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Quiz 12
Mdcat-past-papers - UHS - Biology Quiz
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Board: UHS | Subject: Biology |
221. In electron transport chain, NADH is oxidized by
Co-enzyme Q
Cytochrome b
cytochrome c
oxygen
222. If oxygen is available, the complete breakdown of glucose produces——— ATP molecules in prokaryotes:
201
36
38
40
223. The muscles of the stomach wall thoroughly mix up the food with gastric juice and the resulting semi-solid/semi-liquid is called:
Bolus
Bolus or chyme
Mucus
Chyme
224. Saliva is basically composed of water, mucus, amylase and:
Sodium bicarbonate
Sodium chloride
Sodium hydroxide
Hydrocarbons
225. Gastric glands are composed of ___ types of cells:
2
3
4
5
226. HCl in gastric juice is secreted by which of following cells:
Chief cells
Oxyntic cells
Mucus cells
Kupffer cells
227. Which enzyme is secreted in the active form?
Amylase
Lipase
Peptidase
Protease
228. Which is true about the cells found in gastric glands lining the stomach wall?
Chief cells secrete gastrin
Mucus cells secrete mucin
Hormone cells secrete intrinsic factor
Parietal cells secrete pepsinogen
229. Digestion of which food component start from oral cavity:
Proteins
Fats
Carbohydrates
Vitamins
230. Which of the following does not produce by pancreas?
trypsin
amylase
pepsin
lipase
231. Upon initial hydrolysis starch yields:
Maltose
Glucose
Sucrose
Mannose
232. In human gut, Chylomicrons are formed by the combination of:
Proteins and carbohydrates
Fats and carbohydrates
Fats and proteins
Vitamins and fat
233. Cells of stomach that lower the pH are:
zymogen cells
chief cells
Parietal cells
mucous cells
234. A person with a removed gall bladder experiences difficulty in fat digestion due to:
Absence of bile
Uncontrolled release of Bile
Reduced Alkalinity of bile
Absence of Bile pigments
235. What is the residual volume of air which always remain inside of human:
3.5 liter
0.5 liter
5 liter
1.5 liter
236. Which protein is present in walls of alveoli:
Fibrinogen
Collagen
haemoglobin
pepsin
237. During inspiration the space inside the chest cavity is increased due to :
Increased pressure
The relaxation of muscles of diaphragm
Relaxation of external intercostal muscles
Contraction of muscles of diaphragm
238. The respiratory surfaces exhibit following characteristic?
It must be permeable
It must be thick for low diffusion
It should be non-vascularized
It should have low ventilation mechanism
239. The pulmonary volume is an essential part of pulmonary ventilation. It depends upon :
Physical activity
Body volume
Body composition
Composition of air
240. About 70-85% CO2 in blood is carried :
As carboxylase myoglobin
With proteins in plasma
Freely as CO2
As bicarbonate
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