Transport of substances in animals and plants Worksheet-2

Transport of substances in animals and plants Worksheet-2

Multiple-Choice Questions:

13. The diagram represents a group of organs in the human body. Which of the following option is correct?

(a) 1-kidney, 2- urethra, 3-urinary bladder, 4- ureter

(b) 1-kidney, 2-ureter, 3- urethra, 4- urinary bladder

(c) 1-kidney, 2- urethra, 3- ureter, 4- urinary bladder

(d) 1-kidney, 2-ureter, 3-urinary bladder, 4-urethra

Which of the following best suits for the structures given in column Y?

(a) Sensory Receptors

(b) Structures Needed for Anaerobic Respiration

(c) Excretory Systems

(d) Structures Used in Gas Exchange

15. A paramoecium absorbs materials from its environment and circulates these materials throughout its cytoplasm. Which of the following life function is described by these activities?

(a) transport        (b) reproduction (c) synthesis       (d) respiration

16. The body cells of most multicellular animals are not in direct contact with the external environment. The exchange of gases in the body cells takes place by _____.

(a) sense receptors                          (b) circulatory system

(c) central nervous system             (d) hydrolytic enzymes

17. In human beings, gas exchange and gas transport occur as a result of the functioning of a system of:

(a) setae                                           (b) lenticels        

(c) ganglia                                        (d) lungs and blood vessels

Fill in the Blanks:

1. The organ system responsible for the removal of wastes is called the ______ system.
2. In multicellular organisms, the transportation is done by a specialized system known as the ______ system.
3. _______ is the medium for transport of all the necessary materials to different parts of the body.
4. The movement of molecules or gases from a region of higher concentration to a region of lower concentration is called _______.
5. Blood consists of several cells floating in straw-coloured liquid called________.
6. Haemoglobin combines with oxygen to form _______ which helps in transporting oxygen throughout the body.
7. Blood flows through our body in a complex system of tubes called blood _______.
8. ______ are the thinnest of the blood vessels and connect arteries to veins.
9. ______ carry blood from the heart to different parts of the body.
10. ______ carry blood to the heart.

True/False:

1. Blood consists of plasma, RBC, WBC and platelets.
2. Circulatory system consists of the heart and lymph vessels.
3. Several wastes are created inside a living body, which must be excreted for efficient functioning of the body and prevention of diseases.
4. Water and mineral nutrients are not absorbed by roots from the soil.
5. The vascular tissue for the transport of food to the various parts of the plant is xylem.
6. A lot of water is lost by plants in the form of vapour through stomata during transportation.
7. In most animals, the blood that circulates in the body distributes food and oxygen to different cells of the body and carries waste products to different parts of the body for excretion.

Answer key:

Multiple-Choice Questions:

13. (D)
14. (D)
15. (A)
16. (B)
17. (D)

Fill in the Blanks:

1. Excretory
2. Circulatory
3. Blood
4. Diffusion
5. Plasma
6. Oxyhaemoglobin
7. Vessels
8. Capillaries
9. Artery/arteries
10. Vein/veins

True/False:

1. T
2. F
3. T
4. F
5. F
6. F
7. T