Class XI · Biology practice

Biological Classification MCQs

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300 questions in this collection · Page 9 of 30

Question 81 of 300

📘 CLASS XI

Biological Classification

Some fungi are described as coprophilous. This means that they naturally grow on:

Coprophilous fungi grow on dung. Many ascomycetes are saprophytic, decomposers, parasitic or coprophilous.

Question 82 of 300

📘 CLASS XI

Biological Classification

Slime moulds are considered to be ________ protists because their body moves along decaying twigs and leaves engulfing organic material.

Slime moulds are saprophytic protists. Their body moves along decaying organic matter and engulfs nutrients.

Question 83 of 300

📘 CLASS XI

Biological Classification

Which scientist developed a two-kingdom classification system consisting exclusively of Plantae and Animalia?

Linnaeus proposed the Two Kingdom Classification consisting of Plantae and Animalia.

Question 84 of 300

📘 CLASS XI

Biological Classification

Viruses are considered obligate parasites because they:

Viruses remain inert outside a living host cell and reproduce only after taking over the host cell machinery.

Question 85 of 300

📘 CLASS XI

Biological Classification

While Amoeba captures its prey using pseudopodia, Paramoecium directs food into its gullet using the coordinated movement of:

Paramoecium uses coordinated ciliary movement to direct food into the gullet.

Question 86 of 300

📘 CLASS XI

Biological Classification

Mycoplasma are unique among bacteria because they:

Mycoplasma are the smallest living cells and completely lack a cell wall.

Question 87 of 300

📘 CLASS XI

Biological Classification

Which of the following is absent in members of Basidiomycetes?

Basidiomycetes lack sex organs. Plasmogamy occurs through fusion of vegetative or somatic cells.

Question 88 of 300

📘 CLASS XI

Biological Classification

While Ascomycetes are mostly multicellular (like Penicillium), which of the following is an example of a rare unicellular ascomycete?

Yeast (Saccharomyces) is a rare unicellular member of Ascomycetes.

Question 89 of 300

📘 CLASS XI

Biological Classification

According to Whittaker's Five Kingdom Classification, which kingdom possesses a cellular body organisation but fundamentally lacks a nuclear membrane?

Members of Kingdom Monera are prokaryotic and therefore lack a nuclear membrane.

Question 90 of 300

📘 CLASS XI

Biological Classification

In ciliated protozoans, what is the function of the gullet?

The coordinated beating of cilia directs food-laden water into the gullet.

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