S3 Biology Growth & Regulation

A cell with 10 chromosomes divided by mitosis. Which answer identifies the number of daughter cells produced and the number of chromosomes in each daughter cell?

• 1 daughter cell with 20 chromosomes

• 1 daughter cell with 5 chromosomes

• 2 daughter cells, each with 10 chromosomes

• 2 daughter cells, each with 5 chromosomes

In an experiment a sample of bacteria was left to grow for 2 hours and was found to contain 6400 cells after this time. The bacteria were able to divide once every 20 min. How many cells were in the sample at the beginning of the experiment?

State the term that means that an organism is a genetically identical copy of its parent.

What name is given to this type of plant food storage organ?

• Runner

• Tuber

• Bulb

• Seed

Which two diagrams below show natural methods of propagation?

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Which two methods of propagating plants are artificial?

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The table shows the average mass of sugar present in one food storage organ of two plants, X and Y.

The ratio of the average mass of sugar for plant X to plant Y is....

• 54:6

• 18:2

• 9:1

• 1:9

The graph represents information about the number and position of young strawberry plants growing around a parent plant.

Which of the following diagrams shows this information correctly?

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Which of the following cells would both be produced by meiosis?

• Liver and skin

• Pollen and sperm

• Egg and brain

• Ovules and liver

The diagram shows the main parts of a flower. Which answer describes the type of gametes produced by the anther and the chromosome complement these gametes contain?

• Female gamete with full chromosome complement

• Female gamete with half chromosome complement

• Male gamete with full chromosome complement

• Male gamete with half chromosome complement