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 function of Trypsin is to

  1. break down fats

  2. synthesize proteins

  3. break down proteins

  4. break down carbohydrates
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Trypsin is a proteolytic enzyme produced in the pancreas that specifically breaks down proteins into smaller peptides and amino acids during digestion. It does not act on fats or carbohydrates, and its role is catabolic (breaking down), not anabolic (synthesizing).

Multiple choice

What is the function of liver?

  1. It produces bile juice.

  2. It produces the enzyme 'ptyalin'.

  3. It produces the enzyme 'rennin'.

  4. It helps in pushing the bulk of food into the alimentary canal.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

.

Multiple choice

Which of the following is not a function of the blood in human body?

  1. It regulates the temperature of body.

  2. It helps in the blood-clotting.

  3. Blood helps the body against infection.

  4. It carries away waste products.

  5. None of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as all of the above are the function of blood in human body.

Multiple choice

Which of the following is not a function of E. coli?

  1. Production of human insulin

  2. Scavenging of oil spills

  3. Production of human growth factor interferons

  4. Production of interleukin

  5. Making of SPP (single protein production)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pseudomonas putida is used for this purpose.

Multiple choice

Iron is an extremely important transition metal in biology. It helps to perform many different biological functions such as

  1. transport of O2 to tissues
  2. release of O2 to muscle cells
  3. cofactor to some enzymes

  1. Only 1

  2. Only 2

  3. Only 3

  4. Only 1 and 2

  5. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Hemoglobin is an iron containing oxygen transport metalloprotein, which transports O2 from the lungs to the tissues. Myoglobin, an iron containing protein in muscle, receives oxygen from the red blood cells and transports it to the mitochondria of muscle cells. Many enzymes vital to life contain iron, such as catalase, lipoxygenases, and IRE-BP.

Multiple choice

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

  1. They possess lymphocytes.

  2. They protect the body from various diseases.

  3. They equalise the body temperature.

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

This is correct. It possesses lymphocytes. It protects the body from various diseases. It equalises the body temperature.

Multiple choice

Which of the following function is not performed by the cuticle?

  1. Preventing water loss

  2. Protecting from injury

  3. Protecting from attack of pathogen

  4. Storing food

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

The cuticle is a waxy, protective layer covering the epidermis of leaves and stems. Its main functions are to minimize water loss and provide a barrier against physical damage and pathogens. Storing food is a function of specialized cells like parenchyma, not the non-cellular cuticle layer.

Multiple choice

The function of Trypsin is to

  1. break down fats

  2. synthesize proteins

  3. break down proteins

  4. break down carbohydrates
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Trypsin is a digestive enzyme produced in the pancreas that breaks down proteins into smaller peptides in the small intestine. It is essential for protein digestion. It does not synthesize proteins or break down fats or carbohydrates.

Multiple choice

Which of the following is not a function of the blood?

  1. Transport of nutrition

  2. Regulation of body temperature

  3. Maintenance of water balance

  4. Regulation of vitamin metabolism

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood functions include transporting nutrients, oxygen, and waste, regulating body temperature, and maintaining pH balance. It does not play a direct role in the regulation of vitamin metabolism.

Multiple choice

Which is the function of white blood corpuscles?

  1. To produce anti-toxin

  2. To carry excretory meterial

  3. To carry oxygen

  4. To carry microbes that cause disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

White blood cells (leukocytes) are essential components of the immune system. They protect the body by producing anti-toxins and antibodies to neutralize pathogens and by engulfing foreign particles.

Multiple choice

Which of the following is the function of pericardial fluid?

  1. Protection against infections

  2. Protects heart from injury and against friction

  3. Keeps the heart moist and protects it from external shocks

  4. Provides nutrition to the heart cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pericardial fluid keeps the heart moist and protects it from external shocks and friction at the time of bleeding.

Multiple choice

All of the following are functions of circulatory system, except

  1. transport of nutrients, waste products, hormones and metabolic intermediates

  2. transport of respiratory gases

  3. gaseous exchange

  4. protection from diseases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gaseous exchange is a function of respiratory system. It happens by the phenomenon of breathing.