Transport in plant NEET MCQ

 

Q106. Phloem helps in translocation of 

(1) Hormones 

(2) Reducing sugars 

(3) Only sucrose 

(4) Only amides

Ans.1

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Q107. Substances soluble in lipids diffuse ------- through the membrane  

(1) By active transport 

(2) Faster 

(3) By facilitated transport 

(4) Slower

Ans.2

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 Q108. Which of the following is a plant factor which affects transpiration? 

(1) Light 

(2) Relative humidity 

(3) Available soil water 

(4) Root shoot ratio

Ans.4

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Q109. Active transport as well as facilitated diffusion both 

(1) Require ATP (energy) 

(2) Are highly selective 

(3) Show downhill movement of ions 

(4) Show uphill movement of ions

Ans.2

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Q110. Minerals are unloaded at fine vein ending then they are picked up by cells through 

(1) Passive antiport 

(2) Simple diffusion 

(3) Passive symport 

(4) Active transport 

Ans.4

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Q111. Xylem helps in translocation of 

(1) Amides 

(2) Some hormones 

(3) Water and minerals 

(4) More than one option is correct

Ans.4

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Q112. Consider the following statements and select the right choice. 

(a) A simple experiment, called girdling was used to identify the tissues through which food is transported 

(b) More than five percent of water reaching the leaves is used in photosynthesis and plant growth. 

(c) Facilitated diffusion is specific 

(d) Diffusion is not dependent on a living system 

(1) Only (a) is correct 

(2) (a), (b) & (c) are correct 

(3) Only (b) is incorrect 

(4) All are correct

Ans.3

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Q113. A cell is placed in 0.6 M solution of sugar and no change in volume of cell is found What is the concentration of the cell sap? 

(1) 60 M                (2) 6 M 

(3) 0.6 M               (4) 0.40 M

Ans.3

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Q114. Transpiration and root pressure cause water to rise in plants by (respectively) 

(1) Pulling it upward 

(2) Pushing and pulling 

(3) Pushing it upward 

(4) Pulling and pushing

Ans.4

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Q115. Facilitated diffusion is characterized by all, except 

(1) Requirement of membrane proteins 

(2) Uphill transport 

(3) No requirement of energy 

(4) Highly selective nature

Ans.2

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Q116. Which is not true regarding active water absorption? 

(1) Require energy 

(2) Occurs only when transpiration is slow

(3) Living cells are essential 

(4) Force develops in shoot

Ans.4

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Q117. Water channels are 

(1) Made up of eight similar types of aquaporins 

(2) Involved in active transport 

(3) Involved in facilitated diffusion 

(4) More than one option is correct

Ans.3

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Q118. A perfect partition between osmotically active system and pure water in physical conditions can be formed by a 

(1) Semipermeable membrane 

(2) Selective permeable membrane 

(3) Impermeable membrane 

(4) Freely permeable membrane

Ans.1

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Q119. When a cell is fully turgid, which of the following will be zero? 

(1) Osmotic pressure 

(2) Turgor pressure 

(3) Wall pressure 

(4) Suction pressure

Ans.4

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Q120. Which is a correct order (w.r.t. imbibing capacity in decreasing order)? 

(1) Agar-agar > Pectin > Proteins > Starch Cellulose 

(2) Agar-agar > Protein > Pectin > Cellulose > Starch 

(3) Proteins > Agar-agar > Pectin > Starch > Cellulose 

(4) Agar-agar > Starch > Protein > Cellulose > Pectin

Ans.1