Biology

Question 1

1The raw materials for photosynthesis are

Easy

A. oxygen and glucose B. starch and oxygen C. nitrogen and water D. carbon dioxide and water

Question 2

2The by-product of photosynthesis is

Easy

A. oxygen B. glucose C. carbon dioxide D. water

Question 3

3The enzyme in saliva that digests starch is

Easy

A. trypsin B. pepsin C. lipase D. amylase

Question 4

4The limiting factor of photosynthesis on a bright, cool day is most likely

Hard

A. temperature B. light intensity C. chlorophyll D. water

Question 5

5Lack of vitamin C causes

Easy

A. rickets B. night blindness C. beriberi D. scurvy

Question 6

6The emulsion test for fats uses

Hard

A. Benedict's solution B. ethanol then water, giving a milky emulsion C. biuret D. iodine

Question 7

7Bile is produced by the

Easy

A. pancreas B. gall bladder C. stomach D. liver

Question 8

8Organisms that obtain food from dead and decaying matter are

Easy

A. autotrophs B. saprophytes C. carnivores D. parasites

Question 9

9Most digested food is absorbed in the

Easy

A. colon B. ileum (small intestine) C. oesophagus D. stomach

Question 10

10Leaves are boiled in alcohol during a starch test in order to

Hard

A. add starch B. remove chlorophyll C. soften the cuticle only D. kill bacteria