Q. The carbon and energy requirements of an autotrophic organism are fulfilled by -
1) locomotion
2) photosynthesis
3) respiration
4) glycogenation
Q. How many arteries are there in an umbilical cord?
1) Three
2) Four
3) One
4) Two
Q. In the human body, Glucose is stored in the form of -
1) Starch
2) Glycogen
3) Fructose
4) Maltose
Q. It is the hardest substance in the human body -
1) Keratin
2) Bone
3) Tooth Enamel
4) Amino acid
Q. Which of the following vegetables is not a root?
1) Potato
2) Carrot
3) Radish
4) Turnip
Q. Which one is a water soluble vitamin?
1) Vitamin A
2) Vitamin B1
3) Vitamin D
4) Vitamin E
Q. Which of the following chemicals is released during allergic reactions?
1) Hapten
2) Histamine
3) Heparin
4) Sulphuric acid (H2SO4)
Q. The smallest plants on the earth are the -
1) Ferns
2) Algae
3) Fungi
4) Bacteria
Q. Blood corpuscles which help in blood clotting at the site of injury are -
1) RBCs
2) WBCs
3) Platelets
4) Eosinophils
Q. Movement of food through oesophagus is due to -
1) lubrication by saliva
2) peristalsis
3) gravitational pull
4) filtration
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