Page 443 - General Knowledge

GENERAL KNOWLEDGE 2019

175. In the stem of a plant respiration and breathing takes place through:
A. Lenticels
B. Stomata
C. Root hair
D. Air tubes

176. Which animal has three-chambered heart?
A. Pigeon
B. Lizard
C. Fish
D. Lion

177. Name the blood vessel which carries blood back to the heart?
A. Vein
B. Artery
C. Capillaries
D. Platelet

178. Transportation of food in plants takes place through:
A. Xylem
B. Phloem
C. Companion cells
D. Tracheids

179. After wound or cut in a body blood coagulates through:
A. WBC
B. RBC
C. Platelets
D. Plasma

180. When blood is forced into the artery, wave like expansion takes place is called:
A. Heart beat
B. Pulse
C. Flow
D. Ticking

181. What are the two main hormones secreted by Thyroid gland?
A. T3
B. T4
C. TSH
D. Both A and B

182. Too much release of thyroid hormone in the body causes:
A. Hypothyroidism
B. Hyperthyroidism
C. Goitre
D. None of the above

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