LIFE PROCESS, BIOLOGY CLASS 10th.

      

    -:  Very Short Answer Questions :-

Q1. Name the Cellular organelle where the following processes occur
a) photosynthesis
b) cellular aerobic respiration.

Q2. What is the role of saliva in the digestion of food ?

Q3. What is the role of acid in our stomach ?

Q4. Give any two functions of stomata

Q5. which substance is absorbed in large intestine ?

Q6. what is the function of bile ?

Q7. what are the end products of anaerobic respiration in yeasts?

Q8. what are the end products of aerobic respiration ?

Q9. which equipment is used to facilitate breathing during serious breathing problem ?

Q10. Is there any partition between the root hair and the cell to which it is attached.

Q11. What is the total area for gaseous exchange in lungs of normal adult man ?

Q12. What is the vital capacity of lungs?

Q13. Name the conducting tissues of plant.

Q14. Write any important function of transpiration.

Q15. Where are hormones synthesised in plants ?

Q16. What is the other name of WBC ?

Q17. Where are the two kidneys located in human beings ?

Q18. What is the function of lymphocyte cells ?

Q19. What is the sites of water and minerals absorption in plants ?

Q20. Name the two kinds of cells in xylem.

Q21. State the term for transport of food from leaves to other parts of plants.

Q22. Name the system responsible for transportation of substances in human beings.

Q23. What is the meaning of double circulation ?

Q24. Name the procedure used in working of an artificial kidneys.

Q25. What happens to glucose which enters the nephron along with the filtrate ?

Q26. Where is urine is carried through the ureters ?

Q27. What do you mean by 'translocation' of nutrients in plants ?

                          -: Answer :- 

1.  a) Chloroplast 

b) mitochondria.

2. Saliva contains water, salts , mucin and enzyme ptyalin. The enzyme ptyalin is salivary amylase which splits starch and glycogen into maltose.

3. The acid (HCl) is secreted inside the stomach makes the medium acidic which is necessary for the activation of the enzyme pepsin.

 4. a) Gaseous exchange in respiration.

b) loss of water in the form of vapour in transpiration 

5. Water

6. Bile brings about the emulsification of fat.

7. Ethyl alcohol { C2H5OH }

8. carbon dioxide and water

9. Ventilator 

10. No. The root hair is the extension of epidermal cell

11. The two lungs of normal adult man possess about 300 million alveoli which have the total area for gas exchange of 36 to 72 square metre.

12. The amount of air inhaled and exhaled with maximum effort is called vital capacity of lungs. It is about 3.5 to 4.5 litres.

13.  xylem and phloem

14. transpiration helps in the upward movement of sap or water from roots to leaves. 

15.  in plants harmones are synthesized at the shoot and root tips

16. Leucocytes

17. Both the Kidneys are located towards the back of the lower part of the abdominal cavity, one on either side of the vertebral column.

18.  the lymphocyte cells fight against infection

19.  Water is absorbed by the root hair and Minerals are absorbed by root hairs and other epidermal cells near the root apex

20.  Tracheids and vessels.

21.  Translocation

22. Circulatory system 

23. Double circulation means the blood passes through the heart twice for each circuit of the body 

24. The procedure used in the artificial kidney in place of normal is called dialysis.

25. The glucose reabsorbed by blood capillaries surrounding the nephron.

26. Through ureters, the urine is carried from kidneys to urinary bladder.

27. Movement of organic nutrients from leaves to other parts of plant through living cells of phloem is called ' Translocation of nutrients '.

For some other important question and answer click the link  given below 

http://ajaytutorials.blogspot.in/2016/07/life-process-biology-class-10th.html?m=1