Life Processes In Living Organisms Part - 1 DPP 1 (QUESTION BANK)

 

Life Processes In Living Organisms Part - 1

       (QUESTION BANK)   DPP 1                        

  

                         Q.1. Match the following:

 

(1)	Column A		Column B
	(1)	Aerobic respiration	(a)	Nuclear division
	(2)	Anaerobic respiration	(b)	Oxygen is involved
	(3)	Karyokinesis	(c)	Cytoplasmic division
	(4)	Cytokinesis	(d)	Oxygen is not involved

                                Ans. (1 – b), (2 – d), (3 – a), (4 – c)

 

(2)	Column A		Column B
	(1)	Formation of spindle fibres	(a)	Prophase
	(2)	Sister chromatids are pulled apart	(b)	Telophase
	(3)	Nuclear membrane and nucleolus reappear	(c)	Metaphase
	(4)	Centrioles duplicate and move to opposite poles	(d)	Anaphase

                   Ans. (1 – c), (2 – d), (3 – b), (4 – a)

 

(3)	Column A		Column B
	(1)	Actin and Myosin	(a)	Pancreas
	(2)	Ossein	(b)	Skin
	(3)	Insulin	(c)	Bones
	(4)	Melanin	(d)	Muscles

                               Ans. (1 – d), (2 – c), (3 – a), (4 – b)

 

 

 

Q.2 .   State whether the following statements are True    or False. Correct the false statements:

(1)        Only food stuff is sufficient for energy production.

(2)        Process of glycolysis occurs in cyloplasm.

(3)        Amino acids are obtained after digestion of proteins.

(4)        Meiosis occurs in somatic cells and stem cells of the body.

(5)        Nucleolus does not appear in each daughter nucleus.

(6)        Meiosis II is just like mitosis.

(7)        We get 9 Kcal of energy per gram of carbohydrates.

(8)        Tricarboxylic acid cycle (Kreb’s cycle) occurs in mitochondria.

(9)        Glycolysis is also called Kreb’s cycle.

(10)   During anaerobic respiration of muscles, citric acid accumulates in the muscles due to which we feel tired.

(11)   Glucose is incompletely oxidised in anaerobic respiration.

(12)   Proteins of plant origin are called as first class proteins.

(13)   Excess of amino acids obtained from proteins are not stored in the body.

(14)   We get 4 Kcal of energy per gram of lipids.

(15)   Each cell contains 50% water by weight.

(16)   Blood plasma contains 90% of water.

                         (17)   Vitamins B and C are water - soluble vitamins.

                         (18)   We can digest fibres.

(19)   2 molecules of ATP are obtained from each FADH2 molecule.

(20)   Before cell division, the cell doubles up its chromosome number.

(21)   All chromosomes are arranged parallel to the equatorial plane of the cell in anaphase.

(22)   Condensation of thin thread - like chromosomes starts in telophase.

                                (23)   Sister chromatids are pulled apart in metaphase.

(24)   Plant cell divides by formation of a notch at the equatorial plane of the cell.

(25)   Seeds perform anaerobic respiration if the soil is submerged under water.

 

 

                   ANSWER                   

1.  False:- Only food stuff is not sufficient for energy production, but oxygen is also necessary.

2.      True

3.  True

4.     False:- Meiosis occurs in germ cells.

5.      False.:- Nucleolus also appears in each daughter nucleus.

6.      True

7.      False:- We get 4 Kcal of energy per gram of carbohydrates.

8.      True

9.      False:- Glycolysis is also called as EMP pathway.

10.  False. During anaerobic respiration of muscles, lactic acid accumulates in the muscles due to which we feel tired.

11.  True

12.  False:- Proteins of animal origin are called as first class proteins.

13.  True

14.  False:- We get 9 Kcal of energy per gram of lipids.

15.  False:- Each cell contains 70% water by weight.

16.  True

17.   True

18.  False:- We cannot digest fibres.

19.  True

20.  True

21.  False:- All chromosomes are arranged parallel to the equatorial plane of the cell in metaphase.

22.  False:- Condensation of thin thread - like chromosomes starts in prophase.

23.  False:- Sister chromatids are pulled apart in anaphase.

24.  False:- Plant cell divides by formation of a cell plate along the midline of the cell.

25.  True