Which of the following is an example of an insectivorous plant? MCQ with Answer and Explanation

Which of the following is an example of an insectivorous plant?
A. Drosera
B. Monotropa
C. Rhizobium
D. Cuscuta
Answer: Option A
Solution (By JKExamLibrary)
Drosera (sundew) is an insectivorous plant that captures insects with sticky tentacles on leaves to supplement nitrogen in nutrient-poor soils. Cuscuta is a parasitic plant, Monotropa is saprophytic, Rhizobium is a bacterium, not a plant. Insectivorous plants include pitcher plant (Nepenthes), Venus flytrap, and bladderwort. They are autotrophic but supplement nitrogen.

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Practice More Biology Questions

Question #1
The iron-containing protein in RBCs that transports oxygen is:
A. Albumin
B. Collagen
C. Hemoglobin
D. Myoglobin

Correct Answer: Option C


Explanation:
Hemoglobin in red blood cells binds oxygen in the lungs and releases it in tissues. Each hemoglobin molecule can bind four O₂ molecules. It also carries some CO₂.

This question belongs to: Science Biology
Question #2
Consider statements about ecology: 1. Primary productivity is the rate of biomass production by producers. 2. Secondary productivity is the rate of new biomass creation by consumers. 3. Decomposition rate is independent of temperature. Which are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3

Correct Answer: Option A


Explanation:
Primary productivity is the rate at which autotrophs (producers) convert solar energy into chemical energy (biomass) through photosynthesis. Secondary productivity is the rate at which heterotrophs (consumers) assimilate food to create new organic matter (biomass). Decomposition is a biological process carried out by microbes, and its rate is highly dependent on environmental factors like temperature, moisture, and oxygen availability; warmer temperatures generally increase decomposition. Thus, statements 1 and 2 are correct.

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Question #3
The scientist who discovered the bacterium that causes leprosy was:
A. Albert Neisser
B. Louis Pasteur
C. Gerhard Armauer Hansen
D. Robert Koch

Correct Answer: Option C


Explanation:
G.H.A. Hansen discovered Mycobacterium leprae in 1873, the first bacterium identified as causing a human disease. Koch later discovered TB.

This question belongs to: Science Biology