NEET Biology Life Processes Life Process MCQs Set A

Question. Human beings are –
(a) Omnivorous
(b) Herbivorous
(c) Carnivorous
(d) Autotrophic

Answer: A

Question. Gastric juice is –
(a) Acidic
(b) Alkaline
(c) Neutral
(d) Slightly alkaline

Answer: A

Question. Bile is produced and secreted by –
(a) Gall bladder
(b) Pancreas
(c) Spleen
(d) Liver

Answer: D

Question. The main function of intestinal villi is –
(a) Stimulate peristalsis
(b) Prevent antiperistalsis
(c) Provide large surface area for absorption
(d) Distribute digestive enzymes uniformly.

Answer: C

Question. Major function of HCl of gastric juice is –
(a) Providing acidic medium for pepsin
(b) Kill microoganisms
(c) Dissolve food
(d) Facilitate absorption of food

Answer: A

Question. The end product of fat digestion is –
(a) Glucose
(b) Fatty acids and Glycerol
(c) Amino acids
(d) Alkaloids

Answer: B

Question. The action of bile can be called –
(a) Oxidation
(b) Emulsification
(c) Esterification
(d) Dehydrogenation

Answer: B

Question. Saliva converts –
(a) Proteins into amino acids.
(b) Glycogen into glucose
(c) Starch into maltose
(d) Fats into vitamins

Answer: C

Question. Which set is mixed with the food in small intestine?
(a) Saliva, gastric juice, bile
(b) Gastric juice, bile, pancreatic juice
(c) Bile, pancreatic juice, succus entericus
(d) Bile, pancreatic juice and saliva

Answer: C

Question. A good source of lipase is –
(a) Saliva
(b) Gastric juice
(c) Bile
(d) Pancreatic juice.

Answer: D

Question. Ptyalin is an enzyme present in –
(a) Gastric juice
(b) Pancreatic juice
(c) Intestinal juice
(d) Saliva

Answer: D

Question. Which one does not produce any digestive enzyme?
(a) Pancreas
(b) Liver
(c) Stomach
(d) Duodenum

Answer: B

Question. The number of salivary glands present in human beings is –
(a) 5 pairs
(b) 4 pairs
(c) 3 pairs
(d) 2 pairs

Answer: C

Question. Largest gland in the body is –
(a) Liver
(b) Pancreas
(c) Gastric gland
(d) Adrenal

Answer: A

Question. CO₂ and O₂ balance in atmosphere is due to
(a) Photorespiration
(b) Photosynthesis
(c) Respiration
(d) Leaf anatomy

Answer: B

Question. During photosynthesis the oxygen in glucose comes from
(a) Water
(b) Carbon dioxide
(c) Both from water and carbon dioxide
(d) Oxygen in air

Answer: A

Question. With regards to natural eating habits, a human is
(a) An herbivore
(b) A carnivore
(c) An omnivore
(d) A Granivore

Answer: C

Question. Muscular contractions of alimentary canal are
(a) Circulation
(b) Deglutition
(c) Peristalsis
(d) Churning

Answer: C

Question. Which of the following regions of the alimentary canal of man does not secrete a digestive enzyme ?
(a) Oesophagus
(b) Stomach
(c) Duodenum
(d) Mouth

Answer: A

Question. Saliva has the enzyme
(a) Pepsin
(b) Ptyalin
(c) Trypsin
(d) Rennin

Answer: B

Question. Pepsin digests
(a) Proteins in stomach
(b) Carbohydrates in duodenum
(c) Proteins in duodenum
(d) Fats in ileum

Answer: A

Question. If the stomach did not produce any hydrochloric acid, which enzyme will not function ?
(a) Ptyalin
|(b) Trypsin
(c) Pepsin
(d) Collagenase

Answer: C

Question. Chief function of bile is
(a) To digest fat by enzymatic action
(b) To emulsify fat for digestion
(c) To eliminate waste product
(d) To regulate process of digestion

Answer: B

Question. Where is bile produced ?
(a) In gall bladder
(b) In blood
(c) In liver
(d) In spleen

Answer: C

Question. Largest gland in human body is
(a) Liver
(b) Pancreas
(c) Pituitary
(d) Thyroid

Answer: A

Question. The original function of the vertebrate stomach was
(a) Storage
(b) Digestion
(c) Enzyme secretion
(d) Absorption

Answer: A

Question. Prorennin occurs in
(a) Saliva
(b) Gastric juice
(c) Pancreatic juice
(d) Intestinal juice

Answer: B

Question. Enterokinase is found in
(a) Saliva
(b) Gastric juice
(c) Pancreatic juice
(d) Intestinal juice

Answer: D

Question. HCI of gastric juice is produced by
(a) Chief cells
(b) Oxyntic cells
(c) Goblet cells
(d) Columnar cells

Answer: B

Question. Bile is released by
(a) Gastrin
(b) Secretin
(c) Cholecystokinin
(d) Enterocrinin

Answer: C

Question. The digestion of food starts in the mouth where starch is converted into sugar by the action of
(a) Pepsin
(b) Trypsin
(c) Ptyalin
(d) Sucrase

Answer: C

Question. Digestion is accomplished by a chemical process called
(a) Condensation
(b) Hydrolysis
(c) Deamination
(d) Transamination

Answer: B

Question. Which of the following organs are not directly connected to each other?
(a) Oesophagus-stomach
(b) Buccal cavity-stomach
(c) Colon-rectum
(d) Stomach-duodenum

Answer: B

Question. The major anion present in the pancreatic juice obtained through the stimulation of secretin is
(a) Chloride
(b) Bromide
(c) Phosphate
(d) Bicarbonate

Answer: D

Question. Chylomicrons that enter the lacteals are composed of –
(a) Triglycerides alone
(b) Triglycerides around a protein core
(c) Protein coat around triglycerides
(d) Proteins alone

Answer: C

Question. Vitamin K is required for
(a) Change of prothrombin to thrombin
(b) Synthesis of prothrombin
(c) Change of fibrinogen to fibrin
(d) Formation of thromboplastin

Answer: B