The production of sperm

The production of sperm

■ Sperm is made in the two testes held in the scrotal sac.

■ Each testis is made of a set tiny of tubes called SEMINIFEROUS TUBULES.

■ The tubules contain cell which divide by a special process called MEIOSIS.

■ These cells divide and form the sperm cells

Production of sperm

■ 'Nurse cells' are special cells in the testes which provide nutrients for the developing sperm.

■ When the sperm a fully developed, they are transported to the epididymis, a coiled tube at the outer edge of the testis.

■ Here the sperm are matured and stored for a short time.

Fill in the Blanks

Name the liquid produced when sperm is mixed with fluid from the seminal vesicles.

Multiple Choice

What can be found in the mid section of a sperm cell?

• nucleus

• Mitochondria

• Flagellum

• Chromosomes

Multiple Choice

What are the specialised sex cells called in sexual reproduction?

• Zygotes

• Gametes

• Ovaries

• Embryos

Multiple Choice

Which type of cells are formed by mieotic division?

• muscle fiber cells
• skin cells
• sperm cells
• erythrocytes

Multiple Choice

Base your answer to the following question on the diagram given and on your knowledge of biology.

Which structure is part of both the reproductive and

excretory systems?

• E

• B

• C

• D

Multiple Choice

The diagram given represents the human male reproductive system. Which activity would be prevented by blockages at X

and Y?

• transport of urine out of the body

• passage of testosterone to the female to stimulate

  egg production

• movement of sperm out of the body

• movement of testosterone to the testes to

  stimulate sperm production

Multiple Choice

Base your answer to the following question on the diagram given and on your knowledge of biology. The letters in the diagram indicate structures present in a human male.

What change would occur immediately if both

structures labeled B were damaged or blocked?

• Structure A would decrease in size.

• The blood supply to structure E would decrease.

• Gametes would no longer be transported to

  structure C.

• Structure D would be able to deliver more

  gametes.

Multiple Choice

A diagram of the human male reproductive system is given. Which structure produces cells that have the potential to become gametes?

• A

• B

• C

• D