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

What is the chief function of HCl?

  1. To dissolve enzyme secreted in the stomach

  2. To maintain a low pH to prevent growth of microorganisms

  3. To maintain low pH to facilitate absorption

  4. To maintain low pH to activate pepsinogen to form pepsin
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

HCl maintains low pH to activate pepsinogen to form pepsin.

Multiple choice

Why are proteins called body building foods?

  1. They provide energy to our body.

  2. They protect our body against diseases.

  3. They are needed for the growth and the repair of our body.

  4. They regulate the water level in our body.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Each nutrient of the balanced diet has a particular function to perform in our body, e.g. proteins are the building blocks for the body because they are required by the body for its optimal growth and repair of worn out tissues. 

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 to fight against diseases. Vitamin D promotes the absorption of calcium from food and helps our body to use calcium for bones and teeth. 

Multiple choice

The role of porocyte cells is

  1. excretion in flat worms

  2. to form excurrent opening for water current in sponge

  3. to secrete sweat in mammals

  4. to form incurrent opening for water current in sponge.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Porocytes are specialized tubular cells in sponges that form the ostia, which are the incurrent pores allowing water to enter the body cavity.

Multiple choice

What is the function of meristem (a plant tissue)?

  1. Transports food

  2. Mechanical strength

  3. Cell division

  4. Conduction of water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Meristematic tissue in plants consists of undifferentiated cells that are actively dividing, allowing for plant growth.

Multiple choice

What is the function of xylem (a plant tissue)?

  1. Transports food

  2. Mechanical strength

  3. Cell division

  4. Conduction of water
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Xylem is the specialized plant tissue that transports water and dissolved minerals from the roots to the rest of the plant. Phloem is responsible for transporting food.

Multiple choice

Which of the following is not true about 'Basement membrane'?

  1. It contains muco polysaccharides and glycoproteins

  2. The primary function is to anchor down the epithelium to its loose connective tissue (the dermis) underneath

  3. It is one layered

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

The basement membrane is a thin, fibrous, extracellular matrix of tissue that separates the epithelium (skin, respiratory tract, gastrointestinal tract, etc.), mesothelium (pleural cavity, peritoneal cavity, pericardial cavity, etc.) and endothelium (blood vessels, lymph vessels, etc.) from underlying connective tissue. It is bi-layered.

Multiple choice

What role do vagus nerve play?

  1. Saliva secretion

  2. Perform visceral reflexes

  3. Eye movement

  4. Taste
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vagus nerve plays role in visceral reflexes.