- Which of the statements given below are incorrect?
I. Chronic obstructive pulmonary disease refers to coryza.
II. Emphysema is an abnormal distension of bronchioles of
the lungs.
III. Fat is more suitable as a stored food than glycogen.
IV. Auerbach’s plexus present in submucosa layer of gut
controls peristalsis.
V. Brunner’s glands found in ileum, open into crypts of
Lieberkuhn.
(a) II and III only (b) I, II and V only
(c) I, III, IV and V only (d) I, IV and V only
- The ‘blue baby’ syndrome results from
(a) excess of dissolved oxygen
(b) excess of TDS (total dissolved solids)
(c) excess of chloride (d) methemoglobin.
- Match column I with column II and select the correct option.
Column I Column II
A. Pancreatic juice (i) Sodium bicarbonate ions
B. Saliva (ii) Nucleosidases
C. Intestinal juice (iii) Pepsinogen
D. Bile (iv) Trypsinogen
E. Gastric juice (v) Thiocyanate ions
(a) A-(v), B-(i), C-(iii), D-(iv), E-(ii)
(b) A-(iv), B-(v), C-(ii), D-(i), E-(iii)
(c) A-(ii), B-(iii), C-(i), D-(v), E-(iv)
(d) A-(iii), B-(v), C-(ii), D-(i), E-(iv)
- Which of the following options correctly depicts the sequence
of the respiratory organs involved during the process of
expiration?
(a) Bronchi → Alveoli → Trachea → Internal nares → Larynx
→ Pharynx → Nasal cavities → External nares
(b) Alveoli → Bronchi → Trachea → Larynx → Pharynx →
Internal nares → Nasal cavities → External nares
(c) Bronchi → Alveoli → Trachea → Pharynx → Larynx →
Internal nares → Nasal cavities → External nares
(d) Alveoli → Bronchi → Trachea → Pharynx → Nasal
cavities → Larynx → Internal nares → External nares
- Read the given statements and select the correct option.
Statement 1 : Pepsin can hydrolyse collagen and milk
proteins.
Statement 2 : Pepsin is a protease, functional at acidic pH.
(a) Both statements 1 and 2 are correct and statement 2 is
the correct explanation of statement 1.
(b) Both statements 1 and 2 are correct but statement 2 is
not the correct explanation of statement 1.
(c) Statement 1 is correct but statement 2 is incorrect.
(d) Both statements 1 and 2 are incorrect.
- Select the correct option with appropriate enzymes that
catalyse the following reactions.
(i) Starch → Maltose + Isomaltose + a-Dextrins
(ii) Casein → Paracasein + Whey proteins
(iii) Trypsinogen → Trypsin
(iv) Monoglycerides → Fatty acids + Glycerol
(i) (ii) (iii) (iv)
(a) Enterocrinin Pepsin Carboxype- Lactase
ptidase
(b) Pancreatic Rennin Enterokinase Lipase
a-amylase
(c) Salivary Pepsin Chymotrypsin Dextrinase
amylase
(d) Ptyalin Rennin Enterokinase Lipase
- Vital capacity of lungs is
(a) IRV + ERV (b) IRV + ERV + TV – RV
(c) IRV + ERV + TV + RV (d) IRV + ERV + TV.
- Identify the correct statement regarding gastrointestinal hormones.
(a) Gastrin increases bile secretion and release of
bicarbonates in pancreatic juice.
(b) Duocrinin stimulates pancreas to secrete digestive
enzymes.
(c) Somatostatin stimulates the secretion of glucagon.
(d) Enterocrinin stimulates the crypts of Lieberkuhn to release
enzymes into intestinal juice.
- The changes that occur in diaphragm and intercostal muscles
when expiration of air takes place are
(a) internal intercostal muscles relax and diaphragm contracts
(b) external intercostal muscles and diaphragm relax
(c) internal intercostal muscles contract and diaphragm relaxes
(d) external intercostal muscles and diaphragm contract.
- The diagram shows part of the human alimentary canal.
Which two structures produce substances involved in the
digestion of fat?
(a) A and E
(b) B and D
(c) C and E
A
B
C
D
E
(d) D and E
- Read the given statements and select the incorrect one.
(a) pH of the blood decreases as CO 2 content increases.
(b) Stem cells present in gastric glands help in healing
damaged gastric epithelium by multiplying and replacing.
(c) Kupffer cells are phagocytic in nature and eat worn out
WBCs, RBCs and bacteria.
(d) Partial pressure of oxygen of inspired air is about 95 mm Hg.
- When CO 2 concentration in blood increases, breathing becomes
(a) shallower and slow (b) faster and deep
(c) slower and deep (d) there is no effect on breathing.
- What is common among amylase, rennin and trypsin?
(a) All are produced in stomach
(b) All act at a pH lower than 7
(c) All are proteins (d) All are proteolytic enzymes
- Calculate the volume of air that remains in lungs after normal
expiration from given values :
TV = 500 mL, ERV = 1000 mL
IRV = 2700 mL, RV = 1200 mL.
(a) 3900 mL (b) 1500 mL
(c) 2200 mL (d) 3200 mL
