LATIHAN BIOLOGI TINGKATAN 4 DAN 5

7/28/2019 LATIHAN BIOLOGI TINGKATAN 4 DAN 5

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CHAPTER 4 : REPRODUCTION AND GROWTH

1. Figure 1 shows the process of sperm formation in the mammalian testis.

Figure 1

(a) (i) State P and Q

P:

Q:

(ii) Give a reason why cells Q and R are genetically identical.

(b) State the type of cell division X and explain how it can lead to cell S and T

being genetically different.

Cell division X

Cell division


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2. Figure 2 shows the process of ovum formation in the mammalian ovary.

Figure 2

(a) (i) Name the structures labelled L, M and N

L:

M:

N: .

(ii) State the hormone involved in the formation of follicle and explain the role

of the folicle

(b) Explain process X

Process X


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3. Diagram 3.1 shows a graph on how the endometrium in the human uterus varies inthickness with time. Fertilisation took place on the 16th day of the second month.

(a) (i) State the process which took place at X.

....

(ii) Based on the Diagram 3.1, state one reason to support your answer in(a) (i).

..

(b) (i) Complete the graph in Diagram 3.1 to show the changes in thethickness of the endometrium after day 22 in the second month untilday 28 of the third month.

(ii) Explain why the thickness of the endometrium changes in the wayshown in (b)(i).

..

......................................................................4. Diagram 4 .1 shows a structure of a human placenta and its connection to the

fetus.

Fertilisation

First

month

Second

month

Third

month

Time / days

22

Thicknessofthe

endometrium

DIAGRAM 3.1


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(a) (i) Name X.

X :

(ii) State two importance of X

..................................

..

(b) State two substances which are carried by the blood in Y, in thedirection of the arrow.

.

(c) Explain the role of placenta in foetal development

X

Diagram 4.1

Placenta


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............................

..

..

..

..

(d) Diagram 6.2 shows a negative habit of a pregnant mother. .

Explain the effect of this habit to the foetus

............................

..

..

..

5. The diagram 5.1 shows the development of an ovule of an angiosperm

Diagram 4.2


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(a) State process W, X and Y

W : ..

X : .

Y : .

(b) A farmer transfers a little amount of pollen grains onto a stigma of a flower fromthe same species. Explain what will happen to the pollen grain later

............................

..

..

(c) Explain what it means by double fertilization

............................

..

..

(d) Explain how double fertilization can ensure the survival of an angiosperm

............................

.(e) Diagram 8.2 shows the longitudinal cut of an ovary of an angiosperm

Diagram 5.1


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On diagram 8.2 draw the development of a pollen tube until it reaches theembro sac

(f) Diagram 8.3 shows a longitudinal section of the reproductive parts of a flowerduring fertilization.

(i) State the number of seeds that might be produced

............................

(ii) Explain how those number of seeds will be produced.

............................

.6. The diagram shows a longitudinal section of the tips of a root.

Diagram 5.2

Diagram 5.3


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(a) In the box provided, draw a cell or a tissue to represent the cells or tissues inevery zone

Zone 1 Zone 2 Zone 3

(b) (i) Name tissue V and W

............................

.

(ii) State a functional difference between tissue V and W

............................

.

(c) The tip of the root was immersed into Knop solution containing respiratorypoison.

Q


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(i) State the effect of the poison on the activity of cells in :-

Zone 1 :

..................................................

Zone 2:

..................................................

(ii) Explain your answer in (c) (i)

.................................

..

..

(d) In the box provided, draw a cross section of the tip of the root through PQ

7. Diagram 7.1 shows the growth curve of a mice and diagram 7. 2 shows the growthcurve of a grasshopper


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(a) Name the type of curve represented by diagram 7.1 and diagram 7.2............................

.

(b) State two differences between the two growth curves

............................

.

(c) State what phase X is and explain what happen in phase X

............................

..

..

(c) (i) On diagram 7.2 , show where ecdysis occurs by using an arrow

Age(Week)

Body

mass

(g)

X

Length of

body

(mm)

Time

(days)

Diagram 10.1 Diagram 10.2

Y


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(ii) Explain what happen during ecdysis.

............................

..

..

(d) On diagram 7. 2, plot a growth curve of a grasshopper if the growth is

depending on its mass. Explain how the graph is obtained

........

........

........

........................................................................................................................................

(e) Based on diagram 10.2, explain why there is no change in the length of thegrasshopper during Y.

........

........

........

........................................................................................................................................

8. Diagram 8 shows the development of a human zygote.


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DIAGRAM 8

a) Describe the processes from P to Q .

b) The fallopian tubes of a married woman are blocked, making it impossiblefor her to conceive through the natural process. She and her husbandinsist to have their own child . Explain one modern technique that canbe used by the childless couple to conceive. Justify your choice.

P

Q

two cells stag

Fallopian Tub

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LATIHAN BIOLOGI TINGKATAN 4 DAN 5