1Name the parts of the cell A C B Nucleus Cytoplasm Cell membrane answer

2.Give the function of the parts of the cell ? Control cell’s activities Control entry and exit to cell Site of chemical reactions answer Structure (part of cell) Function (what it does) Nucleus Cell membrane Cytoplasm

3.What type of cell is this? How is it specialised ? answer Blood cell No nucleus large surface area for gas exchange

4.What type of cell is this? How is it specialised ? answer Neuron (Nerve cell) Long tail to carry messages

5.What is the male sex cell called ? sperm answer

6.What is the female sex cell called ? OVA (egg) answer

7.Which structure in the nucleus contains the genes? Chromosome answer

8.Label this diagram and explain their function? Head region: Mainly nucleus Small food store Tail: Enables sperm to swim answer

9. How does the size of the ova compare to the sperm? The egg is much larger answer

10.Which sex cell can move on its own? Sperm (OVA cannot move on their own) answer

SC/ FM Label the diagram. Sperm duct. answer TESTES – site of sperm production URETHRA – urine and seminal fluid exit via here PENIS answer

12.Label the diagram? OVIDUCT : CILIA TRANSPORT EGG TO UTERUS answer OVARY : RELEASES EGG UTERUS: FERTILISED EGG IMPLANTS IN UTERUS WALL

13.Where does fertilisation take place? answer in the oviduct

14.Where does the fertilised egg implant ? answer In the lining of the uterus

15.Label the diagram and give their functions? answer Placenta: exchange of - waste and CO 2 from embryo’s blood supply to mother. Glucose and oxygen from mothers blood supply to embryo Amniotic sac: Filled with amnion fluid. Protects embryo. Umbilical cord: To carry substances between the placenta and the embryo

16.Describe the role of the placenta in the womb? answer Allows exchange of substances between the mothers blood supply and the embryos blood supply. Large surface area allows easy diffusion. The blood supplies DO NOT MIX

17Label the parts of the microscope eyepiece Stage Mirror answer

18Label the parts of the microscope Focusing knob Objective lens answer