# 1pilihan
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
4 UM
Nurul Fathiyah
Perlawanan berpasukan
Menengah Rendah 1
Sains
4 UM
18
Menengah Rendah 1
Sains
4 UM
18
17 soalan
Allow incorrect answer
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# 2pilihan
Which of the following processes requires energy (ATP)?
Diffusion
Osmosis
Facilitated diffusion
Active transport
# 3pilihan
What is the movement of water molecules across a partially permeable membrane called?
Diffusion
Active transport
Osmosis
Endocytosis
# 4pilihan
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
# 5pilihan
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.
# 6pilihan
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
# 7pilihan
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
# 8pilihan
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
# 9pilihan
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
# 10pilihan
Which process moves molecules against a concentration gradient?
Diffusion
Osmosis
Facilitated diffusion
Active transport
# 11pilihan
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
# 12pilihan
Which transport process does NOT require a protein channel?
osmosis
Facilitated diffusion
Active Transport
# 13pilihan
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
# 14pilihan
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
# 15pilihan
A scientist observes a cell that rapidly takes in nutrients against the concentration gradient. Which process is likely occurring?
Diffusion
Osmosis
Active transport
Exocytosis
# 16pilihan
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
# 17pilihan
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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