This document discusses human reproduction. It describes that males produce millions of sperm cells that contain the father's genetic information and have a tail to help swim. Females produce a few hundred egg cells over their lifetime that contain the mother's genetic information. Fertilization occurs when a sperm cell meets an egg cell, and the joined cell begins dividing and growing into new cells to form an embryo.

1. Reproduction
 Target
 To learn about reproduction in humans.
Sunday, February 12, 2017

2. Male sex cells
 Male sex cells are
called sperm.
 The head of the
sperm contains the
nucleus with all the
genetic information
from the father.
 The tail helps it
swim well.
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3. Male gametes  Male gametes, very large
numbers
 100 million sperm per
ejaculation
 Smaller
 Motile (if they can propel
themselves)

4. Female sex cells
 Female sex cells are
ova.
 They are large cells
and include the
nucleus which has
all the genetic
information from the
mother.
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5. Female
gametes Female gametes (ova or eggs)
 Fairly small numbers.
 Human females for example
release about 500 ova in a
lifetime.
 Larger
 Stationary- move very slowly
 They often contain food reserves
(lipids, proteins, carbohydrates)
to nourish the embryo after
fertilisation

6. Fertilization
 This happens when
a male sex cells
meets a female sex
cell.
 The joined cell starts
to divide and grows
into new cells.

7. Male organs
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 Testis
 Sperm duct
 Penis
 Bladder

8. Female sex organs
 Vagina
 Cervix
 Uterus
 Oviduct
 Ovary
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9. Questions
 Pages 62 - 63

10. Diagram showing fertilisation