Biology

Human Physiology and Anatomy

2,062 Questions

Human physiology and anatomy explore the structural organization and biological functions of the human body and its systems. Questions focus on the primary roles of organs, hormones, cellular components, and developmental processes. These fundamentals are integral to medical entrance tests and general science sections.

Organ functionsHormone functionsImmune system rolesDigestive systemCellular functions

Human Physiology and Anatomy Questions

Multiple choice

Which of the following statements is incorrect?

  1. Tight junctions help to stop substances from leaking across a tissue.

  2. Adhering junctions perform cementing to keep neighbouring cells together.

  3. Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells.

  4. Adhering junctions facilitate rapid transfer of ions, small molecules and sometimes big molecules between adjoining cells.

  5. Blood is a connective tissue.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Adhering junctions perform cementing to keep neighbouring cells together.

Multiple choice

The function of WBC is

  1. to distribute heat

  2. to protect enzymes

  3. to cause blood clotting

  4. to destroy bacteria

  5. to distribute hormones to the respective sites
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

WBC act as the line of defense of the body. It destroys bacteria and other germs.

Multiple choice

Which of the following is not a function of Lymph?

  1. Lymph contains lymphocytes which destroys harmful pathogens.

  2. It filters out bacteria through the lymph nodes or lymph glands.

  3. It controls the concentration of proteins in the tissue fluid.

  4. It absorbs fatty acids and glycerols through the lacteals and villi.

  5. It transports water and digested food from the digestive tract to other organs.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is the function of blood not lymph.

Multiple choice

Which is the most specific function of the utricle?

  1. It is a component of balancing apparatus.

  2. Detects head tilt in a horizontal plane

  3. Detects head tilt in a vertical plane

  4. Detects linear acceleration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Head tilt in horizontal plane is detected by the utricle.

Multiple choice

The two main functions of sweat are

  1. to filter blood and to remove waste products

  2. to keep the body cool and to remove excess proteins

  3. to remove waste products and to cool the body

  4. to keep the body warm and to filter blood
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The two main functions of sweat are to remove waste products and to cool the body.

Multiple choice

What is the function of Jacobson's organ in humans?

  1. It contains sensory cells for hearing.

  2. It smells the food and keeps it in knowledge.

  3. It is a vestigial organ.

  4. It is an exocrine gland.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Jacobson's organ is a vestigial organ in humans.

Multiple choice

Which of the following roles are played by the air plays in the life cycle on Earth? (a) Air helps in the movements of sailing yachts, gliders, parachutes and airplanes.
(b) Birds, bats and insects can fly due to the presence of air. (c) Air plays an important role in water cycle. (d) Air helps in the dispersal of seeds and pollen of flowers of several plants.

  1. a, b and d

  2. a, b and c

  3. a, c and d

  4. none of them

  5. all of them
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Correct. Air plays an important role in the life cycle of Earth. All these are possible only because of presence of air.

Multiple choice

Which of the following functions is performed by vitamin D in human body?

  1. It helps to promote the absorption of calcium from food.

  2. It helps to maintain the eye sight.

  3. It helps in building new tissues and cells.

  4. It regulates the body temerature.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Different vitamins play different roles in our body. Vitamin C helps fight against diseases. Vitamin D promotes the absorption of calcium from food and helps our body use calcium for bones and teeth.

Multiple choice

What function does LH perform in males?

  1. Stimulates process of spermatogenesis

  2. Stimulates the interstitial cells to secrete testosterone

  3. Controls the change in the colour of the skin

  4. Stimulates the development of corpus luteum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In males, LH stimulates the interstitial cells to secrete testosterone.

Multiple choice

Which of the following is not a function of the cell membrane?

  1. Cell membrane encloses the living part of the cell.

  2. Cell membrane controls all the activities of the cell.

  3. Cell membrane protects the cell and also gives shape to it.

  4. Cell membrane controls the movement of substances 'into the cell' and 'out of the cell'.

  5. The cell membrane separates the cells from one another and also from the surrounding medium.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option, as this is not a function of the cell membrane.

Multiple choice

Which of the following is/are function(s) of tapetum?

  1. Secretion of enzymes and hormones

  2. Transportation of nutrients

  3. Production of ubisch bodies

  4. Secretion of special type of protein for pollen to recognise compatibility

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option.

Multiple choice

Which of the following is/are not the function(s) of lysosomes?

A. Defence B. Digestion C. Protein synthesis

  1. Only A

  2. Only B

  3. Only C

  4. Both A and B

  5. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lysosomes are cellular organelles that contain acid hydrolase enzymes that break down waste materials and cellular debris. They can be described as the stomach of the cell. Lysosomes digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria.