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 general knowledge science & technology

The main function of kidney is..

  1. To control blood pressure

  2. To control body temperature

  3. To remove waste product from the body

  4. To help in digestion of food
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Kidneys filter blood and remove metabolic wastes like urea, creatinine, and excess salts through urine formation. While kidneys also help regulate blood pressure via the renin-angiotensin system, waste removal is their primary function. Body temperature is regulated by the hypothalamus and sweat glands in the skin, not kidneys.

Multiple choice general knowledge science & technology

The main function of hemoglobin is...

  1. Transportation of oxygen

  2. Destruction of bacteria

  3. Prevention of anemia

  4. Utilization of energy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hemoglobin is a protein in red blood cells that binds oxygen in the lungs and transports it to body tissues. It gives blood its red color and is essential for aerobic respiration. Hemoglobin does not destroy bacteria (that's white blood cells), prevent anemia (it actually causes anemia when deficient), or directly utilize energy.

Multiple choice general knowledge science & technology

One of the following is not a function of bones.

  1. Place for muscle attachment

  2. Protection of vital organs

  3. Secretion of hormones for calcium regulation in blood and bones

  4. Production of blood corpuscles
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bones provide attachment points for muscles (A), protect vital organs like the brain and heart (B), and produce blood cells in bone marrow (D). However, hormone secretion for calcium regulation is done by the parathyroid gland and calcitonin from the thyroid gland, not by bones themselves - though bone tissue responds to these hormones.

Multiple choice

Which of the following is not the function of telomere?

  1. It decides the number of cell divisions.

  2. It controls the process of ageing.

  3. It secretes telomerase enzyme.

  4. It helps in recombination.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The function of telomere is to decides the number of cell divisions, controls the process of ageing and secretes telomerase enzyme. Recombination is not its function.

Multiple choice

Thymosin plays an important role in

P. differentiation of T-lymphocytes Q. production of antibodies R. reabsorption of calcium ions by renal tubules S. conversion of glucose to glycogen

  1. P and Q

  2. P and R

  3. P and S

  4. Q and R

  5. Q and S
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because thymosin is secreted by the thymus gland. Thymosins play a major role in the differentiation of T-lymphocytes, which provide cell-mediated immunity. In addition, thymosins also promote production of antibodies to provide humoral immunity.

Multiple choice

Which of the following functions is not performed by blood in our body?

  1. Transport of chemical messengers

  2. Conversion of food into fuel for body's cells

  3. Transports nutrients and oxygen to different parts of the body

  4. Helps to maintain a constant body temperature

  5. Protects our body from the disease carrying germs
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is the function of pancreas in our body. All other functions are performed by blood in human body.

Multiple choice

The rough endoplasmic reticulum plays a vital role in multiple functions of the cell. Which among the following can be excluded from the functions of rough endoplasmic reticulum?

  1. Manufacture of lysosomal enzymes

  2. Manufacture of secreted proteins

  3. N-linked glycosylation

  4. Folding of protein molecules in sacs

  5. Protein sorting pathway
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The smooth endoplasmic reticulum serves many general functions, including the folding of protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles to the Golgi apparatus.

Multiple choice

Water plays a vital role in the body's system. Which of the following is not a role of water?

  1. It helps our body to absorb nutrients from food.

  2. It transports nutrients throughout the body.

  3. It collects wastes from different parts of the body and removes them from the body in the form of urine and sweat.

  4. It helps to keep the body warm.

  5. It cools the body when sweat is evaporated from the skin.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fat helps to keep the body warm. It is a role of fat in the body’s system. It is not a role of water in the body’s system. Hence, it is the correct answer.

Multiple choice

What is/are the function(s) of blood?

  1. Transport of oxygen and carbon dioxide

  2. Transport of nutrients and waste products

  3. Regulation and maintenance of temperature and pH

  4. Defence against diseases

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

Blood performs all of the above functions.

Multiple choice

What is/are the function(s) of plasma?

  1. Distributing nutrients and collecting waste

  2. Controlling and coordinating the amount of water in the body

  3. Both (1) and (2)

  4. Providing defence against diseases

  5. Clotting
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It carries out both the functions.

Multiple choice

What is the function of chromatophores?

  1. To store fats

  2. To accumulate chondrin

  3. Formation of melanin

  4. Form reticular tissue

  5. Constrict blood vessels
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Chromatophores or pigmented cells possess melanin which impart colour to the animals.

Multiple choice

What is the function of ligament?

  1. It connects bones to muscles.

  2. It connects a bone to another bone.

  3. It connects the cartilage to the muscles.

  4. It forms the outer surface of the organs.

  5. It makes hair.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ligament is a connective tissue which connects a bone to another bone.