Life Processes Worksheet-42

Life Processes Worksheet-42

Multiple Choice Questions:

11. What is the amount of urine formed in a normal person per day?

(a) 10 litre         (b) 6-7 litre       (c) 3-5 litre        (d) 1.5-2 litre

12. What is the process of urination called?

(a)  Excretion   (b) Dialysis        (c) Micturition (d) None

13. Right kidney is slightly lower than the left one due to presence of

(a)  Liver                                        (b) Pancreas

(c) Stomach                                   (d) Vertebral column

14. Lenticels are found in :

(a) Bark of the trees                     (b) Mesophyll of leaf

(c) Epidermis of roots                 (d) None of the above

15. Excess proteins are converted into urea in

(a) lungs             (b) liver              (c) kidneys         (d) intestine

16. The smallest functional unit of the kidney is

(a) glomerulus                              (b) Bowman's capsule

(c) nephron                                    (d) collecting tubule

17. In leaves, excretion of waste material occurs through which of the following parts?

(a) Epidermis                                (b) Cuticle

(c) Guard cells                               (d) stomata

18. Excretion of various materials in plants may occur via: -

(a) Transpiration                          (b) Wilting

(c) Photorespiration                     (d) All of the above

19. Gaseous waste in plants is:

(a) Oxygen during daytime, carbon dioxide during night time.

(b) Oxygen during night time, carbon dioxide during day time.

(c) Always Oxygen

(d) Always carbon dioxide

20. Excretion commonly involves

(a) Removal of all by-products during catabolism.

(b) Removal of by-product during metabolism.

(c) Removal of nitrogenous waste.

(d) All of the above.

Answer:

11. (d)

12. (c)

13. (a)

14. (a)

15. (b)

16. (c)

17. (d)

18. (d)

19. (a)

20. (c)