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Festival Sukan
Main Pasukan
Menengah Rendah 1
Sains
4 UM
Nurul Fathiyah
18
Masalah tambahan (17/ 20)
Allow incorrect answer
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# 1

pilihan

What is the main function of the plasma membrane?

  • To provide energy to the cell
  • To control substances entering and leaving the cell
  • To produce proteins
  • To store genetic material

# 2

pilihan

Which of the following processes requires energy (ATP)?

  • Diffusion
  • Osmosis
  • Facilitated diffusion
  • Active transport

# 3

pilihan

What is the movement of water molecules across a partially permeable membrane called?

  • Diffusion
  • Active transport
  • Osmosis
  • Endocytosis

# 4

pilihan

Diffusion occurs when molecules move from:

  • A low concentration to a high concentration
  • A high concentration to a low concentration
  • An area of equal concentration to another equal concentration
  • Inside the cell to the nucleus

# 5

pilihan

Which statement about osmosis is correct?

  • It moves water from a high to a low concentration through a partially permeable membrane.
  • It moves solutes across a membrane.
  • It requires energy.
  • It moves only in one direction.

# 6

pilihan

What happens to an animal cell placed in a hypertonic solution?

  • It swells and bursts
  • It shrinks
  • It remains the same size
  • It becomes turgid

# 7

pilihan

What will happen to a red blood cell placed in distilled water?

  • It will shrink
  • It will remain the same size
  • It will burst
  • It will divide

# 8

pilihan

What happens when a plant cell is placed in a hypertonic solution?

  • It becomes turgid
  • It undergoes plasmolysis
  • It swells and bursts
  • It becomes flaccid

# 9

pilihan

Why does a plant cell not burst when placed in a hypotonic solution?

  • The cell wall prevents excessive expansion
  • The plasma membrane becomes stronger
  • The nucleus prevents water from entering
  • The cytoplasm absorbs all the water

# 10

pilihan

Which process moves molecules against a concentration gradient?

  • Diffusion
  • Osmosis
  • Facilitated diffusion
  • Active transport

# 11

pilihan

Which of the following statements about facilitated diffusion is true?

  • It requires ATP
  • It only moves water molecules
  • It requires a transport protein
  • It moves substances against the concentration gradient

# 12

pilihan

Which transport process does NOT require a protein channel?

  • osmosis
  • Facilitated diffusion
  • Active Transport

# 13

pilihan

A cell is placed in a solution, and it shrinks. What can you conclude about the solution?

  • It is hypotonic
  • It is hypertonic
  • It is isotonic
  • It has no water

# 14

pilihan

Why do freshwater fish not drink water like saltwater fish?

  • They do not need water to survive
  • They gain water by osmosis and excrete excess water through urine
  • They lose water to their surroundings
  • They do not have a need for osmosis

# 15

pilihan

A scientist observes a cell that rapidly takes in nutrients against the concentration gradient. Which process is likely occurring?

  • Diffusion
  • Osmosis
  • Active transport
  • Exocytosis

# 16

pilihan

What will happen if a carrot is placed in a concentrated salt solution?

  • It will absorb water and swell
  • It will lose water and shrink
  • It will remain the same size
  • It will become more turgid

# 17

pilihan

Which of the following is NOT an example of active transport?

  • Sodium-potassium pump in nerve cells
  • Absorption of minerals in root hair cells
  • Oxygen entering red blood cells
  • Glucose absorption in the intestine
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