Fertilisation in human beings Practice exercise 4

Study the diagram below showing the female reproductive system: Which labelled part is the normal site of fertilisation in human beings?

Study the image below showing an egg released from the ovary and a 24-hour clock: When is fertilisation most likely to occur after ovulation?  (1 mark)

Study the image below showing an egg released from the ovary and a 24-hour clock: When is fertilisation most likely to occur after ovulation?  (1 mark)

During fertilisation in human beings, what is the function of the acrosome of a sperm cell?  (1 mark)

During fertilisation in human beings, what is the function of the acrosome of a sperm cell?  (1 mark)

During fertilisation in human beings, what is the function of the acrosome of a sperm cell?  (1 mark)

Under normal conditions, within how many hours after ovulation is fertilisation most likely to occur?

Under normal conditions, within how many hours after ovulation is fertilisation most likely to occur?   (1 mark)

Under normal conditions, within how many hours after ovulation is fertilisation most likely to occur?   (1 mark)

Under normal conditions, within how many hours after ovulation is fertilisation most likely to occur?   (1 mark)

Which is the correct sequence of events during fertilisation in human beings?

Which is the correct sequence of events during fertilisation in human beings?  (1 mark)

Which is the correct sequence of events during fertilisation in human beings?  (1 mark)

Which is the correct sequence of events during fertilisation in human beings?  (1 mark)

Study the image below showing sperm approaching an egg: Which process is represented when one sperm fuses with the egg?

Which statement about the survival time of human egg and sperm cells is correct?  (1 mark)

Which statement about the survival time of human egg and sperm cells is correct?  (1 mark)

Which statement about the survival time of human egg and sperm cells is correct?  (1 mark)

What happens immediately after a sperm successfully penetrates an ovum?

What happens immediately after a sperm successfully penetrates an ovum?  (1mark)

What happens immediately after a sperm successfully penetrates an ovum?  (1mark)

What happens immediately after a sperm successfully penetrates an ovum?  (1 mark)

During a reproductive health class, a student asked what would happen if two sperms fertilised the same egg. Which outcome is most likely? A. The zygote may have abnormal chromosomes and fail to developB. The zygote will develop into twins immediatelyC. Fertilisation will fail to occurD. The egg will survive for another month

During a reproductive health class, a student asked what would happen if two sperms fertilised the same egg. Which outcome is most likely?  (1 mark)

During a reproductive health class, a student asked what would happen if two sperms fertilised the same egg. Which outcome is most likely?  (1 mark)

During a reproductive health class, a student asked what would happen if two sperms fertilised the same egg as shown below. Which outcome is most likely?  (1 mark)

During a reproductive health class, a student asked what would happen if two sperms fertilised the same egg as shown below. Which outcome is most likely?  (1 mark)

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome? A. Fertilisation will not occurB. Twins will form automaticallyC. The egg will wait for the spermD. Fertilisation will restart in the uterus

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome?  ( 1 mark)

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome?  ( 1 mark)

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome?  ( 1 mark)

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome?  ( 1 mark)

In a reproductive health seminar in Kisumu, pupils learned that sperm can take time to travel. If sperm takes 4 days to reach the oviduct and the egg survives only 24 hours, what is the likely outcome?  ( 1 mark)

At a hospital in Eldoret, a doctor explained to Grade 8 pupils that fertilisation occurred in a woman’s oviduct, but the zygote failed to move to the uterus. What is the most likely outcome? A. The woman will have a normal pregnancyB. The zygote may implant in the oviduct causing complicationsC. The sperm will leave the bodyD. The egg will survive for another month

At a hospital in Eldoret, a doctor explained to Grade 8 pupils that fertilisation occurred in a woman’s oviduct, but the zygote failed to move to the uterus. What is the most likely outcome?  (1 mark)

At a hospital in Eldoret, a doctor explained to Grade 8 pupils that fertilisation occurred in a woman’s oviduct, but the zygote failed to move to the uterus. What is the most likely outcome?  (1 mark)

At a hospital in Eldoret, a doctor explained to Grade 8 pupils that fertilisation occurred in a woman’s oviduct, but the zygote failed to move to the uterus. What is the most likely outcome?  (1 mark)

During a health workshop in Mombasa, students asked what happens if sperm never meets the egg. Which outcome is correct? A. Menstruation occurs as the egg disintegratesB. The egg will turn into spermC. Fertilisation restarts in the uterusD. Twins form automatically

During a health workshop in Mombasa, students asked what happens if sperm never meets the egg. Which outcome is correct?  (1 mark)

During a health workshop in Mombasa, students asked what happens if sperm never meets the egg. Which outcome is correct?  (1 mark)

During a health workshop in Mombasa, students asked what happens if sperm never meets the egg. Which outcome is correct?  (1 mark)

During a clinic visit in Nairobi, Mary’s uterus lining was found to be very thin due to hormonal imbalance. Fertilisation occurred in the oviduct. What is the most likely outcome? A. The zygote fails to implantB. The zygote implants normallyC. The egg develops into a foetus in the oviductD. Fertilisation restarts in the uterus

During a clinic visit in Nairobi, Mary’s uterus lining was found to be very thin due to hormonal imbalance. Doctors confirmed that fertilisation still occurred in the oviduct. Which statement about fertilisation is correct? (1 mark)

During a clinic visit in Nairobi, Mary’s uterus lining was found to be very thin due to hormonal imbalance. Doctors confirmed that fertilisation still occurred in the oviduct. Which statement about fertilisation is correct? (1 mark)

During a clinic visit in Nairobi, Mary’s uterus lining was found to be very thin due to hormonal imbalance. Doctors confirmed that fertilisation still occurred in the oviduct. Which statement about fertilisation is correct? (1 mark)

During a clinic visit in Nairobi, Mary’s uterus lining was found to be very thin due to hormonal imbalance. Doctors confirmed that fertilisation still occurred in the oviduct. Which statement about fertilisation is correct? (1 mark)