Membrane-bounded vesicles that contain enzymes for oxidizing small organic molecules with the formation of hydrogen peroxide are Group of answer choices

Answers

Answer 1

Answer:

peroxisomes

Explanation:

The peroxisomes represent one of the organelles of the cell. They are usually small and characterized by membrane-bound vesicles that contain oxidative enzymes.

The enzymes in peroxisomes are involved in the oxidation of organic molecules - a process that leads to the formation of hydrogen peroxide. The later is further converted to water and oxygen by the constituent catalase enzyme of the peroxisomes. Fatty acids are also oxidized in peroxisomes but instead of hydrogen peroxide, acetyl groups that are utilized in other biosynthetic reactions are produced.


Related Questions

Which of the following does NOT describe telomerase? A. shortens the telomeres in cancer cells. B. present in embryonic cells. C. It stimulates cell division. D. It is an enzyme.

Answers

Answer:

option c is ur ANS mate .......

In ______, Gorter and Grendel extract lipids from blood cells. After evaluating them, they propose membranes are made of a ____________.

Answers

Answer:

The correct answer would be - 1925, phospholipid bilayer.

Explanation:

Gorter and Grendel performed an experiment in 1925 to extract lipids from blood cell and after extracting the protein they evaluated red blood cell membrane.

They found out that plasma membrane have two lipid layer and these lipids are made of phospholipids. Phospholipids are phosphate group that are attached with the lipid molecule.

Thus, the correct answer would be - 1925, phospholipid bilayer.

If one half of a DNA molecule has 8 thymine bases, what else is also true about the DNA molecule? (1 point)
There will be 16 total bases.
O There will be 32 total bases.
There will be 8 adenine bases.
There will be 8 cytosine bases.

Answers

There will be 8 adenine bases.

Thymine always pairs with adenine in DNA, so if there are 8 thymine bases that means there are also 8 adenine bases.

We don’t know how many total bases there will be, and because cytosine does not pair with thymine we don’t know how many cytosine bases there will be.

Match the scientist with the correct description or statement regarding the discovery of the DNA structure.
1. The British scientist working on DNA structure in the 1940's at King's College in London
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
2. An expert of x-ray crystallography
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
3. An American scientist who won the Nobel Prize for work on protein modeling
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
4. Had conducted experiments that showed the ratio of adenine in a DNA molecule was equivalent to the ratio of thymine
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
5. Worked with Francis Crick in Cambridge at the Cavendish Laboratory constructing a model for DNA
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
6. Along with Watson and Crick, won the Nobel Prize for Physiology in 1962
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
7. Credited for the famous "photo 51"
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson
8. Worked out mathematically what a helical defraction should look like in an x-ray defraction photo
a. Francis Crick
b. Rosalind Franklin
c. Erwin Chargaff
d. Linus Pauling
e. Maurice Wilkins
f. James Watson

Answers

Answer:

1. Maurice Wilkins

2. Rosalind Franklin

3. Linus Pauling

4. Erwin Chargaff

5. James Watson

6. Francis Crick

7. Rosalind Franklin

8.

Explanation:

1. Maurice Hugh Frederick Wilkins was a British scientist,  both a molecular biologist and physicist. He made an outstanding contribution to the scientific discovery of the DNA structure. He is well known for his work in the 1940s at King's College in London, where he used optical spectroscopy to understudy the structure of the DNA.

2. Rosalind Elsie Franklin was an expert x-ray crystallographer and chemist, she contributed immensely to the understanding and discovery of the DNA structures as well as the molecular structure of coal, RNA and viruses.

3. Linus Carl Pauling was an American scientist who made a huge impact in the field of molecular biology, he played an important role in the molecular modelling of proteins and this helped in further understanding the DNA code.

4. Erwin Chargaff was an American scientist who formulated the Chargaff's rules and his experimentations helped to show that the ratio of adenine in a DNA molecule was equivalent to the ratio of thymine, as well of the ratio of guanine in a DNA molecule was equivalent to the ratio of cytosine.

5. James Watson and Francis Crick both worked in the Cavendish Laboratory to elucidate the 3- dimensional structure of the DNA.

6. Maurice Hugh Frederick Wilkins along with James Watson and Francis Crick won the Nobel Prize for Physiology in 1962 for their discovery of the molecular structure of the DNA.

7. Rosalind Elsie Franklin was an English scientist and x-crystallographer was famous for "photo 51", this helped to first prove that the DNA was a double helix structure.

8. Rosalind Elsie Franklin worked out mathematically what a helical defraction should look like in an x-ray defraction photo.

Which of the following is responsible for the conversion of covalently closed circular DNA to supercoiled DNA of the plasmid of: a) endonuclease b) DNA gynase c) topa isomerase d) exonuclease

Answers

Answer:

DNA gyrase

Explanation:

DNA gyrase is a bacterial enzyme that plays an important role in catalyzing the negative supercoiling of circular chromosomal DNA. This enzyme belongs to a class of enzymes called topoisomerases which play a major role in transitioning of DNA structure. DNA gyrase conversion of covalently closed circular DNA to supercoiled DNA is ATP-dependent.

The importance of DNA gyrase cannot be overemphasized, because for DNA synthesis to occur, the DNA must have a single-stranded template, hence, DNA gyrase play an important role in unwinding the double-stranded DNA for replication. It has the ability to introduce negative supercoils and relax positive supercoils prior to replication.

If bacteria transformed with a recombinant pUC18 plasmid produce white colonies when grown on plates containing ampicillin and Xgal, which of the following is least likely?

a. They produce β-lactamase that provides resistance to ampicillin.
b. They carry a vector that contains a DNA fragment inserted into the multiple cloning site.
c. They produce functional β-galactosidase that cleaves X-gal.
d. They carry a vector with a lacZ gene that has been disrupted and rendered nonfunctional.
e. They carry a vector with the bla gene used as the selectable marker.

Answers

Answer:

c. They produce functional β-galactosidase that cleaves X-gal.

Explanation:

β-galactosidase is an enzyme capable of catalyzing the enzymatic hydrolysis of β-galactosides into monosaccharides by hydrolyzing the β-glycosidic bond. On the other hand, X-gal is an analog of lactose composed of galactose, which is widely used in laboratories for the detection of β-galactosidase. In the presence of β-galactosidase, X-gal is hydrolyzed by cleaving its β-glycosidic bond, thereby confirming the presence of β-galactosidase.

Transcriptional regulation of operon gene expression involves the interaction of molecules with one another and of regulatory molecules with segments of DNA. In this context, define and give an example of each of the following:

a. operator
b. repressor
c. inducer
d. corepressor
e. promoter
f. positive regulation
g. allostery
h. negative regulation
i. attenuation

Answers

Answer and explanation:

The operator is a DNA fragment localized between the promoter and structural gene sequences that are able to repress operon transcription. A repressor is a molecule that binds to the operator to inhibit transcription, while an inducer is a molecule that activates transcription by binding either to the repressors or to the activators. A corepressor is a molecule that binds to repressors in order to activate them. A promoter is a DNA sequence localized upstream structural genes which binds to a transcription factor in order to activate operon transcription. Positive regulation is the process by which operon transcription acts as a positive loop, thereby increasing its own transcription, while negative regulation is the process by which operon transcription inhibits its own expression. Allostery refers to the process by which a molecule regulates operon transcription by binding to distal (and therefore non-functional) sites of the operon. Attenuation is a process able to reduce operon transcription and also to block subsequent translation.

The dark bands seen under the microscope in a skeletal muscle fiber are concentrations of actin protein called l-bands . It is true or false.

Answers

Answer:

it is false

Explanation:

it appears as light bands under microscope

Answer:

false

Explanation:

because dark band seen under the microscope in a skeletal muscle fiber are concentration of actin protein  are known as A bands because they are anisotropic when viewed with polarized light

Very small changes in the solute concentrations in the various fluid compartments cause water to move from one compartment to another, which alters blood composition and blood pressure. How do the following physiological changes affect blood pressure?

a. Decrease water reabsorption
b. Decrease peripheral resistance
c. Vasodilation
d. Decrease salt intake
e. Decrease blood volume
f. Vasoconstriction
g. Increase peripheral resistance
h. Increase salt intake
i. Increase blood volume
j. Increase water reabsorption

Answers

Answer:

a. Decrease water reabsorption : decrease blood pressure.

b. Decrease peripheral resistance : decrease blood pressure

c. Vasodilation : decrease blood pressure

d. Decrease salt intake : decrease blood pressure

e. Decrease blood volume : decrease blood pressure

f. Vasoconstriction : increase blood pressure

g. Increase peripheral resistance:  increase blood pressure

h. Increase salt intake:  increase blood pressure

i. Increase blood volume : increase blood pressure

j. Increase water reabsorption: increase blood pressure

Explanation:

Total peripheral resistance: This term refers to the resistance offered by the vascular system to the blood flow.  This resistance is a result of the friction between the blood and the vessel's walls. In other words, it is the opposition of the vessels to blood flow. The total peripheral resistance is the summary of all the bloody circuit resistances in the body. Those mechanisms that induce vasoconstriction conduce to an increase in total peripheral resistance, while mechanisms that induce vasodilation provoke a decrease in total peripheral resistance.     Blood pressure: This term refers to the strength applied by the blood against the vessel walls as it flows.  This pressure is determined by the bombed blood strength and the volume as well as by the vessel size and flexibility. Blood pressure changes continuously according to the activity, temperature, diet, emotional state, among others.    Salt ingestion causes an increase in plasmatic osmolarity, stimulates thirst, and hence, water ingestion. Sodium retains water, expanding the blood volume and causing an increase in vessel pressure. The antidiuretic hormone, also known as vasopressin hormone, is released by changes in serum osmolarity or blood volume. Its function is to keep homeostasis and make kidneys conserve or keep water by concentrating urine and by reducing its volume. By these actions, the antidiuretic hormone stimulates water reabsorption, according to the organism´s needs. Kidneys control blood pressure in many ways. If the pressure is elevated, kidneys produce the loss of salt and water, normalizing arterial pressure. But if pressure is low, kidneys conserve water.          

Which of the following statements is true?
An atom consists of protons, electrons, and
neutrons.
An atom consists of protons and neutrons.
An atom consists of electrons bonded to one
another.
An atom consists of protons bonded to one
another.

Answers

Answer:

An atom consists of protons, electrons, and neutrons.

Explanation:

The atom of an element is its smallest indivisible particle that retains its chemical properties. Atom is the fundamental and basic unit of matter.

The structure of an atom is made up of a positively charged PROTON, a neutrally charged NEUTRON (both contained in the nucleus) and a negatively charged ELECTRON that surrounds the nucleus. These three particles are called sub-atomic particles. The arrangement and number of these sub-atomic particles determine the properties of the atom.

First Question, A, An atom consists of protons, electrons, and neutrons.

Second Question, B, A nucleus consists of protons and neutrons.

edge

During a University of Nevada, Reno blood donation campaign, the frequencies of alleles determining the ABO blood groups were determined to be 0.70 for IO, 0.2 for IA and 0.1 for IB. Assuming random mating, what is the expected frequency of blood type O?

Answers

Answer:

The expected frequency of blood type O is 0.49

Explanation: Due to some technical problems, you will find the complete  answer and explanation

Please i need help !!!☹️

Answers

Answer: C. 9

Explanation:

Gestation refers to the time between when a baby is conceived till the baby is delivered. This is why the period of pregnancy is known as the Gestation Period.

During that time and after the fertilized egg implants itself in the uterus, the baby develops and grows until it is ready to be delivered.

The structure this occurs in is the uterus (womb) which is labelled 9 in the structure above.

Why do roosters hibernate?

Answers

Answer:

The answer is

Explanation:

Roosters hibernate to escape the harsh seasonal variations as it cannot fly to different lands and is a flightless bird.

Hope this helps....

Have a nice day!!!!

The total number of organisms an ecosystem can support is its tolerance range.

true or false

Answers

Answer:

false

Explanation:

the total number of organism an ecosystem can support is its trying capacity

Answer:

false

Explanation:

i just took the test.

Based on the data table below, which number would be the BEST choice for the top number of the scale on the vertical axis of a scatter plot showing this data?

Answers

Answer:

D. 70

Explanation:

From the table given, we can easily tell that distance (m) is dependent on time (s). Distance is a dependent variable, while time is an independent variable.

If both variables were to be plotted to show the relationship between them on a scatter plot, the dependent variable is usually plotted on the vertical axis (y-axis), while the independent variable would be plotted on the horizontal axis (x-axis).

Distance would be in the vertical axis, while time would be in the horizontal axis.

Therefore, the BEST choice for the top number of the scale on the vertical axis would certainly be 70, because the highest value for distance (m) on the table of values is 69.

During the 1800's, what country was a leader of world exploration and placed at the center of most maps?
A. Britain
B. Spain
C. Morocco
D. USA

Answers

Answer:

B. Spain

Explanation:

Portugal and Spain are the western European nations that were the primary players in the age of discovery in 18th century. Under the leadership of prince henry the navigator. With the spread of missionary activities, Christianity becomes the world's largest religion. Exploration of the Americas and other nations started from this place.

What two factors must be internally balanced for survival? a) energy and water b) water and materials c) materials and age d) materials & energy

Answers

Answer:        b is the answer hope i helped :)

If this is correct can I get brainlist pls and thank you

have a blessed day :) d

Explanation:

I need help with this

Answers

Answer:

I know the answer

Explanation:

Yes

Yes

Yes

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%

Answers

Answer:

50%

Explanation:

because if you use the box method you see that half receive a short alele.

T     t  

T TT  Tt

T TT   Tt

Give five differences in the alimentary canal of flatworms earthworm and cockroaches

Answers

Answer:

Animals are adapted to the complex chain food since when they were no manufactured to the their food system. Without breakdown this complex food chain can not digest without breakdown.

Explanation:

Earthworm alimentary canal:

Earthworm have a segmentation of well developed characteristics of all animals. The alimentary canal of earth worm as well as flatworm consists of buccal cavity, mouth, esophagus, crop, intestines', gizzard, and anus. The digestion occur extracellular that means the digestion occur outside the cells. Cockroach is an omnivores. It ranging from starchy to the sweet things to the paper and clothes etc. It suits its diet. Its alimentary canal consists of Foregut, midgut and the hindgut. Both are different in their structure as well as in their alimentary canal.

Is this statement true or false?

A hypothesis is a lucky guess.

Answers

True because it can either be wrong or right

Answer:

false!

Explanation: i took the test

It works because your brain creates images from dots. That’s how you can watch shows that you like a whole lot.

Answers

Answer:

The fovea works because your brain creates images from points.

Explanation:

The fovea is located in the center of the eye's retina. It is the structure capable of capturing stitches from what you are viewing and sending those stitches to the brain, which will "stitch" all stitches together and form an image. In summary, the fovea is able to project an image to the brain through pieces of the image, it is formed by cones that allow the transmission of light to the photoreceptors of the eyes.

The fovea works since your brain makes pictures from points.

Brain

The fovea is found within the center of the eye's retina.

It is the structure able of capturing stitches from what you're seeing and sending those fastens to the brain, which can "fasten" all fastens together and frame an picture.

The fovea is able to venture an picture to the brain through pieces of the picture, it is shaped by cones that permit the transmission of light to the photoreceptors of the eyes.

Learn more about "Brain":

https://brainly.com/question/5361122?referrer=searchResults

the oceanic zone is​

Answers

Answer:

The oceanic zone is the region of open sea beyond Continental shelf.

A decrease in muscular activity or damage to neurons that attach to skeletal muscle can lead to a reduction in the size of muscle called

Answers

Answer:

The correct answer is atrophy

Which conclusion can be drawn from the experimental observation that a single strand of DNA contains 2100 dA residues and 1800 dT residues?

Answers

a. There must have been some loss of material in the extraction because the number of dA and dT residues must be the same.

b. This is a palindromic sequence.

c. There must be 2100 dT and 1800 dA residues on the complementary strand.

d. This must be prokaryotic DNA

e. None of these

Answer:

c. There must be 2100 dT and 1800 dA residues on the complementary strand.

"I can be single celled or multicelled. I can reproduce sexually or asexually. I can be heterotrophic or autotrophic. I am Eukaryotic. What am I?"

Answers

Answer:

The correct answer is a protist.

Explanation:

A eukaryotic organism, which cannot be categorized as an animal, plant, or fungus is known as protists. They are majorly unicellular, however, some of them are multicellular like algae. Some of the protists can attain energy for living by consuming other organisms, that is, they are heterotrophic. While some obtain energy from the surroundings via the process of photosynthesis, that is, they are also autotrophic.  

The protists are mainly found in water, however, some of them also thrive in moist soil. These species can be seen anywhere on the Earth, where there is liquid, even within human beings. The reproduction is some of the protists takes place sexually, that is, with the help of gametes, while in some of the protists asexual reproduction also takes place, that is, by the process of binary fission.  

What physical traits were favored in the peppered moth AFTER the Industrial Revolution?

Answers

Answer: Their skin color was dark which made the moths blend in. During the Industrial Revolution, the soot from factories caused the trees to become black. The light colored moths became easier to kill because they could not blend into their environment.

Explanation:

Match the reactant in gluconeogenesis with the appropriate enzyme.

Enzyme:

a. Fructose dehydrogenase
b. PEP kinase
c. Phosphoglycerase
d. Pyruvate kinase
e. Phosphoglyceromutase
f. Glucose kinase
g. Phosphoglycerokinase
h. Phosphofructokinase
i. Hexokinase


1. glucose
2. fructose-6-phosphate
3. fructose-I , 6-bisphosphate
4. phosphoenolpyruvate
5. 1 , 3-bisphosphoglycerate
6. 3-phosphoglycerate

Answers

Answer: a c g e

Explanation:

How can particle interactions explain the properties and behavior of dry ice?

Answers

Answer:

Dry ice is the solid form of carbon dioxide (CO2). The particle interaction in dry ice is due to collision between inter-particles which results in agglomeration and shows the properties and behavior of dry ice.

The inter-particle collision in dry ice keeps the high temperature of dry-ice and make it sublimate (solid to gas) at room temperature and normal pressure.

The collision of carbon atoms in dry ice also makes it highly reactive and shows chemical properties of dry ice. When dry ice is added with magnesium, it left black powder, which is carbon

Food microbiologists are scientists who have a background in both microbiology and food science. They focus on how microbes grow, cause disease, and how they can be identified from food. Their work is of importance to the food industry as it relates to the production, preservation, and spoilage of food; and it is of importance to public health and regulatory agencies due to the many diseases that are related to food intake and consumption. Food microbiologists can have varying backgrounds, including training in veterinary medicine. This scenario is about a food microbiologist who works as a food safety inspector who pays a visit to a cheese manufacturing plant and makes some interesting discoveries!
Part A-Understanding the Role of Microbes in Fermentation The Midwest is known for its contribution to the dairy industry Fermented dairy products include milk, yogurt, and cheese. The fermentation process relies on lactic acid bacteria and pasteurization. Fermentation can vary based on what food is being produced, the type of bacteria used to produce lactic acid, and the time and temperature of pasteurization. It is important to the manufacturer to produce a product that won't spoil before it is packaged and sold and that won't result in disease for those who ingest and enjoy it. Julie, a food inspector for a local Michigan health department is going to a nearby cheese plant for a biannual inspection. When she gets there, she will take a tour of the plant and allow the operators to describe what makes their cheese so special. She will use what she understands about fermentation to inquire about their production practices Please sort the following statements as being true or false regarding fermentation and its role in food production. Please recall the role that microorganisms can play in the production of foods.
1. Fermentation allows for sugars to be broken down
2. Starter cutures are for the growth of pathogens or the food such as bread, vegetables, and n food Some grains, fruits, and
3. Fermentation can be used only to Bacteria ane the only have their own microbes that used in the Correct Statements

Answers

Answer:

Statements 1 is True.

Fermentation allows for sugars to be broken down

Statements 2 and 3 are false.

Starter cutures are for the growth of pathogens or the food such as bread, vegetables, and n food Some grains, fruits, and

3. Fermentation can be used only to Bacteria ane the only have their own microbes that used in the Correct Statements

Explanation:

In microbiology, fermentation is the process where sugars are broken down by the activities of bacteria to produce alcohol and carbondioxide...therefore statement one is true.

Starter culture are microorganisms use in diary production for producing yoghurt and cheese. They perform fermentation in diary production.

Other Questions
The nurse is reinforcing instructions to a pregnant client regarding dietary measures to promote a healthy pregnancy. The nurse instructs the client to consume an adequate intake of fluid on a daily basis. Which statement by the client indicates an understanding of the daily fluid requirement? Read Vice President Aaron Burrs quote about the Senate. [The Senate] is a sanctuary; a citadel of law, of order, and of liberty; and it is here - it is here, in this exalted refuge; here, if anywhere, will resistance be made to the storms of political phrensy and the silent arts of corruption. What was Burr most likely saying about the Senate? The Senate can be counted on to encourage rebellion and discord. The Senate is the lower house not just in name, but in action. The Senate is the stable, righteous, and reliable arm of government. The Senate can exist without the need for another arm of Congress. ABC is a full-service technology company. They provide equipment, installation services as well as training. Customers can purchase any product or service separately or as a bundled package. Container Corporation purchased computer equipment, installation and training for a total cost of $144,000 on March 15, 2021. Estimated standalone fair values of the equipment, installation and training are $90,000, $60,000 and $30,000 respectively. The journal entry to record the transaction on March 15, 2021 will include a an electric device is plugged into a 110v wall socket. if the device consumes 500 w of power, what is the resistance of the device n January 1, 1987, three 100 par value bonds with 6% annual coupons will mature at the end of 1, 2, and 3 years, respectively. The redemption value of each bond is 100. You are given that the prices for these bonds on January 1, 1987 are: Maturity Date Price December 31, 1987 101.92 December 31, 1988 102.84 December 31, 1989 105.51 These prices are based on an interest rate of i in 1987, j in 1988, and k in 1989. Determine j. Bella is wrapping a cube-shaped gift box that measures 8.5 inches along each edge. How many square inches of wrapping paper is needed to cover the box completely without overlapping? A. 34 in.2 B. 72.25 in.2 C. 433.5 in.2 D. 614.125 in.2 PLEASE HELP!!! ASAP!!! What happens when an atom of sulfur combines with two atoms of chlorine to produce SCl2? Solve for X: 1+1*12/80-2+3=56x The range of values for x? Mark currently works part time with a salary of $8000 per year mark plans to quit working and attend college for four years if his college cost will total $64,000 how long will it take Mark to recover his investment assuming he has a salary of $32,000 upon graduating When recording journal entries for production costs using a standard cost accounting system, the debit to Work in Process Inventory account is for the ______ amount. An apartment complex has several 9-story buildings, and every apartment in the complex has a unique number. On the first floor of one of the buildings, you see four apartments numbered 109, 110, 111, and 112. In which building and on which floor is apartment 207? Imagine that you are an early British immigrant to the east coast of America. You have been charged by the British government with establishing a new settlement. What characteristics would you be looking for to create a successful new city Ranjana has two unknown solutions X and Y Someone pls help thank you sm .. Suppose that the central bank must follow a rule that requires it to increase the money supply when the price level falls and decrease the money supply when the price level rises. If the economy starts from long-run equilibrium and aggregate demand shifts right, the central bank must how does root pressure move water In recent years, the interest rates on home mortgages have declined to less than 6%. However, arecent study shows that the rate charged on credit card debt is more than 14%. A sample of 10 creditcards showed that the mean rate charged is 15.64% with a standard deviation of 1.561%. At 1% levelof significance, is it reasonable to conclude the mean rate charged is greater than 14%? Light with an intensity of 1 kW/m2 falls normally on a surface and is completely absorbed. The radiation pressure is