Please refer to the MCQ Questions for Class 11 Biology Chapter 2 Biological Classification with Answers. The following Biological Classification Class 11 Biology MCQ Questions have been designed based on the latest syllabus and examination pattern for Class 11. Our experts have designed MCQ Questions for Class 11 Biology with Answers for all chapters in your NCERT Class 11 Biology book.
Biological Classification Class 11 MCQ Questions with Answers
See below Biological Classification Class 11 Biology MCQ Questions, solve the questions and compare your answers with the solutions provided below.
MCQs
Question. RNA retroviruses have a special enzyme that:
a. Transcribles viral RNA to cDNA
b. Translates host DNA
c. Disintegrates host DNA
d. Polymerises host DNA
Answer
A
Question. Severe Acute respiratory syndrome (SARS):
a. Is caused by a variant of common cold virus (Corona virus)
b. Is an acute form of asthma
c. Affects non-vegetarians faster than vegetarians
d. Is caused by a variant of Pneumococcus pneumoniae
Answer
A
Question. Potato Spindle Tuber disease is caused due to:
a. Viroid
b. Virus
c. Bacterium
d. Nematode
Answer
A
Question. The smallest organisms which cause diseases among plants are:
a. Mycoplasma
b. Fungi
c. Bacteria
d. Viruses
Answer
A
Image Based Questions
Question. In a bacteriophage, select the correct information?
a. A – Head, B – Neck
b. A – Head, D – Sheath
c. B – Collar, D – Tail fibres
d. C – Sheath, A – Collar
Answer
C
Question. Name the virus and identify the correct statement about it:
a. Genetic material is single stranded DNA
b. Elongated capsid
c. Reverse transcriptase enzyme is present
d. It is an animal virus
Answer
B
Question. Name the labeled part of Bacteriophage.
a. Neck
b. Sheath
c. Coiled circular double stranded DNA
d. Collar
Answer
B
Question. Trichonympha is a symbiont in alimentary canal of:
a. Termite
b. Snails
c. Hermit Crab
d. Earthworm
Answer
A
Question. The members of which of the following are litter decomposers?
a. Deuteromycetes
b. Ascomycetes
c. Basidiomycetes
d. Phycomycetes
Answer
A
Question. Quinine is got from bark of:
a. Cinchona officinalis
b. Ferula asafoetida
c. Curcuma domestica
d. Atropa belladona
Answer
A
Question. From which of the following most of the antibiotics are prepared?
a. Fungi
b. Plants
c. Actinomycetes
d. Archaebacteria
Answer
A
Question. Which of the following shows extensive metabolic diversity?
a. Humans
b. Fungi
c. Snakes
d. Blue – green algae
Answer
D
Question. Which of the following there is no mention in Whittaker’s classification?
a. Virus
b. Viroids
c. Lichens
d. All of these
Answer
D
Question. Four kingdom system of classification was proposed by:
a. Whittaker
b. Copeland
c. Linnaeus
d. Oswald Tippo
Answer
B
Question. Which of the following organisms were never included in Protista?
a. Bacteria
b. Red algae
c. Slime moulds
d. Mosses
Answer
D
Question. Biochemical resemblances are used in the identification of:
a. Protistan species
b. Moneran species
c. Fungal species
d. Higher plants
Answer
B
Question. Whittaker is famous for :-
a. Two kingdom classification
b. Four kingdom classification
c. Five kingdom classification
d. Distinguishing in Bacteria & blue gree Algae
Answer
C
Question. Which characteristic placed the fungi in a separate kingdom?
a. Cell wall composition
b. Cell wall structure
c. Nutrition
d. Nuclear membrane
Answer
A
Question. Peptidoglycan / Murein is present in the cell wall of
a. Animals
b. Plants
c. Fungi
d. Bacteria
Answer
D
Question. Old name of Blue green algae:
a. Cyanobacteria
b. Myxophyceae
c. Spectrum algae
d. None of these
Answer
B
Question. Who divided the animals into 2 groups, those which had red blood and those that did not?
a. Whittaker
b. T.O. Diener
c. Aristotle
d. W.M. Stanley
Answer
C
Question. Basis of classification according to Whittaker
a. Cell structure
b. Mode of reproduction
c. Phylogenetic relationship
d. All of these
Answer
D
Question. New name of Blue green algae:
a. Chlorella
b. Spirulina
c. Cyanobacteria
d. None of these
Answer
C
Question. Which of the following found in harsh habitat?
a. Eubacteria
b. Cyanobacteria
c. Archaebacteria
d. None of these
Answer
C
Question. Ray fungi is a/an
a. Eubacteria
b. Algae
c. Flower
d. Fungi
Answer
A
Question. Certain stages of Plasmodium vivax may survive for a long time in liver of man in dormant state. On reactivation they enter into cycle, this stage is known as:
a. Exoerythocytic schizogony
b. Cycle of Ross
c. Gametogony
d. Erythrocytic schizogony
Answer
D
Question. Malarial parasite is:
a. Polygenetic
b. Monogenetic
c. DigeneticEWW8E9R
d. Monomorphic
Answer
C
Question. O2 does not evolve in the photosynthesis of
a. BGA
b. Green algae
c. Bacteria
d. Autotrophic plant
Answer
C
Question. The wall of bacteria consist of
a. n – acetyl glucosamine
b. n – acetyl muramic acid
c. Both (a) & (b)
d. Cellulose
Answer
C
Question. Acellular slime mould:
a. Physarum
b. Physarella
c. Both of these
d. None of these
Answer
A
Question. Which one of the following sets includes the bacterial diseases?
a. Diptheria, Leprosy, Plague
b. Tetanus, Tuberculosis, Measles
c. Malaria, Mumps, Poliomyelitis
d. Cholera, Typhoid, Mumps
Answer
A
Question. The folds of plasma membrane in bacterial cells are known as:
a. Episomes
b. Spherosomes
c. Mesosomes
d. Acrosomes
Answer
C
Question. Amoeba secretes digestive enzymes for hydrolysing:
a. Protein
b. Starch
c. Fat
d. All the above
Answer
D
Question. A Dutch scientist A.V. Leeuwenhoeck discovered bacteria for the first time in:
a. Soil
b. Rain water
c. Air
d. Garden soil
Answer
B
Question. Bacteria responsible for nitrificatin come under the following groups:
a. Bacillus
b. Vibrio
c. Coccus
d. Spirilla
Answer
A
Question. In cyanophyceae, flagella are:
a. Present in zoospores only
b. Present
c. Present in gamete stage only
d. Absent
Answer
D
Question. The main difference in Gram (+)ve and Gram (-)ve bacteria resides in their:
a. Flagella
b. Cell membrane
c. Cytoplasm
d. Cell wall
Answer
D
Question. Bacteria lack alternation of generations because there is:
a. No exchange of genetic material
b. Distinct chromosomes are absent
c. No conjugation
d. Neither syngamy nor reduction division
Answer
D
Question. Endospores develop in:
a. Bacillus and Clostridium
b. Saccharomyces and Clostridium
c. Mnococcus and Clostridium
d. Mucor and Bacillus
Answer
A
Question. Whittaker is famous for :-
a. Two kingdom classification
b. Four kingdom classification
c. Five kingdom classification
d. Distinguishing in Bacteria & blue gree Algae
Answer
C
Question. Match the columns and find the correct answer:
Column I Column II
A. Streptomyces 1. Food poisoning
B. Rhizobium 2. Source antibiotics
C. Nitrosomonas 3. Nitrogen fixation
D. Acetobacter 4. Nitrification
5. Vinegar synthesis
a. A-2 B-3 C-4 D-5
b. A-5 B-2 C-3 D-4
c. A-2 B-3 C-1 D-5
d. A-4 B-5 C-1 D-3
Answer
A
Question. Murein does not occur in the wall of:
a. Blue green algae
b. Nostoc
c. Eubacteria
d. Diatoms
Answer
D
Question. Trypanosoma brucei produces:
a. A disease of animals
b. Kala-azar
c. Dysentery
d. Sleeping sickness
Answer
A
Question. Entamoeba coil causes:
a. None
b. Diarrhoea
c. Dysentery
d. Pyorrhoea
Answer
A
Question. Infection of Entamoeba histolytica is prevented by:
a. Uncontaminated food
b. Avoiding clothes of patient
c. Avoiding kissing
d. None of the above
Answer
A
Question. Recurrence of high temperature in malaria at intervals is due to completion of:
a. Exoerythrocytic schizogony
b. Sporogony
c. Gamogony
d. Erythrocytic schizogony
Answer
D
Question. Which of the following organisms were never included in Protista?
a. Bacteria
b. Red algae
c. Slime moulds
d. Mosses
Answer
D
Question. What is not true of Euglena?
a. Presence of cellulose cell wall
b. Presence of proteinaceous pellicle
c. Presence of chlorophyll
d. Presence of flagellum
Answer
A
Question. Which of the following shows extensive metabolic diversity?
a. Humans
b. Fungi
c. Snakes
d. Blue – green algae
Answer
D
Question. Which of the following is aerobic in nature?
a. Halophiles
b. Methanogens
c. Thermoacidophiles
d. None of these
Answer
A
Question. Who is the Joker of plant kingdom?
a. Mycoplasma
b. Chlorella
c. Chlamydomonas
d. Spirullina
Answer
A
Question. Mycoplasma is:
a. Insensitive to penicillin, sensitive to tetracycline
b. Insensitive to tetracycline, sensitive to penicillin
c. Sensitive to both penicillin & tetracycline
d. None of these
Answer
A
Question. Plasmids was given by
a. Tatum
b. Lederberg
c. Zinder
d. Griffith
Answer
B
Question. Which type of plasmid contains Antibiotic resistance gene?
a. “R”- factor
b. “S”- factor
c. “G” – factor
d. “r” – factor
Answer
A
Question. Ray fungi is a/an
a. Eubacteria
b. Algae
c. Flower
d. Fungi
Answer
A
Question. O2 does not evolve in the photosynthesis of
a. BGA
b. Green algae
c. Bacteria
d. Autotrophic plant
Answer
C
Question. Pigment present in cynobacteria is the
a. r – phycocyanin
b. r – phycoerythrin
c. c – phycocyanin
d. Anthocyanins
Answer
C
Question. The wall of bacteria consist of
a. n – acetyl glucosamine
b. n – acetyl muramic acid
c. Both (a) & (b)
d. Cellulose
Answer
C
Question. Which one of the following sets includes the bacterial diseases?
a. Diptheria, Leprosy, Plague
b. Tetanus, Tuberculosis, Measles
c. Malaria, Mumps, Poliomyelitis
d. Cholera, Typhoid, Mumps
Answer
A
Question. The folds of plasma membrane in bacterial cells are known as:
a. Episomes
b. Spherosomes
c. Mesosomes
d. Acrosomes
Answer
C
Question. A Dutch scientist A.V. Leeuwenhoeck discovered bacteria for the first time in:
a. Soil
b. Rain water
c. Air
d. Garden soil
Answer
B
Question. Viruses that infect animals have which type of genetic material?
a. Either single or double stranded RNA
b. Either single/double stranded RNA or double stranded DNA.
c. Single stranded DNA
d. None of these
Answer
B
Question. Genetic material of bacteriophage
a. Double stranded DNA
b. Single stranded RNA
c. Double stranded RNA
d. Single stranded DNA
Answer
A
Question. Bacteria responsible for nitrificatin come under the following groups:
a. Bacillus
b. Vibrio
c. Coccus
d. Spirilla
Answer
A
Question. In cyanophyceae, flagella are:
a. Present in zoospores only
b. Present
c. Present in gamete stage only
d. Absent
Answer
D
Question. Bacteria were discovered by:
a. Robert Koch
b. A.V. Leeuwenhoek
c. Robert Hooke
d. Louis Pasteur
Answer
B
Question. Which of the pigment present in cyanobacteria?
a. Chlorophyll ‘a’
b. Chlorophyll ‘b’
c. Chlorophyll ‘c’
d. Xanthophylls
Answer
A
Question. Colonies of Eubacteria is surrounded by
a. Polysaccharide sheath
b. Gelatinous sheath
c. Mucous sheath
d. None of these
Answer
B
Question. Which of the following shows pendulum movement and fix atmospheric nitrogen?
a. Nostoc
b. Anabaena
c. Oscillatoria
d. Rhodospirillum
Answer
C
Question. Which of these is a bacterial disease?
a. Chlorella
b. Measles
c. Citrus canker
d. Both (a) & (c)
Answer
D
Question. Diphtheria is caused by:
a. Diplococcus
b. Bacillus
c. Corynebacterium
d. Vibrio
Answer
C
Question. The main difference in Gram (+)ve and Gram (-)ve bacteria resides in their:
a. Flagella
b. Cell membrane
c. Cytoplasm
d. Cell wall
Answer
D
Question. Currently bacteria are included in:
a. Thallophyta
b. Monera
c. Mycota
d. Protista
Answer
B
Question. An obligate anaerobe is:
a. Ulothrix
b. Methane bacteria
c. Spirogyra
d. Onion
Answer
B
Question. Bacteria lack alternation of generations because there is:
a. No exchange of genetic material
b. Distinct chromosomes are absent
c. No conjugation
d. Neither syngamy nor reduction division
Answer
D
Question. Endospores develop in:
a. Bacillus and Clostridium
b. Saccharomyces and Clostridium
c. Mnococcus and Clostridium
d. Mucor and Bacillus
Answer
A
Question. Infection of Entamoeba histolytica is prevented by:
a. Uncontaminated food
b. Avoiding clothes of patient
c. Avoiding kissing
d. None of the above
Answer
A
Question. Recurrence of high temperature in malaria at intervals is due to completion of:
a. Exoerythrocytic schizogony
b. Sporogony
c. Gamogony
d. Erythrocytic schizogony
Answer
D
Question. Euglena stores food as:
a. Paramylum
b. Starch
c. Fat
d. Protein
Answer
A
Question. Which of the following can be used as bacteriological filter?
a. Cymbella
b. Batrachospermum
c. Oscillatoria
d. Gelidium
Answer
A
Question. What is not true of Euglena?
a. Presence of cellulose cell wall
b. Presence of proteinaceous pellicle
c. Presence of chlorophyll
d. Presence of flagellum
Answer
A
Question. Chief producers in oceans are
a. Diatoms
b. Desmids
c. Archaebacteria
d. All of these
Answer
A
