Perak Trial 2023 Biologi Kertas 1

Biologi

Perak Trial 2023 Biologi Kertas 1

• Percubaan Perak · 2023
• 40 soalan

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2026-10-29

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1

Diagram 1 shows a graph for an experiment. Which of the following statements are correct about the graph? I X represents the responding variable II Y is the factor that is changed III The title of the graph is Y against X IV The graph is used to make comparisons between items in X

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

T4 Chapter 1.4 Scientific Investigation in Biology

2

The following statements are about cell component P. - Contains hydrolytic enzymes - Breaks down damaged cell components What is cell component P?

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A Ribosome B Lysosome C Golgi apparatus D Smooth endoplasmic reticulum

T4 Chapter 2.1 Cell structure and function

3

What will happen if there are no goblet cells in the epithelial tissue of the respiratory tract?

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A No expelling of mucus B No increase in mucus C No production of mucus D No decrease in mucus

T4 Chapter 8.1 Types of Respiratory System

4

Which of the following substances can pass through the phospholipid bilayer?

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A Glycerol B Glucose C Amino acid D Vitamin B

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

5

Diagram 2 shows the condition of a plant cell before and after being immersed in solution Z. What is solution Z and the process involved? | | Solution Z | Process | |---|---|---| | A | Hypertonic | Deplasmolysis | | B | Hypotonic | Plasmolysis | | C | Hypertonic | Plasmolysis | | D | Hypotonic | Deplasmolysis |

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A Hypertonic – Deplasmolysis B Hypotonic – Plasmolysis C Hypertonic – Plasmolysis D Hypotonic – Deplasmolysis

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

6

Which group of elements builds up protein?

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A Carbon, Hydrogen, Phosphorus B Carbon, Hydrogen, Nitrogen C Carbon, Hydrogen, Oxygen, Nitrogen D Carbon, Oxygen, Nitrogen, Phosphorus

T4 Chapter 4.3 Protein

7

The following information is about the process of removing fur from animal hides in the leather industry. | | | |---|---| | Enzyme used | Trypsin | | pH | 7.5 | | Temperature | 45 °C | | Rate of process | Low | Which step should be taken to reduce the duration of the process?

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A Increase the temperature to 65 °C B Increase the pH to 8.5 C Reduce the amount of animal hides D Reduce the concentration of trypsin

T4 Chapter 5.3 Application of Enzymes in Daily Life

8

Diagram 3 shows a cell cycle. Which phase labelled A, B, C or D, is involved in accumulation of energy?

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A A B B C C D D

T4 Chapter 6.2 Cell Cycle and Mitosis

9

Diagram 4 shows the characteristics of an individual with a genetic disorder. Characteristics: - Stiff neck - Infertile - Lack of female secondary sex characteristics What is the similarity in terms of gamete formation between the genetic disorder and Down syndrome?

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A Cytokinesis does not occur after telophase I B Homologous chromosomes do not pair during prophase I C Nuclear membrane does not form during telophase II D Spindle fibres do not contract during anaphase II

T4 Chapter 6.4 Issues of Cell Division on Human Health

10

Where does glycolysis occur in the cell?

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A Mitochondria B Cytoplasm C Nucleus

T4 Chapter 7.2 Aerobic Respiration

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