Biology Class 11th Chapter 2 mcqs

1. The scientist who created the group protista for both unicellular plants and animals is

(a) haecke

(b) Pasteur

(c) lister

(d) Koch

Answer: (a) haecke

2. Binomial nomenclature was given by

(a) Huxley

(b) ray

(c) Darwin

(d) Linnaeus

Answer: (d) Linnaeus

3. Which of the following is an indicator of air pollution?

(a) Mycorrhiza

(b) Agaricus

(c) Lichens

(d) Common mushrooms

Answer: (c) Lichens

4. The natural system of Classification is based on

(a) morphology

(b) evolutionary trend

(c) anatomy

(d) all of the above

Answer: (d) all of the above

5. Potato spindle tuber disease is caused by

(a) Phycobionts

(b) Virus

(c) Bacteria

(d) Viroids

Answer: (d) Viroids

6. Quinine is obtained from

(a) Puccinia

(b) Neurospora

(c) Gonyaulax

(d) Cinchona

Answer: (a) Puccinia

7. According to five-kingdom classification, which of the following does not contain nuclear membrane?

(a) Protista

(b) Monera

(c) Fungi

(d) Animalia

Answer: (b) Monera

8. Two organisms of the same class but different families will be kept under the same

(a) genera

(b) species

(c) order

(d) family

Answer: (c) order

9. Bacteria that live in hot springs are called

(a) Halophiles

(b) Thermoacidophiles

(c) Methanogens

(d) None of the above

Answer: (b) Thermoacidophiles

10. Which amongst kingdom animalia has become recently extinct?

(a) snow leopard

(b) indian macaque

(c) cheetah

(d) tiger

Answer: (c) cheetah

11. Red tides in sea appear due to

(a) Euglena

(b) Chrysophytes

(c) Dinoflagellates

(d) Diatoms

Answer: (c) Dinoflagellates

12. The asexual spores are not found, vegetative reproduction occurs by fragmentation and sexual organs are absent. Identify the class of fungi.

(a) Phycomycetes

(b) Ascomycetes

(c) Basidiomycetes

(d) Deuteromycetes

Answer: (c) Basidiomycetes

13. Match the columns:
14. Basidiomycetes – A. Agaricus
15. Ascomycetes – B. Albugo
16. Phycomycetes – C. Trichoderma
17. Deuteromycetes – D. Saccharomyces

(a) 1-D, 2-A, 3-B, 4-C

(b) 1-A, 2-D, 3-B, 4-C

(c) 1-A, 2-B, 3-D, 4-C

(d) 1-C, 2-D, 3-A, 4-B

Answer: (b) 1-A, 2-D, 3-B, 4-C

14. Trypanosoma causes

(a) Dysentry

(b) Mumps

(c) Sleeping sickness

(d) Cholera

Answer: (c) Sleeping sickness

15. The two kingdom Classification was given by

(a) c.linnaeus

(b) john ray

(c) Huxley

(d) whittaker

Answer: (c) Huxley

16. Choose the correct pair.

(a) Parasitic fungi – feeds on plants and animals

(b) Saprotrophic fungi – feeds on dead and decaying organic matter

(c) Symbiotic fungi – mycorrhiza

(d) All of the above are true

Answer: (d) All of the above are true

17. Which of the following is used in biochemical and genetic work?

(a) Claviceps

(b) Aspergillus

(c) Neurospora

(d) Mucor

Answer: (c) Neurospora

18. If a scientist has to names a similar species he should study the

(a) Holotype

(b) syntype

(c) mesotype

(d) isotype

Answer: (d) isotype

19. Which of the following is not a viral disease?

(a) AIDS

(b) Herpes

(c) Tuberculosis

(d) Smallpox

Answer: (c) Tuberculosis

20. Choose the correct match.

(a) Photosynthetic autotrophs – Nutrient recycling

(b) Chemosynthetic autotrophs – Nitrogen fixation

(c) Heterotrophic bacteria – Production of antibiotics

(d) Mycoplasma – Production of curd

Answer: (c) Heterotrophic bacteria – Production of antibiotics