Question

JUST ANSWERS. NO EXPLANATION

Most digestion occurs in...

Question 21 options:

	The duodenum.
	The ileum.
	The large intestine.
	The jejunum.

Question 22 (2 points)

In the female body, fertilization typically occurs in the...

Question 22 options:

	Vagina.
	Fallopian tube.
	Ovary.
	Uterus.

Question 23 (2 points)

Which of the following occurs as a result of meiosis?

Question 23 options:

	Zygotes are produced.
	The total number of chromosomes per cell is halved.
	The original, dividing cell goes through a total of four stages.
	All of the former occur during meiosis.

Question 24 (2 points)

The surface tension in alveolar sacs is reduced for proper lung inflation by...

Question 24 options:

	Contraction of the diaphragm muscle.
	Type 1 alveolar cells.
	Lung elasticity.
	Surfactant.

Question 25 (2 points)

Which of the following types of sensory receptors is sensitive to pain?

Question 25 options:

	Mechanoreceptor
	Proprioceptor
	Thermoreceptor
	Nociceptor

Question 26 (2 points)

If a person ingested a large amount of an alkaline substance, his/her urine would be expected to contain a higher-than-normal amount of...

Question 26 options:

	Bicarbonate ions (HCO3-).
	Carbonic acid (H2CO3).
	Carbon dioxide (CO2).
	Hydrogen ions (H+).

Question 27 (2 points)

The purpose of microvilli is to...

Question 27 options:

	Stimulate peristalsis.
	Increase surface area for absorption.
	Emulsify fat.
	Produce bicarbonate to raise pH.

Question 28 (2 points)

The hormone/enzyme renin...

Question 28 options:

	Converts angiotensinogen to angiotensin 1.
	Is produced by the kidney.
	Is made in response to a decrease in blood pressure.
	All of the former are correct.

Question 29 (2 points)

The hormone that causes calcium to be stored in bone is made by the...

Question 29 options:

	Adrenal medulla.
	Pancreas.
	Thyroid gland.
	Parathyroid glands.

Question 30 (2 points)

The blood of human beings contains molecules that function as buffers. Their purpose is to...

Question 30 options:

	Catalyze chemical reactions.
	Store energy in chemical bonds.
	Prevent the pH from changing much when acid or base is added.
	Cause opposite molecules to weakly bond with each other.

Answer 1

Question No. 21

Answer :- The deodenum

Explanation : Most digestion occurs in the upper portion of the small intestine called the duodenum.

Question No.22

Answer :- Fallopian tube

Explanation : Fertilization in female normally occurs within the uterine tube or fallopian tube.

Question No.23

Answer :- The total number of chromosomes per cell is halved.

Explanation : Meosis is the process of reduction division in which the number of chromosomes per cell is halves throughout the separation of homologous chromosomes in a diploid cell.

Question No.24

Answer - surfactant

Explanation : Surfactant decreases surface tension of the alveolar fluid and thereby decreases resistance of the lung to stretch and cause inflation....Thanks