Biology Ques Pertgh Penggal 2

1.

Diagram 1 shows the different stages which take place during cell division.

Diagram 1 (a) Name the cell division shown in Diagram 1. ............................................................................................................................................................ [1 mark] (b) Arrange the stages in Diagram Di agram 1 according to the correct sequence of events during cell division ............................................................................................................................................................ [1 mark] (c) Name the stages labelled K and N? K

: .................................................................................................................................................

N

: ................................................................................................................................................. [2 marks]

(d) Explain the behaviour of chromosomes during stages K and N. K

: .................................................................................................................................................

N

: ................................................................................................................................................. [2 marks]

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Diagram 2 shows an experiment carried o ut on animal cloning by using two different species of frog

Species Y

Species X Ovum

C

Intestine is removed from the tadpole

A UV light

Ovum without nucleus

B D

Nucleus is sucked out from the intestine

Nucleated egg cell fused with the nucleus of intestinal cell E F

Diagram 2

(e) Based on Diagram 2, state the meaning of cloning. ............................................................................................................................................................ ............................................................................................................................................................ [1 mark] (f) Name the type of reproduction shown in Diagram 2. Give a reason for your answer. ............................................................................................................................................................ ............................................................................................................................................................ [2 marks] (g) Describe why a mature intestinal cell is used in this experiment. Give two reasons. ............................................................................................................................................................ ............................................................................................................................................................ [2 marks] (h) (i)

Based on Diagram Diagram 2, name the species species of frog frog that will be produced at the end of the experiment. .................................................................................................................................................... [1 mark]

(ii)

Explain your answer in (h) (i).





2.

Diagram 3 shows the levels of cell organisation in human.

Cell Cell P

Smooth muscle cell

Tissue Tissue P

Tissue Q

Diagram 3

Level R

Stomach

Gastric gland

(a) State what a cell is. ............................................................................................................................................................ [1 mark] (b) Name Cell P and Tissue Q Cell P : ................................................................................................................................................. ........................................................................................................ ......................................... Tissue Q : ........................................................................................................................................... [2 marks] (c) Based on Diagram 3, explain the t he organisation and function of Tissue Q a nd stomach. Tissue Q : ........................................................................................................................................... ............................................................................................................................................................ Stomach : .......................................................................................................................................... ............................................................................................................................................................ [4 mark] (d) State the Level R of cell organisation.





(e) (i)

Name the food molecules that are digested in the stomach and the enzyme for this reaction. Food molecules : ....................................................................................................................... Enzyme

: ...................................................................................................................... [2 marks]

(ii)

Describe how the hydrochloric acid produced by by the gastric glands help in the digestion of food molecules in the stomach. ................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... [2 marks]

3.

Diagram 4(a) shows the human digestive system.

Diagram 4(a)

(a) (i)

State the difference between mechanical and chemical digestion. ................................................................................................................................................... ...................................................................................................................................................





(b) (ii) State the difference between absorption and assimilation. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... [2 marks] (c)

Name the structures P and Q. P : ...................................................................................................................................................... Q : ..................................................................................................................................................... [2 marks]

(d) Describe how Q is involved involved in the digestion of fats and starch in P .......................................................................................................................................................... .......................................................................................................................................................... [2 marks] (f) Diagram 4(b) shows two types of fats

Diagram 4(b)

Butter, meat, dairy product, cheese (i)

Vegetable oil like corn oil

State the type of fats shown in Diagram 4(b) R : .................................................................

S: ................................................................... [2 marks]

(ii) A girl takes food from group R continuously continuously for a long period period of time. Explain the consequences to the health of her heart. ...................................................................................................................................................





4.

Diagram 5 represents the structures of four organic compounds which are found in living cells.

W

Diagram 5 (a) (i)

Name the compounds of X and Z X : ............................................................................................................................................... Z : .............................................................................................................................................. [2 marks]

(ii)

State the monomer of X and Y X : ............................................................................................................................................... Y : ...............................................................................................................................................

(b) (i)

[2 marks] Monomer X can be be divided into 2 groups, which is essential essential and non-essential of monomer X. State the difference difference between these two groups . .................................................................................................................................................... .................................................................................................................................................... [1 mark]

(ii) State the reaction that leads leads to synthesis of compound compound Z. ................................................................................................................................................... [1 mark]







(d) (i)

In the space below below draw and label the structure structure of the basic basic unit of organic compound W.

[2 marks]

(ii) Name two type of organic compound W. ................................................................................................................................................... [1 mark] (iii) State 2 differences between the organic compounds you have named in (d)(iii) ................................................................................................................................................... .................................................................................................................................................... ................................................................................................................................................... [2 marks] 5.

Diagram 6 shows three organisms P , Q and R.

Diagram 6

Biology Ques Pertgh Penggal 2

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