Biology

Question 1

1Wave-like muscle movement of the gut is ___.

Easy

Your answer (fill in the blank)

Question 2

2Which nutrient is the main source of energy?

Easy

A. protein B. mineral salt C. vitamin D. carbohydrate

Question 3

3A herbivore has longer intestines than a carnivore.

Easy

A. True B. False

Question 4

4Bile contains digestive enzymes.

Medium

A. True B. False

Question 5

5Bile helps to

Easy

A. digest starch B. absorb water C. digest proteins D. emulsify fats

Question 6

6The liver stores glycogen.

Easy

A. True B. False

Question 7

7Roughage is important because it

Easy

A. prevents constipation B. provides energy C. makes bones strong D. builds muscle

Question 8

8Villi are adapted for absorption because they have

Easy

A. a large surface area and a good blood supply B. no capillaries C. thick walls D. mucus glands only

Question 9

9Vitamin A deficiency causes

Easy

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

Question 10

10Marasmus is caused by

Easy

A. lack of iodine B. lack of vitamin C C. too much sugar D. a lack of all food (energy and protein)