Biology Quiz on Human and Plant Systems

Which of the following represents organs A and B?

• Heart, Lung

• Lung, Heart

• Heart, Leg muscle

• Leg muscle, Lung

The diagram below shows a human body system. Arrows A, B, C, D and E represent the movement of blood in part of the system. Which arrows in the diagram do not represent the correct movement of blood?

• A and D only

• B and C only

• B and E only

• C and E only

Which of his statement(s) is/are correct?

• C only

• A and B only

• B and C only

• A, B and C

The table below shows John's breathing rate at different times of the day. Which of the statements explains why John's breathing rate increased between 12pm and 1pm?

• He needed to take in more carbon dioxide as he could be sleeping.

• He needed to take in more oxygen as he could be running in a race.

• He needed to take in more oxygen as he could be resting after a run.

• He needed to take in less oxygen as he could be cooling down after a run.

. Which of the following correctly shows where digestion of food starts and absorption of food take place?

• A, B

• C, D

• B, D

• A, C

The diagram shows the direction of blood flow in certain parts of the body. Which statement(s) is/are correct?

• A only

• C only

• A and B only

• B and C only

The potato in beaker B took a longer time to digest because it has _____________.

• more volume

• lesser volume

• more exposed surface area

• lesser exposed surface area

The diagram below shows a plant. Some made the following statements about the main functions of the part labelled X. Student Statement A It supports the leaves and the flowers. B It makes food for the plant. C It takes in water and mineral salts from the soil. D It helps to transport water from the roots to other parts of the plant. Which pair of students had made the correct statements?

• A and B only

• A and D only

• B and C only

• C and D only

The diagram shows a plant growing around a pole. Based on the diagram only, describe the function of part Z.

• It develops into a fruit.

• It absorbs water for the plant.

• It traps light to make food for a plant.

• It climbs upwards for the plant to grow towards light.

Which of the following is correct?

• Air escapes through openings found on both surfaces of the leaf.

• Bubbles form in the water and land on the upper surface of the leaf.

• The leaf has openings on the lower surface but not its upper surface.

• Air enters the lower surface of the leaf and escapes through its upper surface.