Johor Trial 2023 Biologi Kertas 1

Biologi

Johor Trial 2023 Biologi Kertas 1

• Percubaan Johor · 2023
• 40 soalan

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2026-10-29

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1

Diagram 1 shows an organism. Which of the following A, B, C and D is dorsal?

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A A B B C C D D

T4 Chapter 1.3 Communicating in Biology

2

The following statements are the characteristics of component R. - Has a double membrane - Interior contains aqueous solution that has enzyme - Site for aerobic respiration What is component R?

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A Vacuole B Chloroplast C Ribosome D Mitochondrion

T4 Chapter 2.1 Cell structure and function

3

Table 1 shows the density of organelle X in two types of cells. | Type of cell | Density of organelle X (%) | |---|---| | Liver cell | 65 | | Flight muscle cell | 20 | What is the function of organelle X?

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A Form spindle fibres B Secretes mucus to protect the mucous membranes C Transports synthesised enzymes D Produces energy in the form of ATP

T4 Chapter 2.1 Cell structure and function

4

Diagram 2 shows a process of absorption of substance Q into plant root hair cells. This absorption process requires energy. What is substance Q?

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A Water B Sodium ion C Oxygen D Glucose

T4 Chapter 3.3 Movement of Substances Across a Plasma Membrane in Living Organisms

5

Diagram 3 shows the set-up of apparatus prepared by a student to study the movement of water molecules by osmosis. Which of the following steps can be used to lower the level of coloured liquid solution in potatoes?

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A Replacing distilled water with a 20% sucrose solution B Replacing distilled water with a 40% sucrose solution C Replacing a coloured 20% sucrose solution with a 30% sucrose solution D Replacing a coloured 20% sucrose solution with a 40% sucrose solution

T4 Chapter 3.2 Concept of Movement of Substances Across a Plasma Membrane

6

The sequence of nitrogenous bases in a nucleotide chain in a segment of DNA molecule is AATTCCGG. What is the sequence of nitrogenous bases in the nucleotide chain beside this chain (double helix chain)?

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A ATCTATCG B CCGGAATT C AATTCCGG D TTAAGGCC

T4 Chapter 4.5 Nucleic Acids

7

Which of the following are the characteristics of enzymes? I Structure of enzymes are changed at the end of a reaction. II Enzymes are only required in small amounts. III The action of enzymes is specific. IV Reactions catalysed by enzymes are irreversible only.

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A I and II B II and III C III and IV D I and IV

T4 Chapter 5.2 Enzyme

8

Diagram 4 shows the mechanism of enzyme action. Which of the following is P?

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A Substrate B Active site C Enzyme D Enzyme-substrate complex

T4 Chapter 5.2 Enzyme

9

What is the process involved in nuclear division?

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A Meiosis I B Meiosis II C Cytokinesis D Karyokinesis

T4 Chapter 6.1 Cell Division

10

Diagram 5 shows a cell at one particular stage of meiosis. Which of the following is the final result produced by the cell division of the cell?

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A B C D

T4 Chapter 6.3 Meiosis

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