FREE NEET Biology Practice MCQ Test: Biological Classification Exercise 3 Questions Answers With Detailed Explanations [PDF]

Answer: (b)

A - Cocci (spherical), B - Bacilli (rod shaped), C - Spirilla (spiral), D - Vibrio (comma shaped). These are all the shapes of the bacteria.

Answer: (c)

Answer: (d)

Answer: (d)

Answer: (a)

Answer: (b)

Answer: (d)

Maximum number of antibiotics are produced by mycelial bacteria known as actinomycetes and most of the actinomycetes are saprotrophic (heterotrophic). Lactic acid bacteria that are used in preparation of curd are also heterotrophic ones.

Answer: (c)

Answer: (b)

Phycomycetes, ascomycetes, basidiomycetes and deuteromycetes are four classes of fungi which are divided on the basis of the septation of the mycelium and the characteristics features of reproduction. Phycomycetes, ascomycetes, basidiomycetes and deuteromycetes are respectively commonly known as algal like fungi, sac fungi, club fungi and fungi imperfecti.

Answer: (b)

Viruses are nucleoprotein entities which are able to utilize synthetic machinery of a living cell of the host organism for its multiplication which does not involve growth and division. They have either RNA or DNA as genetic material and a protein coat.

Answer: (d)

The class Basidiomycetes includes those members that produce their basidia and basidiospores on or in a basidiocarp.

Answer: (a)

Answer: (a)

The infective stage of Plasmodium is a minute organism called sporozoite. When the mosquito bites man, sporozoites present in the salivary gland of female Anopheles mosquito are injected into the blood of the man. These sporozoites are spindle - shaped or sickle - shaped uninucleate organisms capable of wrigging (worm - like) movements. Each sporozoite consists of elastic pellicle, cytoplasm and nucleus.

Answer: (a)

Compared to many other group, monerans (bacteria) show the most extensive metabolic diversity. Some of the bacteria are autotrophic, i.e., they synthesize their own food from inorganic substrates. They may be photosynthetic autotrophic or chemosynthetic autotrophic. The vast majority of bacteria are heterotrophs, i.e., they do not synthesize their own food but depend on other organisms or on dead organic matter for food.

Answer: (b)

Answer: (b)

Bladderwort and venus fly trap are partially antotrophs. They trap insects for obtaining nitrogen and are called insectivorous plants e.g. itcher plant.

Answer: (c)

Answer: (a)

Answer: (b)

Answer: (d)

Pseudomycelium is characteristic feature of yeast.