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german
3 years ago
8

If a large molecule needs to move against the concentration gradient, what structure will need to be used ?

Biology
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

The structure of ATP will need to be used.

Explanation:

Adenosine triphosphate or ATP is an energy rich compound which undergo hydrolysis in presence of water to generate free energy.

         When a molecule is moving against its concentration gradient it requires the input of energy which is generally supplied by the hydrolysis of ATP molecules.

For example Na+K+ATPase uses the energy derived from ATP hydrolysis to transport Na+ inside the cell and K+ outside the cell.

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17) Derived from mesenchyme. C) Tendon  

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Cardiac muscle is found in heart which pumps blood through the whole body.

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Motility through the GI tract is achieved by the contractions of ring smooth muscles (peristalsis).

2.  

21) Smooth muscle. B) Moderate regenerative ability.  

Cells called pericytes are cells that can regenerate smooth muscle cells. Also, smooth muscle cells themselves retain the ability to divide and thus regenerate (increase their own number).

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Skeletal muscle contain  'satellite cells'-stem cells that have the ability to regenerate and repair the damaged fibres.  

23) Cardiac muscle A) Virtually no functional regenerative ability.  

When the cell of cardiac muscle-cardiac muscle cells die, they are not replaced.

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Areolar connective tissue is loose connective tissue that hold organs in place. Fibroblasts are cells widely dispersed in this tissue

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6 0
3 years ago
Men do not have all ___ in their testes at birth.
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I believe it would be sperm 
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Answer:

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After oxygenation, the pulmonary vein brings blood to the left atrium

Contraction of the left atrium pushes the blood through the mitral valve into the left ventricle

The left ventricle contracts to push the blood through the aortic valve, into the aorta, which carries the blood through the body.

Explanation:

4 0
3 years ago
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Which situation is a long-term effect of the industrial revolution?
vodka [1.7K]
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3 years ago
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professor190 [17]
<h2>Answer is option "B"</h2>

Explanation:

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  • hence, the right answer is option B "Plant lived near the poles,but landmasses have drifted to current locations".

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