Cells

Question 1

Recall the organelle in plant cells where photosynthesis occurs

Answer 1

The chloroplast

Question 2

Describe three differences between plant and animal cells

Answer 2

Plant cells have a cell wall, Chloroplast and a large singlular vacuole. Animal cells don’t have chloroplast or a cell wall and they have smaller vacuoles.

Question 3

Recall the name of the chemical that traps sunlight in green plants

Answer 3

Chlorophyll

Question 4

Recall the organelle in plant and animal cells where cellular respiration occurs

Answer 4

The mitochondrion

Question 5

Recall the organelle in plant and animal cells where proteins are made

Answer 5

Ribosomes

Question 6

Identify the three organelles above in a diagram or photo of a cell

Answer 6

Nucleus, Mitochondria, Cell membrane

Question 7

Describe the symptoms of mitochondrial disease

Answer 7

Symptoms can include poor growth, developmental delays and muscle weakness

Question 8

Discuss two of the ethical issues around ‘three-parent babies’ in the treatment of mitochondrial disease

Answer 8

This means the baby has three genetic parents: the father who supplied the sperm, the mother who supplied both womb and the egg nucleus, and an anonymous donor who supplied healthy mitochondria. Ethical issues include (1) Safety - risks to the long term health of the baby are still not well understood, (2) it is a form of genetic engineering and (3) Privacy of the donor and (4) is creating babies with three parents, natural.