JOIN ADRE 2.0 Telegram Group

Transportation in Plants MCQs | Transportation in Plants Multiple Choice Questions and Answers

Questions
1 Stomata open at night in
A Succulents
B Mesophytes
C Hydrophytes
D Halophytes

Answer: Succulents
2 In which of the following plants, there will be no transpiration?
A Aquatic, submerged plants
B Aquatic plants with floating leaves
C Plants living in deserts
D Plants growing in hilly regions

Answer: Aquatic, submerged plants
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

3 Upward movement of water in plants is called
A Sucking
B Translocation
C Ascent Of Sap
D None of these

Answer: Ascent Of Sap
4 Which of the following statements is not true for stomatal apparatus?
A Guard cells are always surrounded by subsidiary cells
B Stomata are involved in gaseous exchange
C Guard cells invariably posses chloroplast and mitochondria
D None of these

Answer: Guard cells are always surrounded by subsidiary cells
5 Transpiration is very important for plants because it helps in
A The cooling of leaves at high temperature
B The absorption of water from soil
C The movement of water and minerals absorbed by roots to various parts of the plant
D All of these

Answer: All of these
6 Munch hypothesis is based on
A Translocation of food due to turgor pressure (TP) gradient
B Translocation of food due to imbibitions force
C Translocation of food due to TP gradient and imbibitions force
D None of these

Answer: Translocation of food due to turgor pressure (TP) gradient
7 Water is lost in a liquid state in some plants through hydathodes. These hydathodes
A Remain always open
B Remain closed during day
C Remain closed at night
D Do not show any specificity in opening and closing

Answer: Remain always open
8 A column of water within xylem vessels of tall trees does not break under its weight because of
A Tensile Strength Of Water
B Positive Root Pressure
C Lignification Of Xylem Vessels
D Dissolved Sugars In Water

Answer: Tensile Strength Of Water
9 Which of the following criteria does not pertain to facilitated transport?
A Uphill transport
B Transport saturation
C Requirement of special membrane proteins
D High selectivity

Answer: Uphill transport
10 The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of
A Cohesion And Adhesion
B Transpiration Pull
C Lignified Thick Walls
D Weak Gravitational Pull

Answer: Cohesion And Adhesion
11 Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, turgor pressure-7 atm and diffusion pressure deficit 3 atm. Cell B has osmotic pressure 8 atm, turgor pressure 3 atm and diffusion pressure deficit 5 atm. The result will be
A Movement of water from cell A to B
B Equilibrium between the two
C Movement of water from cell B to A
D No movernent of water

Answer: Movement of water from cell A to B
12 Root pressure occurs when there is
A Less transpiration and Less absorption
B More transpiration and more absorption
C Less transpiration and more absorption
D None of these

Answer: Less transpiration and more absorption
13 Osmosis invoves
A flow of solute without a membrane
B flow of water without a membrane
C Flow of water through a semipermeable membrane
D None of these

Answer: Flow of water through a semipermeable membrane
14 In plant water moves from
A similar gradient
B Less negative to more negative gradient
C zero gradient
D More negative to less negative gradient

Answer: Less negative to more negative gradient
15 With rise in turgidity, wall pressure will
A Remain Unchanged
B Decrease
C Fluctuate
D Increase

Answer: Increase
16 In a turgid cell which will be zero
A suction pressure
B Osmotic pressure
C Turgor pressure
D wall pressure

Answer: suction pressure
17 Which of the following chemical serves as an anti-transparent in plants?
A dimethyl mercury
B phenyl mercuric acetate
C Cobalt chloride
D Potassium iodide

Answer: phenyl mercuric acetate
18 In land plants, the guard cells differ from other epidermal cells in having
A ER
B Chloroplasts
C cytoskeleton
D mitochondria

Answer: Chloroplasts
19 Transpiration can be influenced by interfering with
A atmospheric temperature
B osmotic pressure
C Guard cell
D Epidermis of leaf

Answer: atmospheric temperature
20 Which one of the following theories for ascent of sap was proposed by eminent Indian scientist J. C Bose?
A Atmospheric pressure theory
B Transpiration Pull theory
C Pulsation theory
D Root pressure theory

Answer: Pulsation theory

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement
Assam Direct Recruitment Test Series