Kertas Soalan Percubaan Johor MPSM SPM 2026 Biologi Kertas 1 – 40 Soalan Berjawapan

Diagram 1 shows a piece of personal protective equipment found in a laboratory. What is the name of the part labeled **A**?

A Fume hood B Eyewash station C Emergency shower station

Diagram 2 shows a step in preparing onion cell slides. Why does the glass cover need to be placed at a 45° angle slowly?

A To prevent the onion epidermis from folding. B To prevent the formation of air bubbles under the glass slide cover. C To avoid drawing iodine drops so that they color the entire onion epidermis.

What are the effects of mitochondrial dysfunction? I Weak muscles II Mental retardation III Vision problems IV Stunted growth

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

Diagram 3 shows a phospholipid bilayer. Which match is correct about the structures of **F** and **G**?

A F: Polarized; G: Non polarized B F: Non polarized; G: Polarized C F: Hydrophobic; G: Hydrophilic D F: Not attracted to water; G: Attracted to water

Diagram 4 shows the arrangement of the apparatus for an experiment studying the movement of matter through a Visking tube. After 5 minutes, it was found that the final level of the sucrose solution increased. What would be observed if the Visking tube was replaced with ice cream plastic?

A The level of sucrose solution does not change B The final level of the sucrose solution increases C The final level of the sucrose solution decreases D The final level of distilled water in the beaker decreases

Diagram 5 shows the process of polypeptide synthesis that forms proteins. Based on Diagram 5, what would be the effect if DNA breaks down? I Codons are formed II Transcription does not occur III Translation does not occur IV Polypeptide chains are synthesized

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

Diagram 6 shows a graph of energy change for a metabolic reaction with and without the presence of enzymes. A student found that product production increased rapidly when enzymes were added even though the experimental temperature was constant. What is the best explanation for this observation?

A Enzymes increase the kinetic energy of the substrate molecule B Enzymes increase the energy content of the product C Enzymes decrease the activation energy of the reaction D Enzymes provide heat energy to the product

Diagram 7 shows a phase in the mitosis process. What is the function of spindle fibers?

A Produce energy for cell division B Control the exchange of materials across the plasma membrane C Form the nuclear membrane during cell division D Pull chromosomes or chromatids to opposite poles of the cell

> A child was born with symptoms such as stunted growth, mental retardation, small eyes and a slightly protruding tongue. Based on the statement, which is the cause of the disease?

A Spindle fibers are defective B Homologous chromosomes fail to separate during metaphase I C Sister chromatids fail to separate during anaphase II D Fertilization between gametes that have an abnormal number of chromosomes, namely 22+XX and 22+Y

> Cellular respiration is the process of oxidizing organic molecules through several stages to release energy. Based on the statement above, what is the value of the energy produced during aerobic respiration?

A 150 kJ B 210 kJ C 2898 kJ D 2989 kJ

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Johor Trial 2026 Biologi Kertas 1 · MPSM

Johor Trial 2026 Biologi Kertas 1 · MPSM

Johor Trial 2026 Biologi Kertas 1 · MPSM

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