Plants make their own food by photosynthesis.
.1
Which word equation shows photosynthesis?
[1 mark].2
Photosynthesis is an endothermic reaction. What does this mean?
[1 mark].3
Name the green substance in chloroplasts that absorbs light.
[1 mark]Edexcel GCSE Combined Science November 2020 Biology Paper 2F
5 questions on this paper's topics
18:001 of 5
Human activities affect biodiversity.
.1
What is biodiversity?
[1 mark].2
Which two human activities can pollute water? Tick two boxes.
[2 marks]Hormones are chemicals secreted by endocrine glands.
.1
Name the gland in the brain that is often called the 'master gland'.
[1 mark].2
Which gland produces insulin?
[1 mark].3
How do hormones travel to their target organs?
[1 mark]The distribution of organisms in a habitat depends on abiotic and biotic factors.
.1
Which two are abiotic factors? Tick two boxes.
[2 marks].2
Which resource do plants in a community compete for?
[1 mark]A food chain on a farm is: grass → rabbit → fox.
.1
What is the grass in this food chain?
[1 mark].2
What do the arrows in a food chain show?
[1 mark].3
In a stable community, what usually happens to the fox population after the rabbit population increases?
[1 mark]