Biology - Mock Test 113

Question 1121

All arteries carry oxygenated blood, except ?

A) Pulmonary artery B) Renal artery C) Hepatic artery D) Cardiac artery

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Question 1122

Adrenaline directly affects ?

A) Oxyntic cells of stomach B) Sinoatrial node C) Islet of Langerhans D) Dorsal root ganglia of spinal cord

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Question 1123

A muscular wall is absent in ?

A) Capillary B) Vein C) Venule D) Arteriole

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Question 1124

A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues. This O2 ?

A) Helps in releasing more O2 to the epithelium tissues B) Acts as a reserve during muscular exercise C) Raises the pCO2 of blood to 75 mm of Hg D) Is enough to keep oxyhaemoglobin saturation at 96%

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Question 1125

Which one of the following statements is correct regarding blood pressure?

A) 190/110 mmHg may harm vital organs like brain and kidney B) 130/90 mmHg is considered high and requires treatment C) 100/55 mmHg is considered an ideal blood pressure D) 105/50 mmHg makes one very active

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Question 1126

Atherosclerosis refers to ailment of?

A) Kidney B) Heart C) Lungs D) Liver

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Question 1127

Total amount of living material at the various trophic levels of a food chain is depicted by pyramids of ?

A) Numbers B) Energy C) Biomass D) All of these

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Question 1128

Pheromones, the chemical messengers produced by certain exocrine glands of skin, affect ?

A) Skin color B) Breast C) Genitalia D) Mutual behaviour of members of a species

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Question 1129

Organisms that can tolerate and thrive in a wide range of temperatures are called ?

A) Eukaryotic organisms B) Stenothermal C) Eurythermal D) None of these

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Question 1130

Large Woody Vines are more commonly found in ?

A) Alpine forests B) Temperate forests C) Mangroves D) Tropical rainforests

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