CUET-PG SERIES Botany
Xylem And Phloem Structure
5 previous year questions.
Volume: 5 Ques
Yield: Medium
High-Yield Trend
5
2023 Chapter Questions 5 MCQs
01
PYQ 2023
medium
botany ID: cuet-pg-
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Sugars translocated in phloem are in non-reducing form.
Reason R: The non-reducing sugars are less reactive than reducing sugars.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion A: Sugars translocated in phloem are in non-reducing form.
Reason R: The non-reducing sugars are less reactive than reducing sugars.
In the light of the above statements, choose the most appropriate answer from the options given below:
1
Both A and R are true and R is the correct explanation of A
2
Both A and R are true but R is not the correct explanation of A
3
A is true but R is false
4
A is false but R is true
02
PYQ 2023
medium
botany ID: cuet-pg-
Formation of gas bubble leading to collapse of tension in liquid phase during water transport in xylem is called:
1
Capitation
2
Adhesion
3
Cavitation
4
Cohesion
03
PYQ 2023
medium
botany ID: cuet-pg-
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Positive xylem pressure causes exudation of sap through hydathodes, a process called guttation.
Reasons (R): Guttation is noticed when transpiration is suppressed and relative humidity is high.
In the light of the above Statements, choose the correct answer from the options given below:
Assertion (A): Positive xylem pressure causes exudation of sap through hydathodes, a process called guttation.
Reasons (R): Guttation is noticed when transpiration is suppressed and relative humidity is high.
In the light of the above Statements, choose the correct answer from the options given below:
1
Both (A) and (R) are true and (R) is the correct explanation of (A)
2
Both (A) and (R) are true but (R) is NOT the correct explanation of (A)
3
(A) is true but (R) is false
4
is false but (R) is true
04
PYQ 2023
medium
botany ID: cuet-pg-
Vascular bundle, in which the primary xylem is bounded both to the inside and outside by strands of primary phloem, is known as:
1
Collateral bundle
2
Bicollateral bundle
3
Amphivasal bundles
4
Amphicribral bundles
05
PYQ 2023
medium
botany ID: cuet-pg-
Fibers commonly formed in the secondary xylem of tension wood are termed:
1
Substitute fibers
2
Libriform fibers
3
Gelatinous fibers
4
Fiber tracheids