Answer:
An organ is a part of the body of a living organism perform a specific role in the body such as the stomach, the liver and many more. Organelles on other hand are like organs of the cells that are contained in the cytoplasm of cell these also have a certain specialized roles to play for the cell, and they all depend on each other. The example of the organelles are nucleus, mitochondria and many more.
* Organelles are structures inside the cytoplasm of cells
* Organs are amde up of tissues composed of group of specialized cells that, has a particular role in the body
Which statement explains why athletes experience a burning sensation in
their muscles after vigorous exercise?
A. Their muscles have taken in too much oxygen.
B. The conditions in their muscles have become anaerobic.
C. The temperature in their muscles has become too high.
D. Their muscles have become flooded with glucose.
Answer:
B. The conditions in their muscles have become anaerobic.
Explanation:
In humans, cellular respiration occurs naturally in an aerobic condition (presence of oxygen) but anaerobic respiration can be adopted in specific or extreme cases. One of those cases is after or during a VIGOROUS EXERCISE.
What happens is that, after a vigorous exercise by an athlete, oxygen becomes insufficient in their muscle cells due to high consumption. Hence, their muscle cells switch to anaerobic respiration (lactic acid fermentation), which causes the build up of lactate in the muscle tissues. This lactate build up cause athletes to experience a painful and burning sensation in their muscles.
Hence, it all begins when "conditions in their muscles become anaerobic after an exercise".
2. Which of the following organelles is responsible for making chemicals the cell can use for energy for cell processes from the chemicals in the food you eat?
ribosome
mitochondrion
cell membrane
nucleus
Answer:
I think it's mitochondrion.
Explanation:
nuclei/ nucleus - store genetic information;
mitochondria- produce chemical energy; the cell's powerhouse
ribosomes- assemble proteins
cell membrane controls what goes in and out of a cell
A teacher places 65 g of liquid water in a sealed plastic bag and then
places the bag in a freezer.
After the water freezes, what will be the mass of solid ice in the bag
Answer:
65g, mass is always constant. when the water turned to ice it's volume and density changes but not it's mass
Answer:A. Exactly 65 g
Explanation:just to make it more of a simple answer
Which is NOT true of smooth muscle? A. They use peristalsis to move substances through tubes. B. They are found in the hollow parts of the body such as blood vessels and the small intestine. C. They can become fatigued. D. They are connected by gap junctions.
Answer: the answer is C
Explanation: I been trying to find the same answer for this exact question for acellus and C was the correct answer
Sets the metabolic rate for the cells of the body describes
Answer:
BMR ; Basal Metabolic Rate
Explanation:
MR is the rate of energy expenditure per unit time by endothermic animals at rest....
Metabolic comprises the process that the body needs to function.
Basal metabolic rate is the amount of energy per unit of timethat a person needs to keep the body functioning at rest
What type of lipid is estrogen?
steroid
phospholipid
triglyceride
wax
Answer
The Answer is Steroid
Answer:
Steroid.
Steroids are different from other types of lipids because they do not contain any fatty acids.
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A sensory neuron is bathed in tetraammonium chloride and MgCl2, and then the voltage clamp is changed from -70 millivolts to -5 millivolts. You would expect to see:
Answer: hello your question lacks the options related attached below is the complete question
answer :
A brief positive current inward due to sodium entry through voltage gated sodium channels ( Option 4 )
Explanation:
What you would expect to see following the bathing of a sensory neuron in tetra ammonium chloride and MgCl2, given that the voltage clamp moves from -70 to -5 mV is A brief positive current inward due to sodium entry through voltage gated sodium channels.
This is because as Cl^- enters the cells it causes the entrance of Na^+ into the cell ( i.e. voltage gated Na^+ ions channels will open ) hence the mixture will cause a lower negative membrane potential to be present .
The body's natural state of equilibrium is
known as homeostasis. When the body is not
in homeostasis the body goes into ketosis.
What is the name of the psychological
phenomena that could occur to individuals who
are in longer periods of ketosis? The answer to
the question is worthy of exemption from the
final. Let me know if you have any questions.
Answer:
Ketone Bodies Affect Brain Metabolism in Healthy Individuals. In humans, both acute and chronic increases in ketone body availability to the central nervous system cause massive changes in cerebral fuel metabolism.
Explanation:
I deserve brainliest
The psychological phenomena that occurs to individuals with longer periods of ketosis is : Anxiety
The best natural state of the human body is to be in equilibrium ( homeostasis) while sometimes the body goes into an unstable state ( ketosis ) especially due to the deficiency of carbohydrates in the human system.
Ketosis : this is a process where the body system burns up fat stored in body to produce ketones which is used as a source of energy by the body. this process occurs due to deficiency of carbohydrates in the human system, the state of ketosis has some effect on the brain and this causes the release of GABA a neurotransmitter in the brain.homeostasis : this is a state of the human whereby the body is able to maintain/stabilize all the internal variables related to the human body, such as :temperature
emotion level
water level
Hence due to the release of a neurotransmitter ( GABA ) in the brain during ketosis the psychological phenomena that occur during ketosis is ANXIETY
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Most carbohydrates manufactured in leaves and other photosynthetic parts are transported through the phloem to the rest of the plant by the process of translocation. osmosis. transpiration. receptor-mediated transport. turgor pressure.
Answer:
Translocation
Explanation:
Translocation is the movement of sugar that is produced by the source( i.e the part of plants where sugar is produced for other plant parts which could be leaves) to the sinks( i.e the active growing parts of plants where sugar is been deposited for use) where it is used up.
Translocation is done through the phloem tissue to sinks. Sinks could include leaves, fruits, shoots, young developing seeds, tubers and stems.
Translocation is done through the pressure flow model where concentration of sugar that is high at the source creates a low solute potential which helps water movement into the phloem from the adjacent xylem. This movement creates a high pressure potential in the phloem that produce the movement of phloem sap by bulk flow from source to sink.
Why are antibiotics unhelpful for treating the common cold?
A. Colds are caused by antibiotics.
B. Antibiotics cannot treat illnesses.
N
C. Bacteria are not killed by atibiotics.
D. Colds are caused by viruses.
Answer:
D
Explanation:
Colds are only caused by viruses. Therefore, antibiotics only kill bacteria.
g A rare genetic disease arises from mutations in subunits of TAP (TAP1 or TAP2). Individuals with this disease are susceptible to recurrent infections. What effects would you expect from this mutation
Explanation:
A rare genetic diseasearises from mutations in subunits of TAP (TAP 1 or TAP 2). The individuals with this disease are susceptable to recurrent infections.
The efforts could be expected from this mutation- MHC class II molecules will not be loaded with peptides, so CD8+ T cells cannot be activated. MHC class I molecules will not be loaded with peptides, so CD4+T cells cannot be activated MHC class I molecules will not be loaded with peptides, so CD8+T cells without be activated.
Differentiate between population density and population distribution.
Answer:
Population density is the number of individuals in a population per unit area.
Population distribution is the pattern in which individuals in a population are dispersed in an area.
Explanation:
i got it right on edge 2021
Which of the following hormones is directly
controlled by nervous system?
A. Adrenaline
B. Estrogen
C. Thyroxine
D. Cortisol
Answer:
adrenaline is the hormone which is directly controlled by nervous system
Methanogens are able to live in what enviroment
What is the most likely explanation for the results in the graph?
O A. The plantlike organisms are using up all the oxygen that the fish
need.
B. The apple orchard releases toxic chemicals into the water of the
bay.
C. The nitrogen from the fertilizer makes it impossible for plants to
grow
D. The fish have migrated away from the bay to find warmer water,
SUBMIT
Answer:
B. The apple orchard releases toxic chemicals into the water of the bay.
Explanation:
Option B is the correct answer. It is the most likely explanation for the results in the graph.
From the graph, we can see that the population of the fishes sharply dropped. Since the fertilizer is applied to the apple orchard and the orchard was planted beside the bay, during the rain it is possible that the water has washed some of the fertilizers into the bay. The chemicals used in making fertilizer are harmful and toxic.
This reveals that the toxic chemicals released from the apple orchard are responsible for the decline in the population of the fish.
Explain at least two ideas involving the history of evolutionary principles BEFORE Darwin's theory of discovery of natural selection.
Answer:
Species are fixed and Earth itself is less than 10,000 years old.
Explanation:
One theory states that species are fixed, or permanent on the earth and no change occurs. The second theory was that Earth itself is less than 10,000 years old and no change occurs in it. These two ideas present before Darwin's theory of discovery of natural selection which is rejected after Darwin's theory because Darwin's theory is based on evidences.
The space shuttle Endeavor is launched to altitude of 500,000 m above the surface of the earth. The shuttle travels at an average rate of 700 m/s. How long will it take for Endeavor to reach its orbit?
Answer:
Time taken by space shuttle = 714.28 m/s
Explanation:
Given:
Distance cover by space shuttle = 500,000 meter
Speed of space shuttle = 700 m/s
Find:
Time taken by space shuttle
Computation:
Time taken = Distance / Speed
Time taken by space shuttle = Distance cover by space shuttle / Speed of space shuttle
Time taken by space shuttle = 500,000 / 700
Time taken by space shuttle = 714.28 m/s
the impact of grassroots challenges to trash incinerators
A )
Three people are trying to move a box. Which set of forces will result in a net
force on the box of 20 N to the right?
ОА.
20 N
6N
6N
OB.
18 N
28 N
10 N
od od
O c.
口高
55 N
16 N
17 N
OD.
3 B
55 N
17 N 16 N
Answer:
20N coz the box is 20N and I'm sure it has no any force added on it
Which geometric solid is the best model for these cells?
O A. A square pyramid
O B. A sphere
O c. A right circular cylinder
OD. A cube
SUBMIT
Answer:
D. A cube
Explanation:
Epithelium cells are a type of cell that has a simple cuboidal epithelium that consists of only a single layer of cells that are cube-like or cuboidal in shape. These cells have large, spherical nuclei present in the center. These cells are cube-shaped cells
White petal color is a recessive trait.
Answer:
An example of a dominant trait is the violet-colored flower trait. For this same characteristic (flower color), white-colored flowers are a recessive trait.
Explanation:
True or false ? Pioneer species are typically replaced by other species over time
True
False
undesirable side effects that may occur when taking this pill. (2 pts) 5. American soldiers who liberated the Nazi concentration camps at the end of World War II were so moved by the inmates' emaciation that they offered them candy bars and other rich foods. In spite of the inmates' extreme starvation, these foods had to be taken away from them. Explain why. Be specific as
possible. (2 pts)
Answer:
The digestive system can't digest the food properly.
Explanation:
The inmates' extreme starvation, these foods had to be taken away from them because their digestive system can't digest the food properly. When a person experience long duration of starvation, the body can't digest that rich foods properly and has difficulty to digest it so that's why these foods had to be taken away from them and provide those foods which are easily be digested.
If energy is needed to remove a phosphate group from a chain in ATP you can conclude that the energy needed for production must be
Answer:
Nmgxgxgcgxxggxtxyfhhchdydt
Briefly describe the main hormonal and physiological events of each of the following:the uterine cycle
Answer:
Menstruation, the follicular phase, ovulation and the luteal phase.
Explanation:
Menstruation, the follicular phase, ovulation and the luteal phase are the four events or phases of the menstrual cycle. Luteinizing hormone, follicle-stimulating hormone, and the female sex hormones i.e. estrogen and progesterone are the types of hormones that controls the uterine cycle. Each event in the uterine cycle has its own significance in the female body.
Which area appears only on the posterior part of the body? a)scapular b)patellar c)umbilical d)sternal
Answer:
Patellar
Explanation:
Answer:patellar
Explanation:
On the posterior side
Sigmoidal plots of activity versus substrate concentration are exhibited by a. holoenzymes. b. Michaelis-Menten enzymes. c. allosteric enzymes. d. monomeric enzymes. e. isozymes.
Answer:
The correct answer is C
Explanation:
Allosteric enzyme is an enzyme that has more than one active site on the surface of the enzyme. Generally, the binding to one of these active sites affects the affinity of the other active sites on the enzyme; this causes the enzyme not to follow the Michaelis-Menten's enzyme kinetics. Thus, when the activity versus substrate is plotted on a graph, a sigmoidal curve shown instead of an hyperbolic curve (like other enzymes).
Part A
When the following liquids are poured into the same container, they separate as shown in the image. Based on the data
in the table below, what caused the order of the layers?
rubbing alcohol
vegetable oil
water
corn syrup
Liquid
corn syrup
Volume Used
95 cm
90 cm
water
Mass
130.158
90.00 g
77.358
81.90 g
Density
1.37 g/cm
1 g/cm
0.91 g/cm
0.78 g/cm
85 cm
vegetable oil
rubbing alcohol
105 cm
The layers are formed due to difference of density of solutions.
The main cause of the order of the layers is the difference of weight and density of different liquids in the container. The liquids that has more weight means higher density will sink below the liquids that has less weight means lower density so due to difference in their density corn syrup is located at the bottom due to higher density and rubbing alcohol is present at the top of the container due to lower density.
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What caused the order of the layers can be attributed to the densities of the liquids.
The density of a substance is an indication of how heavy the substance is in relation to its volume. Mathematically, it is given as mass/volume.Hence, a liquid with a higher density will always be at the bottom of a liquid with a lower density provided that both of them are of the same volume.In order words, immiscible liquids poured together in the same container will separate out according to their densities - starting with the highest density liquid occupying the bottom with the lowest density liquid staying topmost.
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Why might an individual with AIDS have difficulty fighting off otherwise harmless infections?
Answer:
Having HIV/AIDS weakens your body's immune system. It destroys the white blood cells that fight infection. This puts you at risk for opportunistic infections (OIs). OIs are serious infections that take advantage of your weak immune system.
Explanation:
what is the advantage of having a commercially available glucose gel or liquid available to treat a diabetic emergency?
Answer:
There are also a number of commercially available glucose tablets and gels. Benefits to using commercial products include the following: They aren't as tempting to snack on as candy is. They contain no fat, which can slow down digestion, or fructose, which has a smaller and slower effect on blood glucose.Explanation:
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The advantage of having a commercially available glucose gel or liquid
available to treat a diabetic emergency include the following:
No fat.No fructose.Glucose gels are used to treat individuals with diabetes in emergency
situations. They contain no amount of fats which could interfere in the
process of digestion and slow it down.
They also have no fructose present in the gel as its presence would prevents
which prevents the glucose effects in the body from functioning optimally.
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