Life process in Animals and Plants – Online MCQs Test – Biology MCAT

1. Transpiration occurs through

Roots

Leaves

All aerial parts

Stem

2. It is about 2.4 meter in length and comprising about two fifth of the small intestine

Duodenum

Caecum

jejunum

lleum

3. Cardiac output signifies.

The amount of blood leaving the heart per unit time

The amount of blood entering the lung per unit time

The amount of blood leaving the lung per unit time

The amount of blood entering the heart per unit time

4. Bile is secreted in

Duodenum

Gall bladder

Liver

Pancreas

5. Root pressure is maximum when

Transpiration is very low and absorption is high.

Both transpiration and absorption are slow.

Transpiration is very high and absorption is also high.

Transpiration is high and absorption is very low.

6. _______is a detritivore.

Parrot

Cattle

Human being

Earthworm

7. Antibodies are

Responsible for raising body temperature when you are ill

Specific

Plasma cells

Memory cell

8. Exchange of gases between blood and alveolar air in lungs occurs by:

Active transport

Simple diffusion

All of these

Osmosis

9. Which one is an inorganic nutrient?

Calcium

Cellulose

Vitamin

Protein

10. __________ is present in foregut.

Pharynx

Gizzard

Crop

All of them

11. In trees, death of protoplasts is essential for a vital function such as

Stomatal movements

Water transport

Food transport

water and food transport

12. Na+, K+ dependent ATPase activity helps in the transport of

K+ outward, Na+ inward

K+ inward only

K+ inward. Na+ outward

Na inward only

13. Rectum is terminal part of

Hindgut

Midgut

None of them

Foregut

14. The epithelium is only — celled thick.

four

Three

One

two

15. Planaria egests indigestible food through

Flame cells

Nephridia

Anus

Mouth

16. Autotrophic organisms produce organic compounds by

H₂O

Nitrates

All of them

CO₂

17. All of the following are correct about the immune system EXCEPT

T lymphocytes release antibodies

The first line of defense is nonspecific

The second line of defense is nonspecific

Release of histamine is responsible for the inflammatory response

18. An illness which largely affects girls usually just after the onset of puberty.

Bulimia nervosa

None of these

Obesity

Anorexia nervosa

19. Absorption of water by root is increased by

Increase in transpiration

Increase in the rate of photosynthesis

Decrease in salt uptake?

Decrease in transpiration

20. Which of the following statements is correct about the heart?

The right atrium receives oxygenated blood from the lungs.

The right ventricle pumps blood to the aorta.

The left ventricle pumps blood to the entire body.

The left ventricle pumps blood to the entire body and right atrium receives oxygenated blood from the lungs

Life process in Animals and Plants (nutrition/ gaseous exchange/ transport)-Medical College Admission Test Preparation Notes