Biology

Human Physiology and Anatomy

2,235 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 botany kingdom plantae introduction to pteridophytes cryptogams pteridophyta pteridophytes

Function of vascular tissue is 

  1. To conduct water

  2. To conduct food, salts, minerals

  3. To provide strength

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vascular tissues are also known as conductive tissue, they help to conduct water and other substances from one part of the plant body to another. For example, ferns contain two types of vascular tissue, xylem and phloem, which move nutrients throughout the plant and allow them to grow tall. 

Multiple choice

What is the purpose of nuclear pores?

  1. It prevents material from entering the nucleus.

  2. It allows DNA to leave the nucleus and enter the cytoplasm.

  3. It allows DNA to replicate.

  4. It allows material to move in and out of the nucleus.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nuclear pores are protein channels in the nuclear envelope that regulate the exchange of molecules, such as RNA and proteins, between the nucleus and the cytoplasm.

Multiple choice

What is the function of a lysosome?

  1. help organize cell division

  2. store materials in the cell

  3. modify, sort and package proteins and other cell materials

  4. break down macromolecules and non-functioning organelles
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Lysosomes contain digestive enzymes that break down waste materials, cellular debris, and foreign substances. They are essentially the recycling centers of the cell.

Multiple choice

What function do alveoli perform?

  1. the exchange of lymph between air and lymph nodes

  2. the exchange of blood between the heart and lungs

  3. the exchange of gases between the lungs and the bloodstream

  4. the removal of water from oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alveoli are the sites where oxygen enters the bloodstream and carbon dioxide leaves the bloodstream through the process of diffusion.

Multiple choice

Which of the following best describes the function of respiration?

  1. to break food down into smaller nutrients

  2. to eliminate pathogens from the blood

  3. to obtain oxygen & release carbon dioxide

  4. to remove wastes from the bloodstream
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Respiration is the physiological process of gas exchange, specifically taking in oxygen for cellular use and expelling carbon dioxide as a waste product.

Multiple choice

Which answer best describes the function of the circulatory system?

  1. it removes wastes from cells & delivers nutrients to cells

  2. it breaks down nutrients in foods for cell use

  3. it produces chemicals that allow the body to communicate

  4. it coordinates all body parts to achieve homeostasis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary function of the circulatory system is to transport oxygen, nutrients, and hormones to cells while removing waste products like carbon dioxide.

Multiple choice

Appetite is controlled by a centre in the:

  1. Stomach

  2. Hypothalamus

  3. Pituitary gland

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

The hypothalamus is the region of the brain that acts as the control center for many homeostatic processes, including the regulation of hunger and satiety.

Multiple choice

A group of related tissues that perform a specific function like breathing is called?

  1. tissue

  2. organelle

  3. organ

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

An organ is a structure made up of different types of tissues working together to perform a specific, complex function. For example, the lungs are organs composed of epithelial, connective, and muscular tissues that work together to facilitate breathing. Organelles are smaller structures inside cells, while tissues are groups of similar cells.

Multiple choice

How much of the human brain is water?

  1. 35%

  2. 75%

  3. 90%

  4. 48%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The human brain is composed of approximately 73% to 80% water. Among the given options, 75% is the most accurate representation of this composition.

Multiple choice

What does the ciruclatory system do?

  1. Used to breakdown food, absorb nutrients and remove waste

  2. Used to bring oxygen into the body and remove carbon dioxide

  3. Takes food & oxygen cells and carry waste away from cells

  4. Used to transmit nerve impulses between parts of the body.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The circulatory system is responsible for transporting oxygen, nutrients, and hormones to cells throughout the body, as well as carrying away metabolic waste products like carbon dioxide. Other systems, such as the digestive and respiratory systems, handle food breakdown and gas exchange with the external environment.

Multiple choice

What two body systems work together to produce movement?

  1. Circulatory and skeletal

  2. Respiration and nervous

  3. Muscular and digestive

  4. Skeletal and muscular
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The skeletal system provides the rigid framework, joints, and support for the body, while the muscular system provides the contracting force needed to move these bones. Together, they form the musculoskeletal system to enable physical movement.