Class 11 Biology Chapter 2 MCQ. We covered all the Class 11 Biology Chapter 2 MCQ in this post for free so that you can practice well for the exam.
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Biology MCQ for NEET Students
Identify the organisms that lack a cell wall, can survive without oxygen, and can be pathogenic in some animals and plants.
(A) Fungi
(B) Dinoflagellates
(C) Mycoplasma
(D) Archaebacteria
Option c – Mycoplasma
Prions are responsible for causing which of the following disease in humans?
(A) Cr-Jacob disease
(B) AIDS
(C) Herpes
(D) Bovine spongiform encephalopathy
Option a – Cr-Jacob disease
The plant Triticum aestivum belongs to
(A) Phylum Angiospermae
(B) Order Sapindales
(C) Class Dicotyledonae
(D) Both (A) and (C)
Option a – Phylum Angiospermae
Complete the analogy given below. Man : Hominidae :: Tiger :
(A) Canidae
(B) Carnivora
(C) Panthera
(D) Felidae
Option d – Felidae
……. have collections of living plants for reference.
(A) Museums
(B) Herbariums
(C) Botanical Gardens
(D) All of these
Option c – Botanical Gardens
Dogs and cats belong to the same
(A) Family
(B) Genus
(C) Order
(D) Species
Option c – Order
Identify which of the following statements is TRUE.
(A) Viruses can infect but viroids are noninfectious agents.
(B) Viruses have only RNA whereas viroids have DNA.
(C) Viruses have a protein coat, whereas viroids lack a protein coat.
(D) Potato spindle tuber disease is caused by viruses, whereas mosaic formation in plants occurs due to viroids.
Option c – Viruses have a protein coat, whereas viroids lack a protein coat
Identify the odd one out.
(A) Poales
(B) Felidae
(C) Sapindales
(D) Carnivora
Option b – Felidae
Which of the following is considered a defining property of living organisms?
(A) Increase in mass
(B) Growth
(C) Cellular organization
(D) Reproduction.
Option c – Cellular organization
(A) Order
(B) Genera
(C) Class
(D) Division
Option b – Genera
Housefly belongs to the family
(A) Muscidae
(B) Hominidae
(C) Convolvulaceae
(D) Felidae
Option a – Muscidae
Identify the odd one out.
(A) Homo sapiens – Primata
(B) Musca domestica – Diptera
(C) Mangifera indica – Anacardiaceae
(D) Triticum aestivum – Poales
Option c – Mangifera indica – Anacardiaceae
Consciousness is a defining property of living organisms. Which of the following statements best explains this fact?
(A) All organisms are aware of themselves and are self-conscious.
(B) All organisms respond to environmental cues.
(C) We are unsure if brain-dead organisms are living or not.
(D) This feature can be demonstrated in vitro in cell-free systems.
Option b – All organisms respond to environmental cues.
According to binomial nomenclature, the scientific name of potato is printed as
(A) Solanum tuberosum
(B) Solanum tuberosum
(C) Solanum Tuberosum
(D) Solanum tuberosum
Option b – Solanum tuberosum
Which of the following statement is INCORRECT with respect to Deuteromycetes?
(A) Only the asexual or vegetative phases of these fungi are known.
(B) mycelium is aseptate and coenocytic.
(C) They reproduce only by asexual spores known as conidia.
(D) They are commonly known as imperfect fungi.
Option b – mycelium is aseptate and coenocytic.
Which of the following is INCORRECT regarding heterotrophic bacteria?
(A) Curdling of milk is carried out by these bacteria.
(B) They fix nitrogen in leguminous plant roots.
(C) They are capable of causing diseases like cholera, typhoid, and tetanus.
(D) They belong to the kingdom Protista.
Option d – They belong to the kingdom Protista.
Which of the following is referred to as true bacteria?
(A) Archaebacteria
(B) Chrysophytes
(C) Eubacteria
(D) Euglenoids
Option c – Eubacteria
Complete the following analogy. Trypanosoma: Flagellated Protozoa Paramoecium: ……….
(A) Sporozoa
(B) Ciliated protozoa
(C) Amoeboid protozoa
(D) Slime mould
Option b – Ciliated protozoa
…….. are known as the chief producers in the oceans.
(A) Dinoflagellates
(B) Diatoms
(C) Euglenoids
(D) Slime molds
Option b – Diatoms
The phenomenon of red tides in the ocean occurs due to
(A) diatoms
(B) dinoflagellates
(C) desmids
(D) mycoplasma
Option b – dinoflagellates
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