Question

(a) Fig. 1.1 is a diagram of the male reproductive system in humans.

(i) State the letter from Fig. 1.1 that identifies the part that:
      carries urine and semen ………………………………
      produces sperm ………………………………
      transfers sperm to the urethra. ………………………………
(ii) Draw an X on Fig. 1.1 to identify the position of the prostate gland.
(b) Sperm cells are the male gametes in humans.
      Sperm cells are 0.05 mm in length.
      Female gametes are 0.1 mm in length.
     (i) State the name of the female gametes in humans.
     (ii) Calculate how many times longer female gametes are than male gametes.

(c) Sperm cells have a high rate of respiration.
      (i) State the word equation for aerobic respiration.
      (ii) Complete the sentence about respiration.
            Respiration releases the ……………………………… needed for cell division and movement.
(d) Sperm cells are involved in fertilisation.
      Describe the process of fertilisation in humans.
      Include the site of fertilisation in your answer.