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Biology GCSE Revision Worksheet

Photosynthesis and Energy flows

TASK 1: annotate onto the following diagram using page 151 of your
textbook, highlighting the photosynthesis process. Also make sure you
include the photosynthesis equation.

TASK 2: What are the three limiting factors of photosynthesis? Draw three
graphs to show these and…

Page 2

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Mineral Ion Why Needed? Deficiency symptoms


TASK 4: Complete exam-style questions on page 160-1 of textbook.

TASK 5: a) Define biomass, pyramid of numbers, pyramid of biomass.

b) Draw two pyramids below to show a food chain ­ one for pyramid of
numbers, and one for pyramid of…

Page 3

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TASK 8: Why are animals prevented from moving much and kept indoors in
intensive farming? Why is this beneficial to farmers? What arguments could
we have against this idea?

TASK 9: Define `decomposers, detritus feeders, compost heap', and then
explain conditions for decay to occur, relating to enzymes in your…


Chloe-Ann Duell


good website

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