Topic: Reproduction Aim: Describe the structure of the male reproductive system. Do Now: HW: Read pgs. 630 and 631. Write a paragraph (at least 4 sentences)

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Topic: Reproduction Aim: Describe the structure of the male reproductive system. Do Now: HW: Read pgs. 630 and 631. Write a paragraph (at least 4 sentences) describing each stage of the menstrual cycle. 1.Which type of cell division does this diagram represent? Explain your answer. 2.If organism A contains 88 chromosomes, how many chromosomes would the offspring contain?

46 23

1.Identify the process represented in the diagram. 2. How is this different from animal cell mitosis? 3. If the first cell is made up of 32 chromosomes, how many chromosomes are found in the daughter cells? CBA DE F

Spermatogenesis

Testes: p roduce sperm and testosterone Scrotum: protects the testes and keeps testes cooler for sperm production Vas deferens: tubes that carry sperm from testes to urethra

Glands – produce fluids that make up SEMEN (used to transport sperm)

Urethra: tube that carries SPERM and URINE out of the body Penis: male organ that transfers sperm into female

Let’s summarize… 1.Describe the process that occurs in the testes. 2.Describe the pathway of sperm out of the body. 3.Explain the importance of semen.

In human males, sperm cells are suspended in a fluid medium. The main advantage gained from this adaptation is that the fluid (1.) activates the egg nucleus so that it begins to divide (2.) provides currents that propel the egg down the oviduct (3.) removes polar bodies from the surface of the sperm (4.) acts as a transport medium for sperm

The scrotum is an important adaptation in human males because the optimum temperature for sperm development is (1.) 10 to 12 degrees below normal body temperature (2.) 10 to 12 degrees above normal body temperature (3.) 2 to 4 degrees above normal body temperature (4.) 2 to 4 degrees below normal body temperature

In the human male, sperm leave the body through the (1.) urethra (2.) testes (3.) epididymis (4.) vas deferens

In the human male, gametes are produced in the (1.) prostate gland (2.) testes (3.) bladder (4.) urethra

Sperm is transported to the urethra by tubes called (1.) prostate gland (2.) testes (3.) bladder (4.) vas deferens

A B C D F Urinary bladder testes vas deferens Glands E G H urethra penis

A B What is the difference between process A and process B?

andgenetics/mitosis/ andgenetics/asexualreproduction/