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Fiesta28 [93]
3 years ago
12

Anyone know the answers?

Biology
1 answer:
aev [14]3 years ago
3 0
The answer to question 1

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The iris in the human eye contracts and expands, controlling the amount of light that reaches the retina. What types of muscle c
saveliy_v [14]

Answer:smooth and involuntary

Explanation:the sphincter papillae are muscles responsible for narrowing the pupil, while the dilator papillae makes the pupil larger. Both of them are smooth types of muscles, that are controlled by nerves, sending signals from the brain about the light conditions.

3 0
2 years ago
PFK can be allosterically inhibited by ATP at high concentrations. Which of the following is the benefit of regulating glycolysi
melamori03 [73]

Answer:

The principle benefit of regulating glycolysis by the concentration of ATP is to signals the cell to stop glycolysis as sufficient amount of ATP is already present in the biological system.

Explanation:

Phosphofructokinase 1 is allosterically inhibited by ATP.Glycolysis is a catabolic as well as exergonic process which deals with the oxidation of glucose to form pyruvate along with ATP molecules.

            When ATP is present at high concentration within our body at that time there is no need to synthesize additional ATP because ATP is already present in sufficient amount.

       To maintain its own homeostasis ATP allosterically inhibit the catalytic activity of phosphofructokinase. As a result glycolysis is inhibited and the glucose molecule can be utilized in other metabolic pathways.

8 0
3 years ago
What direction does rna polymerase synthesize rna?
Mamont248 [21]

Answer:RNA polymerase synthesizes an RNA transcript complementary to the DNA template strand in the 5' to 3' direction. It moves forward along the template strand in the 3' to 5' direction, opening the DNA double helix as it goes.

Explanation:

5 0
2 years ago
What is the answer to 4?
Damm [24]

The iodine can change the color of the starch to a deep blue to black color.

8 0
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If a robot fixed another robot is it a Engineer Or doctor?
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ITS NOT EVEN A DOCTOR NOR A ENGINEER IT JUST DID WHAT IT WAS COMMANDED TO DO
4 0
2 years ago
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