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

The main function of digestive system is

  1. gaseous exchange.

  2. to process the food.

  3. to remove wastes produced by the body.

  4. transportation of nutrients & gases within the body.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The primary function of the digestive system is to break down the food we eat into smaller parts so the body can use them to build and nourish cells and provide energy.

Multiple choice

Which of the following is not a function of liver?

  1. Acts as detoxifier.

  2. Cholesterol formation.

  3. To break down macromolecules.

  4. Bile formation.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is chief function of buccal cavity to break down huge macromolecules (proteins, fats and starch), which cannot be absorbed intact, into smaller molecules (amino acids, fatty acids and glucose) that can be absorbed across the wall of the tube, and into the circulatory system for dissemination throughout the body.

Multiple choice

What is the function of eustachian tube?

  1. Regulates the air pressure on both sides of the ear drum

  2. Regulates temperature on both sides of the ear drum

  3. Regulates the sound variation on both sides of the ear drum

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary function of the Eustachian tube is to equalize air pressure on both sides of the ear drum, which is essential for proper hearing and preventing damage.

Multiple choice

The function of ear other than hearing is ________.

  1. maintaining pressure of the body

  2. maintaining temperature of the body

  3. maintaining balance of the body

  4. all of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ear serves two primary functions: hearing (audition) and maintaining equilibrium or balance, which is mediated by the vestibular system in the inner ear.

Multiple choice

What is the function of ear wax?

  1. Protect ear from insects, germs and dust

  2. Help to maintain the temperature of the auditory canal

  3. Help to maintain the dampness of the auditory canal

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ear wax (cerumen) serves multiple protective functions, including trapping dust and pathogens, and maintaining the health and moisture of the ear canal skin.

Multiple choice

What is the most important function of perspiration?

  1. Get rid of body wastes

  2. Regulates body temperature

  3. Regulates body water supply

  4. Lubricates the tissues
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Perspiration (sweating) is primarily a thermoregulatory mechanism. As sweat evaporates from the skin, it absorbs heat, which helps cool the body down.

Multiple choice

A function of golgi body is

  1. Excretion

  2. ATP synthesis

  3. Secretion

  4. RNA synthesis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Golgi body has a number of functions, including sorting and processing proteins. Proteins are synthesized in the rough endoplasmic reticulum, then they travel to the Golgi body. While in the Golgi body, they are processed and sent throughout the cell. The Golgi body is also responsible for determining which proteins are to be transported outside the cell.

Multiple choice

What is the function of gills in aquatic animals?

  1. To absorb dissolved oxygen in water

  2. To attain energy from food

  3. To help in body movement

  4. To act as balancer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gills are the organ of respiration in aquatic animals. Oxygen is present in dissolved form in water. Gills help these animals to absorb this dissolved oxygen in water. It is the fins in fish which act as balancer and a streamlined body to help in movement.

Multiple choice

What is the importance of ribcage?

  1. It protects the inner delicate organ.

  2. It helps in attachment of muscle and bone.

  3. It helps in bone movement.

  4. It provides elasticity to bones.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rib cage is a hard bony structure, in the cavity of which the lungs rest. Lungs are the delicate organs and stay protected in this hard bony structure. Thus, ribcage protect delicate organs.

Multiple choice

The main function of sieve tubes is

  1. food conduction

  2. protein transfer

  3. enzyme transfer

  4. transcription
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Sieve tubes are present in phloem. The main function of sieve tubes is conduction of food.

Multiple choice

In mammals, the role of spleen is to

  1. assist the kidney

  2. assist the liver

  3. control blood pressure

  4. act as hematopoietic organ

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In mammals, the role of spleen is to assist the liver.The spleen acts as a blood filter; it controls the amount of red blood cells and blood storage in the body, and helps to fight infection.

Multiple choice

Which of the following is the main function of xylem vessel?

  1. Mechanical support

  2. Conduction of organic food

  3. Conduction of water and minerals

  4. Prevention of guttation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Conduction of water and minerals is the main function of xylem vessels.Vessel elements are typically found in flowering plants (angiosperms) but absent from most gymnosperms such as conifers. Vessel elements are the main feature distinguishing the "hardwood" of angiosperms from the "softwood" of conifers.