Transportation Practice Questions
IGCSE (Cambridge) · IGCSE Biology · 149 free MCQs with instant results and detailed explanations.
149
Total
44
Easy
75
Medium
30
Hard
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Sample Questions from Transportation
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
Which of the following substances is primarily transported by the phloem in plants?
A.
Water
B.
Mineral salts
C.
Glucose
D.
Oxygen
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Correct Answer: C
Phloem primarily transports organic nutrients, especially glucose, produced during photosynthesis in plants. Water and mineral salts are mostly transported by xylem, while oxygen is not transported by phloem.
Q2
Easy
In humans, what component of the blood is responsible for transporting oxygen?
A.
Platelets
B.
Plasma
C.
Red blood cells
D.
White blood cells
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Correct Answer: C
Red blood cells contain hemoglobin, which binds to oxygen in the lungs and transports it to tissues throughout the body. Plasma carries nutrients and wastes, while platelets and white blood cells have different functions.
Q3
Easy
Which process primarily drives the movement of water through plant roots?
A.
Diffusion
B.
Transpiration
C.
Osmosis
D.
Active transport
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Correct Answer: C
Osmosis is the process that drives the movement of water from the soil into the plant roots, as water moves from an area of lower solute concentration (soil) to an area of higher solute concentration (root cells).
Q4
Medium
Which type of blood vessel is primarily responsible for transporting oxygenated blood away from the heart?
A.
Arteries
B.
Veins
C.
Capillaries
D.
Venules
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Correct Answer: A
Arteries are designed to carry oxygenated blood away from the heart to the body tissues. They have thick, muscular walls to withstand the high pressure of blood pumped from the heart.
Q5
Medium
What is the primary function of the xylem in plants?
A.
Transporting sugars
B.
Transporting water and minerals
C.
Photosynthesis
D.
Storing nutrients
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Correct Answer: B
The xylem's primary function is to transport water and dissolved minerals from the roots to the rest of the plant, which is crucial for growth and photosynthesis.
Q6
Medium
In humans, what is the role of the pulmonary circulation?
A.
To supply oxygen to body tissues
B.
To remove carbon dioxide from the body
C.
To transport blood between the heart and lungs
D.
To regulate blood pressure
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Correct Answer: C
Pulmonary circulation is the pathway in which deoxygenated blood is transported from the heart to the lungs for oxygenation and then back to the heart, thus facilitating gas exchange.
Q7
Medium
Which of the following mechanisms is primarily responsible for the movement of water through plant roots?
A.
Active transport
B.
Diffusion
C.
Osmosis
D.
Facilitated diffusion
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Correct Answer: C
Osmosis is the process by which water moves from an area of lower solute concentration to an area of higher solute concentration, enabling the absorption of water through the root cells.
Q8
Hard
Which of the following correctly describes the role of xylem in plants?
A.
Xylem transports water and minerals from roots to leaves.
B.
Xylem transports sugars from leaves to roots.
C.
Xylem is responsible for gaseous exchange.
D.
Xylem stores nutrients during photosynthesis.
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Correct Answer: A
Xylem is specialized tissue in plants that primarily conducts water and dissolved minerals upwards from the roots to the rest of the plant, especially the leaves, where photosynthesis occurs.
Q9
Hard
In a laboratory experiment, a plant cell is placed in a hypertonic solution. What would be the most likely effect on the cell?
A.
The cell will swell and possibly burst.
B.
The cell will remain unchanged.
C.
The cell will lose water and become plasmolyzed.
D.
The cell will absorb nutrients from the solution.
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Correct Answer: C
In a hypertonic solution, the concentration of solutes outside the cell is greater than inside. Water moves out of the cell to balance the concentration, causing the cell to lose water and become plasmolyzed, which is a state of shrinkage.
Q10
Hard
Which of the following statements best describes the role of the xylem in plant transportation?
A.
Xylem transports nutrients from the soil to the leaves.
B.
Xylem is responsible for the transport of water and soluble minerals from roots to other parts of the plant.
C.
Xylem facilitates the transport of photosynthetic products throughout the plant.
D.
Xylem primarily stores energy in the form of starch.
Show Answer & Explanation
Correct Answer: B
Xylem is primarily responsible for the transportation of water and dissolved minerals from the roots to other parts of the plant, ensuring that these essential resources reach areas where they are needed for processes like photosynthesis.
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Transportation — IGCSE (Cambridge) IGCSE Biology Practice Questions Online
This page contains 149 practice MCQs for the chapter Transportation in IGCSE (Cambridge) IGCSE Biology. The questions are organized by difficulty — 44 easy, 75 medium, 30 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.