Answer:
B. Forming a hypothesis
Explanation:
Once you have a question in mind, you form a hypothesis (which is sort of an educated guess of what you expect or do not expect to happen) and then finally you can start on scientific investigations of collecting data and end with analyzing data and showing conclusion.
Answer:
the correct answer is B
Explanation:
because you always try to understand your question after you state it
Two different enzymes catalyze the same reaction and both exhibit the same Vmax. When Enzyme A was run with a 40 uM substrate, the initial rate (Vo) was 10 uM/min, and when g it was run with a 4 mM substrate, the Vo was 20 uM/min. Estimate the approximate Vmax and Km of Enzyme A. When Enzyme B was run with 80 uM substrate, the initial rate (Vo) was 10 uM per minute. Estimate the Km of Enzyme B.
Answer:
a) k_m = 4.08 uM
V_{max} = 20.07 uM/min
b) k_m = 8.16 uM
Explanation:
Given that:
For Enzyme A:
the substrate concentration [S] = 40 uM
the initial velocity rate v = 10 uM/min
when it was 4mM, v = 20 uM/min
i.e.
at 4mM = 4000 uM;
Using Michealis -menten equation;
when v = 10
[tex]V = \dfrac{V_{max}[S]}{k_m+[S]}[/tex]
∴
[tex]10 = \dfrac{V_{max}\times 40}{k_m + 40}[/tex]
[tex]10 (k_m + 40) = V_{max}40[/tex]
[tex]40V_{max} -10k_m = 400 --- (1)[/tex]
when v= 20
[tex]20= \dfrac{V_{max}\times 4000}{k_m + 4000}[/tex]
[tex]20 (k_m + 4000) = V_{max}4000[/tex]
[tex]4000V_{max} -20k_m = 8000 --- (2)[/tex]
equating equation (1) and (2):
[tex]40V_{max} -10k_m = 400 --- (1)[/tex]
[tex]4000V_{max} -20k_m = 8000 --- (2)[/tex]
let multiply equation (1) by 100 and equation (2) by 1
4000V_{max} - 1000K_m = 4000
4000V_{max} - 20 k_m = 8000
0 -980k_m = 4000
k_m = 4000/-980
k_m = 4.08 uM
replacing the value of k_m into equation (1)
40{V_max } - 10(4.08) = 400
40{V_max } - 40.8 = 400
40{V_max } = 400 + 40.8
40{V_max } = 440.8
V_{max} = 440.8/40
V_{max} = 11.02 uM/min
b)
Since V_{max} of A ie equivalent to that of B; then:
V_{max} of B = 11.02 uM/min
Here;
[S] = 80 uM
V = 10 uM/min
∴
[tex]10 = \dfrac{11.02 \times 80}{k_m + 80 }[/tex]
10(k_m +80) = 881.6
10k_m = 881.6 - 800
10k_m = 81.6
k_m = 81.6/10
k_m = 8.16 uM
economic importance of mosquito larva list five
Explanation:
economic importance of mosquito larva are
Mosquito larvae grow by consuming microorganisms such as algae and microbes that decompose decaying plant material. Larval mosquitoes contribute to aquatic food chains by serving as food sources for many predators, including fish and birds.i hope it will help you
53 The graph below shows the changes in the number of species in an ecosystem
Species Diversity
300
200
Number of Species
|..
100
و 12 19 0
1989
1994
1980
Year
Which event was most likely the cause of the changes in species diversity in this ecosystem?
A large volcanic eruption
B A flash flood
Amatorado
D Amigration of cuts
Answer:
your pic is too blurry i cant see
Explanation:
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This mountain slope towers over a town several hundred feet below. Which two weather events present the highest risk to the town
What is a mutation?
A. The visual appearance of an organism
B. A damaged protein
C. A permanent change in DNA or RNA
D. A harmful change to an organism's phenotype
Answer:d
Explanation:
it’s right
What are the measures of <1 and <2 Show your work or explain your answers.
Answer:
<1=105 <2=75
Explanation:
So 2 is 75 degrees because it's corrosponding with <6.
75+<1=180
-75 -75
<1=105
Her eyes are wide-set and slightly slanted. Her nose is short and flat, and she keeps her mouth slightly open. There is a straight crease across her palm, and her fifth digit is unusually short. The doctor tells her parents she has an inherited disorder. If you were the doctor what would you diagnosis Kate with? Discuss the etiology of Kate’s disorder? What is the biggest risk factor for this disorder? How can or will this disorder affect Kate? What test could have been completed to diagnosis this disorder before Kate’s birth?
Answer:
- These morphological features belong to Down syndrome.
- Diagnosis: Down syndrome (Trisomy Extra chromosome 21).
- Etiology: the presence of three copies of the autosomal chromosome 21 instead of two copies in body (somatic) cells.
- Most important health problem: Down syndrome increases the risk of developing Alzheimer's disease (other health problems include heart congenital defects, vision problems, hearing loss, hypothyroidism)
- Diagnostic test: Amniocentesis
Explanation:
Down syndrome (DS) is the most frequent chromosomal abnormality which is generally caused by the presence of an extra copy of autosomal chromosome 21, thereby it is an autosomal trisomy (trisomy 21). DS is often associated with intellectual disability and increased risk of developing Alzheimer's, as well as health problems including, among others, heart congenital defects, vision problems, hypothyroidism, blood disorders, hypotonia, endocrine problems, dental problems, seizures, etc. Amniocentesis is the most common invasive prenatal diagnostic procedure which is used to identify chromosomal abnormalities such as trisomy 21 (Down syndrome). Amniocentesis is done between 15 weeks and 20 weeks of pregnancy.
which characteristic of water allows it to absorb large amounts of energy without a large rise in temperature
Answer:
Specific heat capacity
Explanation:
What is the
nature of water molecules makes that able to absorb heat and moderate our
climate.
An organism that creates its own food is called:
A) a producer
B)a consumer
C)a carnivore
D) a decomposer
Answer:
a
Explanation:
Answer:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.Organisms are characterized into two broad categories based upon how they obtain their energy and nutrients: autotrophs and heterotrophs. Autotrophs are known as producers because they are able to make their own food from raw materials and energy. Examples include plants, algae, and some types of bacteria.
function of semilunar valves in the heart
Answer: They close to prevent blood from flowing back into the ventricles.
Explanation: To find the semilunar valve is the valve between the left ventricle and the aorta is the aortic semilunar valve.
plz explain in your own words
what are conjugated molecules????
What is the process in the cell can be disturbed by the destruction of the mitochondria?
a.
nuclear fission
b.
photosynthesis
c.
oxidation of substances organic
d.
crossing-ove
Answer:
The correct answer is - C. oxidation of substances organic.
Explanation:
The major function of the mitochondria is to perform cellular respiration and produce energy in the form of ATP by oxidating organic molecules. All the process requires energy to be processed, however, the main and primary process that would disturb if by the destruction of the mitochondria occur which is the oxidation of glucose to convert it to pyruvic acid to generate energy.
The Krebs cycle that takes place in mitochondria and performs oxidation of organic molecules will also be disturbed and there will be no energy for any process.
Can you add nutrition please?
Answer:
yes we can add nutrition from healthy and nutritious foods .
hope it is helpful to you
The bacterium Salmonella enterica can cause severe food poisoning and the lining of the alimentary canal may be damaged. In these cases absorption of digested food products cannot easily take place. Which region of the alimentary canal is most affected?
A colon B ileum C oesophagus D stomach
functions of the female reproductive organs
Arrange the biological terms from smallest to largest.
Ecosystem
Population
Cell
Tissue
Biosphere
Molecule
Organism
Atom
Answer:
atom - molecule- Cell -tissue - organism- population- ecosystem-biosphere
Which process requires the absorption of sunlight?
Answer:
photosynthesis requires the absorption of sunlight
How does carbon dioxide travel in blood via dissolved form
Answer:
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood.
Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.
The majority of carbon dioxide is transported as part of the bicarbonate system.
Goodluck
Describe the biome in which you currently live, or one in which you want to live, or have lived. What are the atmospheric conditions (wind pattern, humidity level, etc), solar intensity, and geographic/oceanographic features that have produced this unique ecosystem
Answer:
Southern Texas
Explanation:
The Wind pattern often is represented by the westerlies, which are the winds that flow in the northern latitude of the world. The humidity level in this zone varies from 10-20%, since we are in the desert we do not have much humidity, the solar intensity is high, often found in the 9-10 uv range, it is not advised to spend more than 10 minutes on direct sun without solar protection. We have the Rio Grande to the south and some spare mountains.
Answer:
Southern Texas
Explanation:
New world monkeys belong to the infraorder:
Group of answer choices
Catarrhini
Platyrrhini
Strepsirrhini
Tarsiiformes
Answer:
catarhini. hope helpful answer
Answer:
The answer for this question is that they belong to Platyrrhini
Explanation:
Which of the following is not a limitation of the biological species concept
Answer:
to be considered a species, a population must be reproductively isolated from other species
Explain why the definition of a quality life is highly individualized.
to put it briefly, its because no one likes to struggle. Everyone wants to live comfortable without a worry to the world. when they see someone who has accomplished that state of life, they envy, or admire that person deeply. when you see that new loui bag or gucci belt, you instantly have this desire to own luxury things.
which definition best describes a buffer?
Answer:
where are the options
Explanation:
__________ law, which helps explain the critical closing pressure, states that the force that stretches the vascular wall is proportional to the diameter of the vessel times the blood pressure.
Answer:
Laplace law
Explanation:
Have a nice day :)
•. What is the phenotypic ratio of complementary gene?
a) 1:2:1
b) 9:7
c) 13:3
d) 9:3:3:1
If the contents of a cell have a solute concentration of 0.04 percent which of these solutions would cause it to swell?
Answer:
The contents of a cell if has the solute concentration as 0.04 percent then it should have much lesser concentration that the cell, then only it will allow the cell to swell. Because of the solutions with a lower osmotic pressure than a cell fluid solution concentration, can make it swell.
Explanation:
How many chromosomes do each sex cell have
[tex] \huge \tt{Hello...!}[/tex]
My AnswerIn humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes. Human sex cells (egg and sperm cells) contain a single set of chromosomes and are known as haploid.
I Hope it's Helps ╮(＾▽＾)╭
#CarryOnLearningBirds differ from their closest relatives, the reptiles, in what ways?
(choose all that apply)
the bones of reptiles are too lightweight to permit flight
birds are capable of powered flight, while some reptiles can glide
birds have feathers, reptiles have scales
only the birds lay eggs on land; the reptiles can only lay their eggs in water
the reptiles have a series of internal air sacs that allow a very efficient extraction of oxygen
birds are endothermic, while reptiles are generally ectothermic
1 pts
Answer:
birds have feathers, reptiles have scales
birds are endothermic, while reptiles are generally ectothermic
Explanation:
The main difference between birds and reptiles is that birds have feathers on their body while on the other hand, reptiles ahve dry skin and have scales. Reptiles are ectotherms, while birds are endotherms. An ectotherm relies on its external environment to regulate the temperature of its body whereas Endotherms are able to regulate their body temperatures by producing heat within the body.
2. What is the longest wavelength?
Answer:
red
Explanation:
Visible light may be a tiny part of the electromagnetic spectrum, but there are still many variations of wavelengths. We see these variations as colors. On one end of the spectrum is red light, with the longest wavelength. Blue or violet light has the shortest wavelength.
Answer:
red has the longest wavelength.
Explanation:
blue and violet are the shortest
