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sweet [91]
3 years ago
15

Given the findings in the passage, which additional result most strongly indicates that the TGFBR1 and TGFBR2 receptors regulate

TGFβ-dependent epithelial proliferation?
Biology
1 answer:
zysi [14]3 years ago
5 0

Answer: Option B.

Explanation:

The first experiment of the passage shows that treatment with TGFBR1 and TGFBR2 antagonists led to lower levels of epithelial cell production. For this conclusion to be strongly valid, we want to show a positive correlation between TGFBR activity and epithelial proliferation.

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Biologists use the fluid mosaic model to describe membrane structure.
allochka39001 [22]
<h2>The correct answers are enlisted below:</h2>

Explanation:

  • Three correct statements are:
  1. Statement: 1.
  2. Statement: 2.
  3. Statement: 3.
  • The cell membrane is comprised of a phospholipid bilayer that remains interspersed with protein molecules.
  • Each phospholipid molecule is comprised of:
  1. A glycerol molecule linked with the help of ester bonds to,
  2. one phosphate group,
  3. two fatty acid (saturated or unsaturated) molecules.
  • Being hydrophilic in nature, the phosphate group faces outside the lipid bilayer forming hydrogen bonds with the water molecules.
  • Being hydrophobic in nature, the fatty acid molecules faces to the interior of the bilayer avoiding contact with water and forming hydrophobic interactions with each other.
  • The saturated fatty acid molecules have a straight hydrocarbon chain as they lack any double bonds. However, the unsaturated fatty acid molecules possess multiple double bonds that generate a kink or bent in their structure. The kink causes the molecules to occupy more space in the bilayer and also help these molecules to move laterally about their position, thereby generating fluidity in the membrane.
  • The lateral movement of the lipid molecules also causes the lateral movement in the interspersed protein molecules.
  • The interspersed protein molecules has various functions like, they act as channel proteins, carrier proteins, receptor proteins, etc.
4 0
4 years ago
The common grackle is a species of robin-sized blackbirds that are common (hence the name) over most of the United States. Long
omeli [17]

Answer:

LL

Ll

ll

Explanation :

have uh good day :)))

3 0
3 years ago
Which term describes the study of the functions of the structures of the body?
valentina_108 [34]
<span>Physiology is studying the function of a certain body part.
</span><span>Anatomy is learning about the relationship between body parts. </span>
i think...
4 0
3 years ago
Read 2 more answers
Axons of the nervous system are described as afferent and efferent according to the direction in which they carry information. W
Ahat [919]

Answer:

The correct option is b) motor output of the spinal cord

Explanation:

Motor neurons, also called afferent neurons, drive impulses from the brain and spinal cord to the receptors (eg, muscles). They are the motor output component of the spinal cord.

The spinal cord is a cord of nerve tissue that runs inside the spine. It conducts the nerve impulses that arrive from the receptors to the brain, and the responses with the motor orders from the brain to the effector organs. Thus, the brain receives the information and can develop an order that modifies the reflex response given by the spinal cord. A spinal nerve has two nerve roots: a motor and a sensory root. The motor root has nerve fibers that carry signals from the spinal cord, to the muscles to stimulate contraction and produce muscle movements, the fibers are efferent as they leave the medulla to the periphery through the anterior roots of the spinal nerves.

5 0
4 years ago
Why would there be a relationship between photosynthesis and temperature<br><br> Help me
Mumz [18]

Answer:

Enzyme-controlled chemical reactions combining carbon dioxide and glucose water. The photosynthetic rate is affected by the temperature much like any other enzyme-controlled reaction.

Explanation:

At low temperatures, the number of molecular collisions between enzymes and substrates limits the photosynthetic rate. Enzymes are denatured at high temperatures.

Enzymes are protein molecules used in biological reactions by living organisms. The proteins are folded in a very specific form, which enables them to effectively bind to the molecules of interest. The enzymes used for photosynthesis perform less efficiently at a low temperature between 32 and 50 degrees Fahrenheit 0, 10, and 10 degrees Celsius, which lowers the photosynthesis rate.This will lead to lower glucose synthesis and slow growth. In the case of plants in a greenhouse, this is prevented by installing a greenhouse heater and thermostat.

8 0
3 years ago
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