Practice Question
1.State what is meant by the term cell cycle
The cell cycle is the sequence of stages that occur when a cell divides.
2.Name the three stages of the cell cycle
Interphase, mitosis and cytokinesis
3.Mitosis is important to multicellular organsism. Explain why.
Growth of the organism: It increases the number of cells, allowing an organism to grow from a single fertilised egg into a mature individual.
Repair of tissues: It replaces damaged or worn-out cells (e.g., skin cells, blood cells).
Asexual reproduction (in some organisms): It produces genetically identical offspring.
Development: It allows tissues and organs to form and develop correctly during embryonic development when the cells divide by mitosis.
Factors affecting the rate of photosynthesis
Measuring & calculating rates of photosynthesis
Inverse square law and photosynthesis
Economics of enhancing the conditions in greenhouses
Investigating the effect of light intensity on the rate of photosynthesis
Data analysis and nervous system
The effect of a factor on human reaction time
Controlling blood glucose concentration
Regulating water and nitrogen levels in the body.
Hormones and human reproduction
Using hormones to treat infertility
Control and coordination in plants using hormones
Investigating the effect of light or gravity on the growth of newly germinated seedlings