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Helga [31]
3 years ago
7

What is the difference between a countercurrent multiplier system, such as the one involving the loop of Henle, and the counterc

urrent systems that maximize oxygen absorption by fish gills or reduce heat loss in endotherms?
A. A countercurrent multiplier system, such as the one involving the loop of Henle, involves movement of ions rather than movement of oxygen or heat transfer.
B. Unlike the other countercurrent systems, a countercurrent multiplier system, such as the one involving the loop of Henle, expends energy in active transport.
C. A countercurrent multiplier system, such as the one involving the loop of Henle, includes a capillary bed.
Biology
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

The CORRECT ANSWER IS B.

B. Unlike the other countercurrent systems, a countercurrent multiplier system expends energy in active transport.

Explanation:

The countercurrent multiplier system involving the loop of Henle uses up energy in the form of ATP to actively conduct NaCl out of the filtrate in the upper region of the ascending limb of the loop. This energy in the form of ATP that is being used uniquely differentiates a countercurrent multiplier system from the different forms of countercurrent systems.

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5 0
3 years ago
Why does darkness affect the light-independent reactions of photosynthesis?
notsponge [240]

Answer:

The correct answer would be Light independent reactions require the energy gathered in the thylakoids.

Photosynthesis can divided into two sub-processes or reactions:

Light-dependent reaction: It converts solar energy into chemical energy that is, ATP (adenosine triphosphate) and NADPH with the help of photolysisis of water. It takes place in thyllakoid membrane of the chloroplast.

Light-independent reaction: It fixes carbon obtained from carbon dioxide into the food or glucose with the help of enzyme RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase).

It takes place in the stroma of the chloroplast and does not require the involvement of light however, it requires the products (ATP and NADPH) of the light reaction.

Fixation of 1 molecule of glucose requires 6 molecules of carbon dioxide, 9 molecules of ATP and 6 molecules of NADPH.

So, darkness indirectly affects the light-independent reaction.

5 0
3 years ago
Read 2 more answers
You are choosing your favorite fresh vegetables at the grocery store when you are suddenly sprayed with a mist of water meant fo
loris [4]

Answer:

c) pure water on the produce would put it in a hypotonic environment and keep the produce firm.

Explanation:

Ideally, in a natural environment, plants leafs remain fresh and firm looking by absorbing water from their natural environment. However, in a case where these vegetables have been removed from their natural environment, they have lost the ability to absorb water under natural conditions.

In order to keep the leaf cells of the vegetables firm and rigid, so they can look fresh and appealing, they have to be placed in a hypotonic condition i.e. an external condition with high concentration of water. To do this, a grocer in a supermarket will occasionally spray the vegetables with pure water to keep the vegetables' cell from drying out and hence lead to wilting, which would make the vegetables less appealing to customers.

5 0
3 years ago
During the final stages of pregnancy, uterus prepares for the delivery of the baby. The release of hormone oxytocin during labor
BaLLatris [955]

Answer:

The Excretory System, The Reproductive System and The Endocrine System.

Explanation:

The Excretory System includes your bladder, uterus, and some of your organs. It is also called the "Urinary System". The Reproductive System includes your birth canal. This system helps to reproduce the body to have babies. The Endocrine System includes your hormones. It helps the body to depend on growth development or mood.

I hope this answers your question! :)

5 0
3 years ago
How many human blood types are there? summarize how blood type is inherited
olga55 [171]

Explanation:

There are 4 main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are 8 blood groups.

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3 years ago
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