Pahang Trial 2024 Biology Kertas 1 · MPSM

Biology

Pahang Trial 2024 Biology Kertas 1 · MPSM

• Pahang Trial MPSM
• 40 questions
• With explanations

1

Biology is a detailed study of living things and the natural environment. What is the field of study in Biology that studies the functions and mechanisms in organisms?

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A Botany B Genetics C Anatomy D Physiology

T4 Chapter 1.1 Fields and Careers in Biology

2

The following information is about one component in the cell. - Small, compact and spherical granules - Consists of protein and ribonucleic acid (RNA) - Present on the surface of the rough endoplasmic reticulum or exist freely in the cytoplasm What components of the cell have the above characteristics?

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A Ribosome B Lysosome C Golgi apparatus D Mitochondrion

T4 Chapter 2.1 Cell structure and function

3

Diagram 1 shows the structure of a plasma membrane. What substance can across the structure labelled P?

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A Water molecule B Oxygen molecule C Glycerol molecule D Glucose molecule

T4 Chapter 3.1 Structure of Plasma Membrane

4

Diagram 2 shows a *saline* solution. It contains 0.85 – 0.90 g sodium chloride per 100 ml. How does this saline solution help in medicine? I Replace the lost of body fluids II Restores the body's osmotic balance III Add fluid to the injured tissue IV Removes fluid from injured tissue

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

T4 Chapter 3.4 Movement of Substances Across a Plasma Membrane and Its Application in Daily Life

5

Diagram 3 shows cohesive forces and adhesive forces on water molecules which produce capillary action. Based on Diagram 3, which is the cohesive force?

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A P B Q C R

T4 Chapter 4.1 Water

6

Diagram 4 shows a commercialized fruit juice drink. What pair of enzymes can be used to produce more fruit juice?

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A Lipase and trypsin B Amylase and lipase C Protease and pectinase D Cellulase and pectinase

T4 Chapter 5.3 Application of Enzymes in Daily Life

7

Diagram 5 shows a cell cycle. What will happen to the chromatid during phase S?

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A B C D

T4 Chapter 6.2 Cell Cycle and Mitosis

8

What is the importance of cellular respiration in humans and animals?

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A To produce carbon dioxide gas B To produce oxygen gas C To produce glucose D To generate energy

T4 Chapter 7.1 Production of Energy through Cellular Respiration

9

Diagram 6 shows the condition of the bronchioles of Mr M, a *Chronic Obstructive Pulmonary Disease* (COPD) patient. What health problem does Mr. M have?

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A Asthma B Emphysema C Lung cancer D Chronic bronchitis

T4 Chapter 8.4 Health Issues Related to the Human Respiratory System

10

The information below is related to the transport of carbon dioxide from body cells to tissue capillaries in humans. | | | |---|---| | P | Carbonic acid will break down into bicarbonate ion and hydrogen ion. | | Q | The carbonic anhydrase enzyme in erythrocyte catalyses this reaction. | | R | Then bicarbonate ion diffuses into the blood plasma and is carried to the lungs. | | S | Carbon dioxide released by the body cells binds with water in the erythrocyte to form carbonic acid. | What is the correct sequence for the transport of carbon dioxide from body cells to tissue capillaries in humans?

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A P, Q, R, S B Q, R, P, S C S, Q, P, R D R, Q, S, P

T4 Chapter 8.3 Gaseous Exchange in Humans

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