Question

Please answer 1-5

Which of the following vessels is the site of exchange of oxygen, carbon dioxide, nutrients, and wastes in the circulatory system? Select one: O a veins Ob arteries O carterioles O d. capillaries The is ultimately in control of releasing ALL hormones in the body. Select one: O a hypothalamus Ob gonads O c anterior lobe of the pituitary gland od pancreas During an action potential: Select one a. Na rushes into the cell b. the inside of the cell becomes positively charged c. there is a depolarization of the cell n d all of the above

Answer 1

1. The vessels which act as the site for the exchange of gases like oxygen and carbon dioxide, nutrients and wastes in circulatory system are known as capillaries.

Hence, the correct option is (d)

2. The hypothalamus is the part of brain which plays a vital role in controlling the release of hormones from pituitary gland.

Hence, the correct option is (a)

3. During the action potential, depolarization occurs, due to which Na+ ions move into the cell and make the inside of cell positively charged. So, all three options are correct.

Hence, the correct option is (d)

4. An adult having 2 copies of each chromosomes is known as having diploid number of chromosomes while a sex cell like sperm or egg has only one copy of each chromosome is known as haploid.

Hence, the correct option is (c)

5. The part which forms urine is known as nephrons, and they are found in the kidney.

Hence, the correct option is (d)

Hope it helps, Good luck !!!!

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