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 biology simple nutrients into cells blood and its components components of blood composition of blood

The major function of alpha and beta globulins in the plasma is

  1. They develop colloidal osmotic pressure

  2. Help in immune response

  3. Act as antigens

  4. Act as carrier proteins
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alpha and beta globulins function as enzymes and proteins that transport compounds in the body. Gamma globulins act as the antibody defence against antigen invasion. Beta globulins are also manufactured mostly in the liver. 

So the correct option is 'Act as carrier proteins'.

Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

From the following terms, choose one term which includes the other four.

  1. Plasma

  2. Platelets

  3. Blood

  4. RBC

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

Blood is a fluid connective tissue that encompasses plasma, platelets, red blood cells (RBC), and white blood cells (WBC) as its components. Therefore, blood is the overarching term that includes all the other four options.

Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

The matrix of the plasma contains

  1. Water and Salts

  2. Blood cells

  3. Only platelets

  4. Only RBCs and WBCs
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plasma is the extracellular matrix which holds the blood cells. It makes 55 percent of the total blood volume. It consists of 95% of water and 8% of proteins. The protein like serum albumins, globulins, fibrinogen etc. In addition, it also contains glucose, electrolytes and clotting factors. Thus, the correct answer is option A.

Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

Which of these is/are inactive forms
(i) Fibrin (ii) Fibrinogen (iii) Thrombin (iv) Prothrombin (v) Thrombokinase

  1. v only

  2. i and iii only

  3. i and ii only

  4. iii and v only

  5. ii and iv only.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Fibrinogen and prothrombin are inactive precursors (zymogens) circulating in the blood plasma that are activated during the clotting cascade.

Multiple choice biology simple nutrients into cells blood and its components components of blood composition of blood

What does blood consists of?

  1. 60% plasma, 40% corpuscles

  2. 40% plasma, 60% corpuscles

  3. 25% plasma, 75% corpuscles

  4. 90% plasma, 10% corpuscles
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plasma is the fluid component in which the blood cells are suspended. These blood cells include 

Red blood cells (erythrocytes) - carry oxygen from the lungs to the rest of the body. 
White blood cells (leukocytes) - help fight infections and aid in the immune process. 
Platelets (thrombocytes) - help in blood clotting. 
Whole blood contains red cells, white cells, and platelets (~45% of volume) suspended in plasma (~55% of volume). Thus, option A is correct.

Multiple choice biology control and co-ordination in plants and animals movements in plants coordination in plants tropic and nastic movements in plants

The term synergistic action of hormones refers to

  1. When two hormones act together but bring about opposite effects.

  2. When two hormones act together and contribute to the same function.

  3. When one hormone affects more than one

  4. When many hormones bring about any one function.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Growth, differentiation and development processes of plants are found to be regulated by two or more phytohormones acting synergistically or antagonistically, e.g. cell division is promoted by both auxins and cytokinins acting synergistically. Cell growth is controlled by auxins, gibberellins, and cytokinins. Morphogenesis is an interplay of auxins and cytokinins, where both must be present in some minimum concentration.
So the correct answer is 'When two hormones act together and contribute to the same function.'.
Multiple choice zoology endocrine system and chemical co-ordination gastrointestinal tract and liver hormones of heart, kidney, liver and gastrointestinal tract coordination in human beings- chemical control

The function of enterogastrone hormone is

  1. To control excretion

  2. To inhibit gastric juice secretion

  3. Regulate the absorption of food

  4. To stimulate gastric glands to release gastric juice
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Enterogastrone is a hormone secreted by the duodenal mucosa, when fatty food is in the stomach or small intestine; it is also released, when sugars and proteins are in the intestine. Enterogastrone is transported by the bloodstream to the glands and muscles of the stomach, where it inhibits gastric movements and secretions, by blocking the production or activity of gastrin.

Multiple choice zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

What is the main function of vaccine ?

  1. Kill the microbes

  2. Destroy the affected organ

  3. Suppress the microbes

  4. Stimulate the body's immune system
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vaccines stimulate the body's own immune system to protect the person against subsequent infection or disease. As vaccines contains heat killed microbes which are able to stimulate immune system. Therefore, (d) is the correct answer.

Multiple choice

What is the primary function of carbohydrates in sports nutrition?

  1. Building and repairing muscle tissue

  2. Providing energy during exercise

  3. Regulating fluid balance in the body

  4. Supporting immune function
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Carbohydrates are the primary source of energy for the body during exercise. They are broken down into glucose, which is then used by muscles for energy.

Multiple choice

What is the primary role of nutrition in sports performance?

  1. Providing energy during exercise

  2. Building and repairing muscle tissue

  3. Regulating fluid balance in the body

  4. Supporting immune function
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nutrition plays a vital role in sports performance by providing energy during exercise, building and repairing muscle tissue, regulating fluid balance in the body, and supporting immune function.

Multiple choice

What is the primary function of Vitamin A in the human body?

  1. Maintaining healthy vision

  2. Boosting the immune system

  3. Promoting bone growth

  4. Regulating blood sugar levels
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin A is essential for maintaining healthy vision, particularly night vision.

Multiple choice

What is the main role of Vitamin C in the human body?

  1. Promoting wound healing

  2. Supporting immune function

  3. Regulating blood pressure

  4. Maintaining bone density
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vitamin C plays a vital role in promoting wound healing and maintaining healthy connective tissue.