3.1 Food Supply Plant Growth and Productivity

Question 1

What is food security?

Answer 1

Food security is the ability of human populations to access food of a sufficient quality and quantity

Question 2

What do breeders seek to develop crops with?

Answer 2

Higher nutritional values, resistance to pests and disease, physical characteristics suited to harvesting and those that can thrive in particular environmental conditions

Question 3

What happens to light that is not absorbed?

Answer 3

Light energy not absorbed is transmitted or reflected

Question 4

What is the benefit of having accessory pigments?

Answer 4

Each pigment absorbs a different range of wavelengths

Question 5

What can the biosynthetic pathways from glucose result in?

Answer 5

Biosynthetic pathways can lead to the formation of a variety of metabolites such as DNA, protein and fat