Blog Log in Get Started Free

Botany MCQs for NEET — Practice Questions with Answers

Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

Chapter Language Difficulty Show only questions I answered incorrectly Register free to filter questions

NEET 2025

● ● ● ● ●

Which of the following statements about RuBisCO is true?

A. It is active only in the dark. B. It has higher affinity for oxygen than carbon dioxide. C. It is an enzyme involved in the photolysis of water. D. It catalyzes the carboxylation of RuBP.

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

RuBisCO catalyses the carboxylation of RuBP (fixing CO₂) in the Calvin cycle; it actually has a greater affinity for CO₂ than O₂.

NEET 2025

● ● ● ● ●

Read the following statements on plant growth and development. A. Parthenocarpy can be induced by auxins. B. Plant growth regulators can be involved in promotion as well as inhibition of growth. C. Dedifferentiation is a pre-requisite for re-differentiation. D. Abscisic acid is a plant growth promoter. E. Apical dominance promotes the growth of lateral buds. Choose the option with all correct statements:

A. A, B, C only B. A, C, E only C. A, D, E only D. B, D, E only

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

A, B and C are correct. D is wrong (ABA is an inhibitor/stress hormone) and E is wrong (apical dominance suppresses lateral bud growth).

NEET 2025

● ● ● ● ●

Which factor is important for termination of transcription?

A. $\alpha$ (alpha) B. $\sigma$ (sigma) C. $\rho$ (rho) D. $\gamma$ (gamma)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The rho (ρ) factor is the termination factor required to end transcription in prokaryotes; the sigma (σ) factor is for initiation.

NEET 2025

● ● ● ● ●

Which of the following microbes is NOT involved in the preparation of household products? A. Aspergillus niger B. Lactobacillus C. Trichoderma polysporum D. Saccharomyces cerevisiae E. Propionibacterium sharmanii Choose the correct answer:

A. A and B only B. A and C only C. C and D only D. C and E only

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Aspergillus niger (citric acid) and Trichoderma polysporum (cyclosporin A) are used in industrial products, not household ones. Lactobacillus, Saccharomyces and Propionibacterium are used in household products (curd, bread, cheese).

NEET 2025

● ● ● ● ●

Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?

A. $\dfrac{dN}{dt} = r\left(\dfrac{K-N}{K}\right)$ B. $\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)$ C. $\dfrac{dN}{dt} = rN\left(\dfrac{N-K}{N}\right)$ D. $\dfrac{dN}{dt} = N\left(\dfrac{r-K}{K}\right)$

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The Verhulst–Pearl logistic growth equation is $\dfrac{dN}{dt} = rN\left(\dfrac{K-N}{K}\right)$, where K is the carrying capacity.

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every Botany question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.