1. National 5 Biology Key Area 4: Reproduction
Sexual and asexual reproduction and their importance for survival of species

2. Let’s see what you can remember from S3 (or S2!) biology!

3. Male Reproductive System Identify structures A - DB C D

4. Female Reproductive System Identify structures A - DB C D

5. Match the word to the definition!
A. Reproduction involving only one parent. Offspring genetically identical to parents.
1. Zygote
2. Asexual Reproduction
B. The fusion of the nuclei of the two gametes to produce a zygote.
3. Sexual Reproduction
C. A fertilised egg cell
N4 need to know the difference asexual and sexual. N5’s only need sexual reproduction (but all were taught it in S3).
D. Reproduction involving two parents. All offspring are different to the parents.
4. Fertilisation

6. Natural Asexual Reproduction in Plants Name the method of asexual reproduction AND give an example of a plant that carries out this method A. C. B.
Nat 4
Runners
Strawberry plants
Spider plants
Tubers
Potato plants
Sweet potato plants
Bulbs
Garlic plants
Tulips

7. Identify the features of sexual reproduction…..
Involves the processes of pollination (plants) and fertilisation (plants and animals)
Involves the production of runner and bulbs.
Introduces (genetic) variation into populations
Produces clones
Allows beneficial characteristics of the parent to be passed on
From N4 support notes:
Sexual reproduction is important for introducing variation in a population and enables species to adapt to changing environmental conditions.
Asexual reproduction does not produce variation but it allows populations to grow quickly.
Allows populations to grow quickly
Involves gametes
Produces seeds in plants

8. Name the Parts !!!
You will see a picture of a flower with part of it coloured in.
As a group you have to decide which part of the flower it is and hold up the answer on your white board.
N5 only – although all were taught it in S3 so all could do it.

9. stigma

10. petals

11. carpel

12. ovary

13. anther

14. style

15. stamen