Questions and Answers

Describe a diploid nucleus as a nucleus containing two sets of chromosomes

Describe a haploid nucleus as a nucleus containing a single set of chromosomes

Understand that chromosomes contain DNA, which carries genetic information in the form of genes

Investigate gravitropism and phototropism in shoots and roots

Explain the role of auxin in controlling shoot growth, limited to: (a) auxin is made in the shoot tip (b) auxin spreads through the plant from the shoot tip (c) auxin is unequally distributed in response to light and gravity (d) auxin stimulates cell elongation

Describe phototropism as a response in which parts of a plant grow towards or away from light

Describe gravitropism as a response in which parts of a plant grow towards or away from gravity

Describe the signs of Type 1 diabetes (limited to increased blood glucose concentration and glucose in urine) and its treatment (administration of insulin)

Describe the control of blood glucose concentration by the liver and pancreas and the roles of insulin and glucagon

Explain the need to control blood glucose concentration