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Q:

What happens at the synapse between two neurons?

A) electrical signals are converted into chemical B) chemical signals are converted into physical
C) physical signals are converted into chemical D) None of the above

Answer:   A) electrical signals are converted into chemical



Explanation:

At the synapse between two neurons, electrical signals are converted into chemical signals. A synapse is the gap between the two neurons.

Subject: Biology
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Q:

All of the following are fat-soluble vitamins except

A) Vitamin C B) Vitamin D
C) Vitamin A D) Vitamin K
 
Answer & Explanation Answer: A) Vitamin C

Explanation:

Fat-soluble vitamins except are the vitamins that are not soluble in water and are only absorbed when taken with higher fat food.

There are 4 types of fat soluble vitamins. They are :

  • Vitamin A
  • Vitamin D
  • Vitamin E
  • Vitamin K

 

Water soluble vitamins are Vitamin B and Vitamin C.

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Q:

Activation of the receptors by stimuli is called

A) Adaptation B) Perception
C) Habituation D) Sensation
 
Answer & Explanation Answer: D) Sensation

Explanation:

Sensation is the activation of the receptors by stimuli.

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Q:

Type 1 diabetes is more common than type 2 ?

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

Type 2 diabetes is the most common form of diabetes.


 



  • If you have type 1 diabetes your body does not release insulin.


 



  • If you have type 2 diabetes your body does not use insulin properly.

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1 30
Q:

Produces a usable form of energy for the cell

A) Lysosomes B) Vacuoles
C) Mitochondria D) Ribosomes
 
Answer & Explanation Answer: C) Mitochondria

Explanation:

We all know that, Mitochondria is the powerhouse of the cell. In both Plants and animals, it produces a usable form of energy.

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Q:

Gastrulation is the process that directly forms the

A) Ectoderm B) Endoderm
C) Mesoderm D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Gastrulation rearranges the cells of the blastula and ultimately forms the three germ layers of the embryo. The primary layers that will form all of the major body and organ systems of the organism, these germ layers include the ectoderm, mesoderm, and endoderm.

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Q:

The thyroid hormone that regulates carbohydrate metabolism is

A) Parathyroid B) Thyroxin
C) Parathormone D) Estrogen
 
Answer & Explanation Answer: B) Thyroxin

Explanation:

Thyroxin or Thyroxine is the thyroid hormone that regulates carbohydrate metabolism in the human body.

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Q:

Part of the plant where photosynthesis generally occurs

A) roots B) leaves
C) branches D) flowers
 
Answer & Explanation Answer: B) leaves

Explanation:

In a plant, photosynthesis generally occurs in the leaves part as leaves have chlorophyll which is used for making food using sunlight.

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Q:

Some niacin is formed in the body from

A) Liver B) Skin
C) Appendix D) None of the above
 
Answer & Explanation Answer: A) Liver

Explanation:

Niacin is the name for vitamin(B3).

 

Liver can produce small amount of niacin from tryptophan.

 

To produce 1 mg of niacin we require 60 mg of tryptophan.

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