Transport in Plants Practice Questions
NEET · Biology · 1023 free MCQs with instant results and detailed explanations.
1023
Total
204
Easy
424
Medium
395
Hard
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Topics in Transport in Plants
Absorption of Water and Minerals
158
Plasmolysis
159
Transpiration
156
Translocation
158
Diffusion
175
Osmosis
217
Sample Questions from Transport in Plants
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the primary driving force behind the process of diffusion in plants?
A.
Concentration gradient
B.
Active transport
C.
Osmotic pressure
D.
Capillary action
Show Answer & Explanation
Correct Answer: A
Diffusion occurs primarily due to the concentration gradient, where substances move from an area of higher concentration to an area of lower concentration until equilibrium is achieved.
Q2
Easy
Which of the following substances primarily enters plant roots through diffusion?
A.
Water
B.
Mineral salts
C.
Glucose
D.
Oxygen
Show Answer & Explanation
Correct Answer: B
Mineral salts enter plant roots through diffusion as they move from an area of higher concentration in the soil to a lower concentration inside the root cells.
Q3
Easy
In which part of the plant does diffusion mainly occur for gas exchange?
A.
Roots
B.
Stem
C.
Leaves
D.
Flowers
Show Answer & Explanation
Correct Answer: C
Diffusion mainly occurs in the leaves of plants for gas exchange, where carbon dioxide enters and oxygen exits through stomata.
Q4
Medium
What is the primary factor that influences the rate of diffusion in plant cells?
A.
Concentration gradient
B.
Temperature
C.
Size of the molecules
D.
Surface area
Show Answer & Explanation
Correct Answer: A
The concentration gradient is the driving force for diffusion; the greater the difference in concentration, the faster the rate of diffusion.
Q5
Medium
In plants, which of the following best describes the diffusion of water through the cell membrane?
A.
Active transport
B.
Facilitated diffusion
C.
Simple diffusion
D.
Endocytosis
Show Answer & Explanation
Correct Answer: C
Water moves through the cell membrane via simple diffusion due to its small size and concentration gradient, particularly through aquaporins.
Q6
Medium
If a plant cell is placed in a hypertonic solution, what will be the result of diffusion?
A.
Water will enter the cell
B.
No change in cell volume
C.
Water will leave the cell
D.
Cell will burst
Show Answer & Explanation
Correct Answer: C
In a hypertonic solution, the concentration of solutes is higher outside the cell, causing water to diffuse out, resulting in cell shrinkage.
Q7
Medium
What role do guard cells play in the diffusion of gases in plants?
A.
They store nutrients.
B.
They control the opening and closing of stomata.
C.
They transport water.
D.
They assist in photosynthesis.
Show Answer & Explanation
Correct Answer: B
Guard cells regulate the size of stomatal openings, facilitating the diffusion of gases like oxygen and carbon dioxide in and out of the leaf.
Q8
Hard
What is the primary mechanism by which water moves through the root cells of a plant during osmosis?
A.
Active transport
B.
Diffusion
C.
Facilitated diffusion
D.
Simple osmosis
Show Answer & Explanation
Correct Answer: D
Simple osmosis is the process by which water moves from an area of high water potential to an area of low water potential through a semi-permeable membrane, which is how water enters root cells.
Q9
Hard
In a hypertonic solution, a plant cell will undergo which of the following?
A.
Plasmolysis
B.
Turgidity
C.
Osmoregulation
D.
Osmosis
Show Answer & Explanation
Correct Answer: A
In a hypertonic solution, the water moves out of the plant cell causing the cytoplasm to shrink away from the cell wall, a process known as plasmolysis.
Q10
Hard
If a plant cell's turgor pressure is increased, which of the following statements is true?
A.
The cell will become flaccid
B.
Plasmolysis will occur
C.
The cell will be more rigid
D.
The cell will lose water rapidly
Show Answer & Explanation
Correct Answer: C
Increased turgor pressure makes the cell more rigid as it pushes the cytoplasm against the cell wall, which is crucial for maintaining plant structure.
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Transport in Plants — NEET Biology Practice Questions Online
This page contains 1023 practice MCQs for the chapter Transport in Plants in NEET Biology. The questions are organized by difficulty — 204 easy, 424 medium, 395 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. This chapter covers 6 topics, giving you comprehensive coverage of the entire chapter.