JOIN ADRE 2.0 Telegram Group

Transportation in Plants Quiz | Transportation in Plants Objective Type Questions and Answers

Questions
21 Which of the following does not cause opening of stomata?
A Reduced pH
B Increased pH
C Light
D low carbon dioxide concentration

Answer: Reduced pH
22 Radial conduction of water takes place by
A Vessels and trachieds
B Ray parenchyma cells
C Vessels
D Phloem

Answer: Ray parenchyma cells
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

23 The first process by which water enters into the seed coat when a seed is placed in a suitable environment for germination is
A Imbibition
B Absorption
C Osmosis
D None of these

Answer: Imbibition
24 Which of the following helps in ascent of sap?
A Transpiration
B Capillarity
C Root Pressure
D All Of Above

Answer: All Of Above
25 Potometer works on the principle of
A Amount of water absorbed equals the amount transpired
B potential difference between the tip of the tube and that of the plant
C Osmotic pressure
D Root pressure

Answer: Amount of water absorbed equals the amount transpired
26 A few drops of sap were collecled by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?
A The absence of sugar
B Acidic
C Alkaline
D Low refractive index

Answer: Alkaline
27 Root pressure develops due to
A Increase in transpiration
B Passive absorption
C Active absorption
D Low osmotic potential in soil

Answer: Active absorption
28 Transpiration and root pressure cause water to rise in plants by
A pulling and pushing it, respectively
B pushing and pulling it, respectively
C Pulling it upward
D pushing it upward

Answer: pulling and pushing it, respectively
29 Which one of the following elements in plants is not remobilised?
A Phosphorus
B Sulphur
C Potassium
D Calcium

Answer: Calcium
30 Passage cells are thin-walled cells found in:
A testa of seeds to enable emergence of growing embryonic axis during seed germination
B central region of style through which the pollen tube grows towards the ovary
C endodermis of roots facilitating rapid transport of water from cortex to pericycle
D phloem elements that serve as entry points for substances for transport to other plant parts

Answer: endodermis of roots facilitating rapid transport of water from cortex to pericycle
31 The translocation of organic solutes in sieve tube members is supported by:
A mass flow involving a carrier and ATP
B cytoplasmic streaming
C root pressure and transpiration pull
D P-proteins

Answer: mass flow involving a carrier and ATP
32 On plasmolysis, a plant cell
A become turgid
B become flaccid
C Swells up
D None of these

Answer: become flaccid
33 During ascent, water column present inside vessels and tracheids, does not rupture due to
A cohension and adhesion
B weak gravitational pull
C transpiration pull
D None of these

Answer: cohension and adhesion
34 The water potential of pure water is
A less than zero
B more than zero, but less than one
C zero
D more than one

Answer: zero
35 Passive absorption of water by the root system is the result of
A Tension on the cell sap due to transpiration
B Osmotic force in the shoot system
C Forces created in the cells of the root
D Increased respiratory activity in root cells

Answer: Tension on the cell sap due to transpiration
36 The translocation of organic solutes in sieve tube members is supported by
A P proteins
B root pressure and transpiration pull
C cytoplasmic streaming
D mass flow involving a carrier and ATP

Answer: P proteins
37 Which of the following experiment is called physiological demonstration of osmosis?
A Thistle funnel- whose mouth is tied with parchment paper
B potometer
C Thistle funnel- whose mouth is tied with egg membrane
D bell jar experiment

Answer: Thistle funnel- whose mouth is tied with parchment paper

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