Curriculum
Course: IAL Edexcel Modular
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Curriculum

IAL Edexcel Modular

Unit 1: Lifestyle, Transport, Genes and Health

0/16 Dr Dabour Hub Science Diagram and Course Material

Unit 2: Cells, Development, Biodiversity and Conservation

0/16 Dr Dabour Hub Science Diagram and Course Material

Unit 3: Practical Skills in Biology I

0/6 Dr Dabour Hub Science Diagram and Course Material

Unit 4: Energy, Environment, Microbiology and Immunity

0/14 Dr Dabour Hub Science Diagram and Course Material

Unit 5: Respiration, Internal Environment, Coordination and Gene Technology

0/13 Dr Dabour Hub Science Diagram and Course Material

Unit 6: Practical Skills in Biology II

0/4 Dr Dabour Hub Science Diagram and Course Material
Quiz

Ecosystems & Energy Transfer – Check yourself

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Ecosystems & Energy Transfer IAL Modular Biology check yourself quiz: free practice for IAL Edexcel Modular. Work through this Ecosystems & Energy Transfer IAL Modular Biology check yourself quiz and get instant feedback on every answer. If you get stuck, review the 4.2 Ecosystems & Energy Transfer — IAL Biology Notes lesson. More practice: IAL Edexcel Modular — all units. Syllabus: Pearson Edexcel International A Levels.

  • Questions count: 17
  • Passing grade: B
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1.

Gross primary productivity (GPP) is

the energy lost in respiration
the energy passed to consumers
the mass of producers
the rate at which energy is incorporated into organic molecules by producers
2.

Net primary productivity is

GPP plus respiration
energy absorbed by the leaf
GPP minus respiratory losses
energy in decomposers
3.

Only about 10 % of energy is passed between trophic levels because

energy is lost in respiration, in uneaten parts and in faeces
energy is destroyed
consumers are larger
light is reflected
4.

If producers fix 20 000 kJ m⁻² y⁻¹ and primary consumers assimilate 2500 kJ m⁻² y⁻¹, the efficiency of transfer is

8 %
25 %
1.25 %
12.5 %
5.

Succession is

the transfer of energy
the change in the community of an area over time
the cycling of carbon
a type of competition
6.

Pioneer species

form the climax community
are top predators
colonise bare ground and can tolerate harsh conditions
are always trees
7.

A climax community is

the first community
a community with no producers
a community of pioneers
a relatively stable community at the end of succession
8.

The distribution and abundance of organisms is affected by

abiotic factors only
biotic factors only
chance only
biotic and abiotic factors
9.

A habitat is

the place where an organism lives
the role of an organism
all the populations in an area
the non-living environment only
10.

A community is

all the organisms of one species
all the populations of different species living in one area
the abiotic environment
a food chain
11.
IGCSE Biology 19.1 Energy flow and consumers - Question 1
IGCSE Biology 19.1 Energy flow and consumers - Question 1
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12.
IGCSE Biology 19.1 Energy flow and consumers - Question 2
IGCSE Biology 19.1 Energy flow and consumers - Question 2
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B
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13.
IGCSE Biology 19.2 Food chains, food webs and pyramids - Question 1
IGCSE Biology 19.2 Food chains, food webs and pyramids - Question 1
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B
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14.
IGCSE Biology 19.2 Food chains, food webs and pyramids - Question 2
IGCSE Biology 19.2 Food chains, food webs and pyramids - Question 2
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B
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15.
IGCSE Biology 19.4 The nitrogen cycle - Question 1
IGCSE Biology 19.4 The nitrogen cycle - Question 1
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16.
IGCSE Biology 19.4 The nitrogen cycle - Question 2
IGCSE Biology 19.4 The nitrogen cycle - Question 2
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17.
According to the comparison table in this lesson, what is the Data of Sampling?
According to the comparison table in this lesson, what is the Data of Sampling?
Core practical skills
% mass change
Mean density
Rf values
Rate vs temperature
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Part of Unit 4: Energy, Environment, Microbiology and Immunity — see every lesson and quiz in this unit.
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