1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

For chemical defence against herbivores, Calotropis has :

A
cardiac glycosides
B
strychnine
C
toxic ricin
D
distasteful quinine
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the following tissues in the stelar region of a stem showing secondary growth.

(A) Primary xylem

(B) Secondary xylem

(C) Primary phloem

(D) Secondary phloem

Arrange these in the correct sequence of their position from pith towards corts.

A
(A), (B), (D), (C)
B
(B), (A), (C), (D)
C
(A), (B), (C), (D)
D
(B), (A), (D), (C)
3
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

Which out of the following statements is incorrect?

A
Grana lamellae have both PS I and PS II
B
Cyclic photophosphorylation involves both PS I and PS II
C
Both ATP and NADPH + H$$^+$$ are synthesised during non-cyclic photophosphorylation.
D
Stroma lamellae lack PS II and NADP reductase
4
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

In angiosperms the correct sequence of events in formation of female gametophyte in the ovule is :

(A) 3 successive free nuclear divisions functional megaspore.

(B) Degeneration of 3 megaspores.

(C) Meiotic division in megaspore mother cell.

(D) Migration of 3 nuclei towards each pole.

(E) Formation of wall resulting in seven celled embryosac.

Choose the correct answer from the options given below :

A
(A), (B), (C), (D), (E)
B
(C), (E), (A), (D), (B)
C
(B), (C), (A), (D), (E)
D
(C), (B), (A), (D), (E)
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