CHAPTER 2: CELL STRUCTURE AND FUNCTION

CHAPTER 2: CELL STRUCTURE AND FUNCTION

No

Mark Scheme

1 (a) Able to name Q,R and S.

Sub Total Mark Mark

Answer :

Q: Golgi apparatus / jasad golgi

1

R: Rough endoplasmic reticulum / jalinan endoplasma kasar

1

S: Mitochondria / mitokondrion

1

3

(b) Able to state the function of organelle S

Sample answer :

F : Generates/ release/produces energy /ATP//

1

Menjana/membebaskan/menghasilkan tenaga/ATP

E1: require more energy // memerlukan lebih banyak tenaga

E2: to swim/move towards the ovum// untuk berenang/ bergerak ke arah ovum

1 1

3

(c) Able to name two extra cellular enzyme that are secreted by the cell

Answers : 1

1. Trypsin

2. Lipase

1

3. Amylase 1

Any 2

2

(d) Able to explain the reason what will happen to the production of extracellular enzyme if Q and R are absent

Sample answers :

E1 If R absent protein synthesized (by the ribosomes) cannot

be transported throughout to Q.

1

Jika R tiada, protein yang disintesis oleh ribosom tidak

dapat diangkut keluar ke Q

E2 If Q absent protein /carbohydrate/glycoprotein cannot be 1

modified / packaged /transport (to form secretory

substances such as extra cellular enzyme out of the cell)

Jika Q tiada, protein/karbohidrat/ glikoprotein tidak

dapat diubahsuai/ dibungkus/ dihantar

2

(e) Able to state and explain the number of P if the cell undergoes mitosis

Sample answers :

F: 6

E1: mitosis maintain the diploid number of the cell Mitosis mengekalkan bilangan diploid bagi sel

1 1

2

TOTAL

12

CHAPTER 3: MOVEMENT OF SUBSTANCES ACROSS THE PLASMA MEMBRAN

No

Mark Scheme

1

Able to name structure labeled P ,Q and R.

(a)(i) Answer

Sub Total Mark Mark

P: Cell wall Dinding sel

1 3

Q: Cytoplasma

1

Sitoplasma

R: Vacoule /Cell sap

1

Vakuol

Able to state the condition Y of cell. (a)(ii) Answer

Turgid Segah

1

1

(b) Able to explain how conditions X and Y occur. Answer:

Condition X: Keadaan X:

Cell is in normal condition / maintain its shape / not

1

change. Sel dalam keadaan normal / kekal dalam

bentuknya / tidak berubah.

Solution outside the cell is isotonic to the sap cell of

1

plant cell. Larutan di luar sel adalah isotonic terhadap

sap sel tumbuhan.

Water diffuses in and out of the cell at equal rate. Air

1

meresap masuk dan keluar dalam kadar yang sama.

(Any 2)

2

Condition Y: Keadaan Y:

 Solution outside the cell is hypertonic to cell sap of

plant cell. Larutan luar sel adalah hipertonik terhadap 1

sap sel tumbuhan.

Water diffuse out from the cell by osmosis. Air

meresap keluar daripada sel secara osmosis.

1

Plasma membrane is pulled away from the cell wall.

Membrane plasma tertarik menjauhi dinding sel.

1

(Any 2)

2

4

(c ) Able to explain the effect to the transport of mineral ions into the root hair cell. Answer:

The cell unable to produce energy // energy is not

1

generated. Sel tidah dapat menghasilkan tenaga //

tidak dapat menjana tenaga

Active transport does not occurs . pengangkutan aktif

1

tidak berlaku.

Thus, mineral ions cannot be transported into the cell.

1

Oleh itu, ion mineral tidak dapat dihantar ke dalam

sel.

2

2

( any 2)

(d) Able to draw a diagram to show the condition of a leaf cell.

Diagram

1

Label

1

2

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