NCERT BIOLOGY MOCK TEST 5

🟥 QUESTIONS : 25

🟥 TIME : 15 MINS

1 / 25

1) The rate of biomass production is

A) Productivity

B) Photosynthesis

C) Respiration

D) Decomposition

2 / 25

2) (a) Pioneer community is the final biotic community that develops in an area

(b) Pioneer community is soon replaced by the next seral community during on going succession

A) (a) true,( b) false

B) (a) & (b) false

C) (a)& (b) true

D) (a) false,(b) true

3 / 25

3) An individual transitional communities in ecological succession are termed as

A) Climax community

B) Pioneer community

C) Seral community

D) Single community

4 / 25

4) detritus food chain starts from

A) Dead organic matter

B) Green plants

C) Zooplanktons

D) None of the above

5 / 25

5) Which of the following ecosystems is more productive in terms of net primary production

A) Deserts

B) Tropical rainforest

C) Oceans

D) Estuaries

6 / 25

6) What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colleagues

A) US $ 3 trillion a year

B) US $ 18 trillion a year

C) US $ 23 trillion a year

D) US $ 33 trillion a year

7 / 25

7) What is true about ecosystem

A) Primary consumers are at least dependent on producers

B) Primary consumer out - number producers

C) Producers are more than primary consumers

D) Secondary consumers are the largest and powerful

8 / 25

8) Out of the total propsed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are

A) 50%

B) 10%

C) 6%

D) 20%

9 / 25

9) Energy for the detritus food chain comes from

A) Organic remain

B) Air

C) Water

D) Radiation

10 / 25

10) Which one of the following is not a functional unit of an ecosystem

A) Energy flow

B) Productivity

C) Decomposition

D) Stratification

11 / 25

11) Climate community is

A) Stable

B) Self perpetuating

C) Final biotic community

D) All of the above

12 / 25

12) Vertical distribution of different species occupying different levels in a biotic community is known as

A) Divergence

B) Stratification

C) Zonation

D) Pyramid

13 / 25

13) A food web

A) Is more real than food chain

B) Consist of a number of food chains interlinked at various tropic levels

C) Provide a number of alternate food to consumers

D) All of the above

14 / 25

14) The entire sequence of communities that successively changes in a given area are called

A) Sere

B) Climax

C) Pioneer

D) Xerarch

15 / 25

15) The term ecosystem was coined by

A) EP odum

B) AG Tansley

C) E Haeckel

D) E Warming

16 / 25

16) The nature of climax community ultimately depends on

A) Climate

B) Soil organisms

C) Bed rock

D) Pool of available nutrients

17 / 25

17) Protein is a ..............

A) Homoploymer

B) Heteropolymer

18 / 25

18) Most abundant protein in plants is ..........

A) RuBisCO

B) Hemoglobin

C) Callagen

D) Chloroplast

19 / 25

19) Cellulose is a polymer of ?

A) Glucose

B) Fructose

C) Starch

D) Lipids

20 / 25

20) Inulin is a Polymer of ?

A) Fructose

B) Cellulose

C) Starch

D) Glucose

21 / 25

21) In a polysaccharide Chain Right end is called the ?

A) Reducing end

B) Non reducing end

22 / 25

22) Which of following structure of Starch can Hold I2 molecules and gives blue colour ?

A) Secondary structure

B) Primary structure

C) Tertiary structure

D) Quaternary structure

23 / 25

23) Lecithin is a ..............

A) Steroid

B) Glycolipid

C) Phospholipid

D) Carbohydrate

24 / 25

24) Which of the following is inorganic co factor ?

A) Heme

B) Cadmium

C) Zinc

D) Both 2 and 3

25 / 25

25) Chitin is a ..........

A) Homopolymer

B) Heteropolymer

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NCERT BIOLOGY MOCK TEST 5

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