During a lesson about animal and plant cells, a student reads out a number of statements about cell structure. Only three of his statements are correct. 1 All cells have a cell wall. 2 Cell walls are made of cellulose. 3 Chromosomes carry DNA. 4 Cell walls contain starch. 5 All cells have a cell membrane. 6 A sap vacuole helps an animal cell maintain its turgor. 7 Chromosomes are found in the cytoplasm. Which three statements are correct?

What is an example of active transport?

Which of the following have both cytoplasm and cell walls?

Plant cells are placed in a solution with a lower water potential than that of the cells. Which row is correct?

A person has blood group A. Which statement about his genotype is correct?

In fruit flies, the allele for an ebony coloured body is recessive to the allele for a grey coloured body. In an inve…

Which statement about dominant and recessive alleles is not correct?