Which of the following statements about the light reaction of photosynthesis is INCORRECT?

The correct answer is C: It requires CO2 as a substrate. Light reactions do not require CO2. CO2 is used in the dark reaction (Calvin cycle). Light reactions produce ATP, NADPH, and O2.

Which of the following is NOT a characteristic of angiosperms compared to gymnosperms?

The correct answer is C: Presence of two cotyledons in all species. Angiosperms can be monocots (one cotyledon) or dicots (two cotyledons), so not all angiosperms have two cotyledons.

In xerophytes, which anatomical feature reduces water loss?

The correct answer is B: Sunken stomata and thick waxy cuticle. Xerophytes have sunken stomata (reducing direct exposure) and thick, waxy cuticles to minimize transpiration.

The phenomenon of radial vascular bundles is characteristic of:

The correct answer is A: Dicot roots with alternating xylem and phloem. Radial arrangement of xylem and phloem in alternate pattern is typical of dicot roots, where xylem arms point toward the periphery and phloem patches lie between them.

Which anatomical adaptation is specific to insectivorous plants like pitcher plants?

The correct answer is B: Modified leaves forming pitcher-like traps with specialized glandular tissue. Insectivorous plants have anatomically modified leaves (pitchers, traps) with specialized glandular and digestive tissues to trap and digest insects.

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NEET Botany
Plant Kingdom

Botany questions for NEET UG — Plant Anatomy, Physiology, Reproduction, Ecology.

51 Q 3 Topics Take Mock Test

Difficulty: All Easy Medium Hard 51–51 of 51

Topics in NEET Botany

All Plant Kingdom 100 Plant Anatomy 100 Plant Physiology 76

Q.51 Medium Plant Kingdom

Which structure in bryophytes prevents water loss?

A Rhizoids

B Cuticle

C Stomata

D Xylem vessels

Correct Answer: B. Cuticle

EXPLANATION

Bryophytes have a waxy cuticle that reduces water loss, though it's not as effective as in higher plants due to absence of stomata.

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NEET Botany Plant Kingdom

NEET Botany
Plant Kingdom