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

1. A cell placed in strong solution will shrink because

Water comes out by ex-osmosis

Mineral salt will break the cell wall

Salt Water enter the cell

Cytoplasm will decompose

2. Which of the following statements is false?

Blood from the right side of the heart is carried to the lungs by the pulmonary artery.

The term pleura refers the double layered covering of the kidney.

Scurvy is caused by the deficiency of vitamin C.

Pancreas is both an exocrine and endocrine gland.

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

K+ outward, Na+ inward

K+ inward. Na+ outward

K+ inward only

Na inward only

4. The lacteal is found in the _________ and is involved with _______

Villi the absorption of fatty acids

Colon; the reabsorption of water

Stomach: release of hormones

Duodenum: hydrolysis of lipids

5. Stomata communicates with the spaces present between

Xylem

All of them

Phloem

Mesophyhll

6. The opening between the right atrium and the right ventricle is guarded by a valve called _x_, whereas _y guards the opening of the left atrium and the left ventricle

x is bicuspid valve, y is semilunar valve

x is tricuspid valve, y is bicuspid

x is bicuspid valve, y is tricuspid valve

x is semilunar valve, y is tricuspid valve

7. A pair of insectivorous plants is

Nepenthes and Bladderwort

Dionaea and Viscum

Venus fly trap and Rafflesia

Drosera and Rafflesia

8. Function of gall bladder is:

Formation of enzymes

Formation of bile salts

Storage of bile

Production of bile

9. The element required by plants in large quantity is

Calcium

Nitrogen

Phosphorus

Sulphur

10. Food is moved along the cavity of alimentary canal by

None of them

Anti-peristalsis

Peristalsis

Hunger contractions

11. Hepatic and Pancreatic secretions are also stimulated by a hormone produced by the intestinal mucosa. The hormone is

Secretin

Pepsin

Creatin

Gastrin

12. Thin walled ducts present in birds are called

Bronchioles

Bronchi

Tracheoles

Parabronchi

13. Cells absorb water by

Diffusion

Osmosis and imbibition

Osmosis

Imbibition alone

14. Of the processes which occur in leaves, the one which may lower their temperature (cooling effect) is

hydrolysis

Photosynthesis

Respiration

Transpiration

15. Part of the alimentary canal that does not secrete any digestive enzyme:

Oesophagus

Stomach

Oral cavity

Duodenum

16. Parts of alimentary canal that act both as exocrine and endocrine gIands

Bucca cavity and oesophagus

Stomach and pancreas

Liver and pancreas

Duodenum and stomach

17. Mastication is carried out by:

Smooth muscles

Tongue

All of these

Teeth

18. Which prevent trachea from collapsing

Ribs

Cartilaginous rings

Diaphragm.

Muscles

19. The site/s where most of the uptake of water and minerals take place is/are

Root hairs

None of these

Underground stern

Root cells

20. Choose the schematic diagram which properly represents pulmonary circulation in humans

Left atrium → Lungs → Right ventricle

Right ventricle → Lungs → Left atrium

Left atrium → Lungs → Right ventricle

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