Life Science Flashcards
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0.39236111111111116
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Seminal vesicle: A gland
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that produces a nutrient-
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rich fluid that that provides
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energy for the spem cells
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4.1 Male reproductive system
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Cowper’s gland: Produces
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mucus that helps with the
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movement of sperm oells
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Figure 4.1 below shows the different parts of the male reproductive system
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and their functions.
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Scrotum: Skin sac that
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protects the testes
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and holds the testes
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‘outside’ the body
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at a
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temperature that is 2”C
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below 37 C. This is the
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best temperature for the
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production of sperm
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Functions of testosterone
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Figure 4.1 Structure of the male reproductive system
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Structure of a sperm cell
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- Development of male secondary sexual characteristics
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such as
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beard
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pubic hair
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Stimulates the maturation of sperm cels.
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2
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Figure 4.2 below shows the different parts of
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functions.
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Head
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Middle section or
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4
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The testes produce the hormone testosterone
which has the following
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functions:
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body
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Figure 4.2 Structure of a sperm cel
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Questions
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Send feedback
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tail
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Activity 1
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give ONE function of each.
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X
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3 Give TW0 functions of testosterone.
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testes: Produces sperm cells arnd
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Why this ad?
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the hormone testosterone
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TEMU
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1 Name the accessory glands of the male reproductive system and
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Temu
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Name the organ where testosterone is produced.
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Mitochondria: Provide
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4.6 * FREE
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| energy for swimming
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Name all the parts of the sperm cell that are responsible for
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movement. State what the function of each part is.
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sperm cell and their
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5 Explain the role of the nucleus of the sperm cell in fertilisation.
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Acrosome: Contains
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enzymes to digest wall of
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egg oell for fertilisation
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Nucleus: Contains
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| 23 chromosomes
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Prostate gland: Produces an
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alkaline fluid that neutralises the
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acids produced in the vagina
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which wOuld kill sperm cells
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Sperm duct: Transports sperm
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from the epididymis to the urethra
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J tail: Used for swimming
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4G
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urethra: Transports semen and
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urine out of the body
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epididymis: Sperm cells mature
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and are stored here
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.l l
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