Biological Classification Questions

Assertion (A): Archaebacteria can survive in extreme environmental conditions. Reason (R): They possess a cell wall structure different from other bacteria.

Read the following statements regarding Mycoplasma: A. They completely lack a cell wall. B. They are the smallest living cells known. C. They cannot survive without oxygen. D. Many Mycoplasma are pathogenic. Choose the correct option:

Read the following statements regarding bacterial reproduction: A. Bacteria reproduce mainly by binary fission. B. Under unfavourable conditions they form spores. C. DNA transfer occurs between bacteria. D. Sexual reproduction involving gamete format

Read the following statements regarding bacteria: A. Cholera is caused by bacteria. B. Typhoid is a bacterial disease. C. Citrus canker is caused by bacteria. D. AIDS is caused by bacteria. Choose the correct option:

Read the following statements regarding heterotrophic bacteria: A. They are the most abundant bacteria in nature. B. Most are decomposers. C. Some are useful in making curd. D. All are pathogenic. Choose the correct option:

Read the following statements regarding chemosynthetic autotrophic bacteria: A. They oxidise inorganic substances. B. They produce ATP using released energy. C. They help recycle nutrients like nitrogen and sulphur. D. They depend on dead organic mat

Read the following statements regarding cyanobacteria: A. Heterocysts are specialised cells. B. Heterocysts fix atmospheric nitrogen. C. Nostoc possesses heterocysts. D. Heterocysts perform photosynthesis only. Choose the correct option:

Read the following statements regarding cyanobacteria: A. They possess chlorophyll a. B. They are photosynthetic autotrophs. C. They are always multicellular. D. They may be unicellular, colonial or filamentous. Choose the correct option:

Read the following statements regarding Archaebacteria: A. Halophiles live in highly saline habitats. B. Thermoacidophiles are found in hot springs. C. Methanogens occur in the gut of ruminants. D. Archaebacteria possess the same cell wall as eubacte

Read the following statements regarding bacterial nutrition: A. All bacteria are heterotrophic. B. Some bacteria are photosynthetic autotrophs. C. Some bacteria are chemosynthetic autotrophs. D. Majority of bacteria are heterotrophs. Choose the corre

Read the following statements regarding bacterial shapes: A. Cocci are spherical bacteria. B. Bacilli are rod-shaped bacteria. C. Vibrios are spiral-shaped bacteria. D. Spirilla are spiral-shaped bacteria. Choose the correct option:

Read the following statements regarding bacteria: A. Bacteria are the sole members of Kingdom Monera. B. Bacteria are found only in soil and water. C. Some bacteria survive in hot springs and deep oceans. D. Many bacteria live as parasites on other o

Which gas is produced by methanogens?

Methanogens are commonly present in the gut of:

Which one of the following is NOT an extreme habitat for bacteria mentioned in NCERT?

Photosynthetic bacteria contain:

Which group of bacteria synthesises its own food from inorganic substances?

Spiral-shaped bacteria are called:

Spherical bacteria are known as:

Rod-shaped bacteria are called:

Which one of the following bacterial shapes is comma-shaped?

The sole members of Kingdom Monera are:

Read the following statements: A. Earlier classification placed Chlamydomonas under Plantae. B. Amoeba was earlier placed under Animalia. C. Whittaker placed both Chlamydomonas and Amoeba in Protista. D. Protista consists only of prokaryotic organism

Read the following statements regarding biological classification: A. Classification systems have remained unchanged since Aristotle. B. Modern classification considers evolutionary relationships. C. Improvement in knowledge can change classification

Read the following statements regarding Protista: A. It brought together Chlamydomonas and Amoeba in one kingdom. B. It contains only multicellular organisms. C. It includes Chlorella. D. It contains unicellular eukaryotes. Choose the incorrect state

Read the following statements: A. Earlier classification grouped bacteria with plants. B. Blue-green algae are prokaryotic organisms. C. Fungi possess cellulose cell wall. D. Green plants possess cellulosic cell wall. Choose the correct option:

Read the following statements regarding Animalia: A. Cell wall is absent. B. Members are eukaryotic. C. Nutrition is holozoic or saprophytic. D. Nuclear membrane is absent. Choose the correct option:

Read the following statements regarding Kingdom Plantae: A. Members possess cellulose cell wall. B. Body organisation is at tissue or organ level. C. Nutrition is heterotrophic. D. Organisms are eukaryotic. Choose the incorrect statement.

Read the following statements regarding Kingdom Fungi: A. Cell wall contains chitin. B. Members are eukaryotic. C. All fungi are autotrophic. D. Nutrition is mainly saprophytic or parasitic. Choose the correct option:

Read the following statements regarding Kingdom Protista: A. It includes unicellular eukaryotes. B. It includes Amoeba and Paramoecium. C. All members are photosynthetic. D. Chlamydomonas is included in Protista. Choose the incorrect statement.

Read the following statements about Kingdom Monera: A. Organisms are prokaryotic. B. Nuclear membrane is absent. C. Cell wall is made of cellulose. D. Nutrition may be autotrophic or heterotrophic. Choose the correct option:

Read the following statements regarding the Two Kingdom Classification: A. It was proposed by Carolus Linnaeus. B. It distinguished prokaryotes from eukaryotes. C. It classified fungi separately from plants. D. It included all plants under Kingdom Pl

Read the following statements regarding Whittaker's Five Kingdom Classification: A. It was proposed in 1969. B. It is based only on morphology. C. Cell structure was one of the criteria used. D. Phylogenetic relationship was also considered. Choose t

Which one of the following organisms was shifted from Kingdom Plantae to Kingdom Protista in Whittaker's classification?

Modern biological classification aims to reflect:

Which of the following was a major drawback of the Two Kingdom Classification?

Amoeba and Paramoecium are included in Kingdom:

Chlamydomonas and Chlorella are placed under:

Which one of the following was grouped under Plantae in the earlier classification but later placed in Kingdom Fungi?

In the Five Kingdom Classification, Monera is characterised by the absence of:

Which kingdom includes both autotrophic and heterotrophic organisms?

Members of Kingdom Animalia are generally:

Which one of the following kingdoms includes organisms with cellulose cell wall?

The Three-domain system divides Kingdom Monera into:

The cell wall of fungi is mainly composed of:

Which kingdom includes unicellular eukaryotic organisms?

Which kingdom includes all prokaryotic organisms?

The Two Kingdom Classification was proposed by:

According to Aristotle, animals were divided on the basis of:

Aristotle classified plants into: