• Unit 3 Sht_9

Sht 3_9

1 a) Describe the differences between sexual and asexual reproduction.

b) Give 2 examples of the structures used by plants to carry out asexual reproduction.

 

2 Describe the relationship between the level of parental care given to offspring and the number of offspring produced.

 

3. A plant seller has developed a new variety of rose and produced large numbers for sale using tissue culture.

The diagram shows the tissue culture process.

 

a) What method of reproduction would have been used to develop the new variety of rose? Explain your answer.

b) What name is given to a group, such as the small plants produced by tissue culture?

c) Describe a precaution that the scientists performing the tissue culture process would take in order to prevent fungi contaminating the cultures.