Difference between revisions of "Testes"
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:[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Testes, page 225, GCSE Biology, CGP, Edexcel ''] | :[https://www.amazon.co.uk/gp/product/1782948120/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948120&linkCode=as2&tag=nrjc-21&linkId=dedef775c6a43dbb0a609441525adac0 ''Testes, page 225, GCSE Biology, CGP, Edexcel ''] | ||
:[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Testes, page 77, GCSE Biology; The Revision Guide, CGP, Edexcel ''] | :[https://www.amazon.co.uk/gp/product/1782946748/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946748&linkCode=as2&tag=nrjc-21&linkId=a4f0348fc37d0ba1bb52d27f8679581f ''Testes, page 77, GCSE Biology; The Revision Guide, CGP, Edexcel ''] | ||
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Latest revision as of 16:12, 20 December 2019
Contents
Key Stage 3
Meaning
The testes are a pair of organs in the male reproductive system located behind the penis in the scrotum responsible for making sperm.
About the Testes
- The testes are found inside a sack called the scrotum.
- The testes are outside the body instead of inside because sperm need to be kept cooler than body temperature to survive.
- The testes are always making new sperm.
Key Stage 4
Meaning
The testes are a pair of organs in the male reproductive system responsible for making sperm. They are also endocrine glands in the endocrine system.
About Testes in the Male Repdroductive System
- The testes produce the male gamete known as sperm.
- The testes are found inside a sack called the scrotum.
- During ejaculation the sperm cells leave the testes via the sperm duct.
About the Testes as Endocrine Glands
- The testes secrete a hormone called testosterone.
- Testosterone causes the expression of male characteristics during puberty including muscle growth, growth of facial hair and the deepening of the voice.
References
AQA
- Testes, page 182, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Testes, page 208, GCSE Biology, CGP, AQA
- Testes, pages 12, 13, 17, GCSE Combined Science Trilogy 2, Hodder, AQA
- Testes, pages 61, 63, GCSE Combined Science; The Revision Guide, CGP, AQA
- Testes, pages 73, 77, GCSE Biology; The Revision Guide, CGP, AQA
Edexcel
- Testes, page 142, GCSE Biology, Pearson, Edexcel
- Testes, page 225, GCSE Biology, CGP, Edexcel
- Testes, page 77, GCSE Biology; The Revision Guide, CGP, Edexcel