arrow_backBack to Study Resources

Quiz Chapter 4: Reproduction

10 questions · Form 1 Science Bab 1: Reproduction

10 questions · plays in fullscreen

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Which hormone-producing organ in the male reproductive system generates sperm cells?

  1. Prostate gland
  2. Testis
  3. Seminal vesicle
  4. Scrotum
Show answer

Answer: B

The testes are responsible for producing male gametes (sperm) and testosterone.

2. What is the correct biological sequence following successful fertilization in humans?

  1. Zygote → Embryo → Fetus → Baby
  2. Embryo → Zygote → Fetus → Baby
  3. Fetus → Embryo → Zygote → Baby
  4. Zygote → Fetus → Embryo → Baby
Show answer

Answer: A

Fertilization yields a single-celled zygote, which divides into an embryo, implants and grows into a fetus, and is delivered as a baby.

3. Why are the testes located within the scrotum outside the main abdominal cavity?

  1. To allow faster movement of sperm
  2. To maintain a temperature slightly lower than core body temperature for optimal sperm production
  3. To prevent hormone production from mixing with digestive organs
  4. To protect them from urine accumulation
Show answer

Answer: B

Sperm development requires a temperature about 1 to 2°C lower than normal body temperature, provided by the external placement of the scrotum.

4. Which floral organ attracts insect pollinators using vibrant colors and scents?

  1. Sepal
  2. Petal
  3. Style
  4. Filament
Show answer

Answer: B

Brightly colored petals attract insects and birds, encouraging them to visit the flower and transport pollen.

5. Where does human fertilization typically take place within the female reproductive system?

  1. Uterus
  2. Ovary
  3. Fallopian tube (Oviduct)
  4. Vagina
Show answer

Answer: C

Fertilization—the fusion of a sperm cell with an ovum—normally takes place inside the Fallopian tube.

6. What primary protective role is served by the fluid contained inside the amniotic sac?

  1. Provides nutrients to the developing fetus
  2. Cushions the fetus against physical impacts and mechanical shocks
  3. Carries waste products out of the uterus
  4. Maintains hormonal balance during labor
Show answer

Answer: B

Amniotic fluid acts as a protective shock absorber guarding the developing fetus against external pressure or bumps.

7. Which process describes the transfer of pollen grains from an anther to a sticky stigma?

  1. Fertilization
  2. Pollination
  3. Germination
  4. Implantation
Show answer

Answer: B

Pollination is the mechanical or biological transfer of pollen from the male anther to the female stigma.

8. Which artificial method of vegetative propagation involves growing plant tissue in a sterile nutrient culture under controlled conditions?

  1. Stem cutting
  2. Grafting
  3. Tissue culture
  4. Marcotting
Show answer

Answer: C

Tissue culture allows large numbers of identical plants to be propagated from tiny tissue samples cultured in sterile media.

9. What is the primary function of the placenta during pregnancy?

  1. Protects the fetus against mechanical shocks
  2. Facilitates exchange of nutrients, oxygen, and waste between mother and fetus
  3. Produces amniotic fluid to keep the fetus moist
  4. Directly mixes maternal and fetal blood for rapid transport
Show answer

Answer: B

The placenta allows essential nutrients and oxygen to pass from maternal blood to fetal blood while removing metabolic wastes, without mixing their blood streams directly.

10. What key advantage does cross-pollination offer over self-pollination in plants?

  1. Requires fewer pollinating insects
  2. Produces genetically identical offspring rapidly
  3. Yields seeds with higher genetic variation and better resistance
  4. Eliminates the need for water during growth
Show answer

Answer: C

Cross-pollination combines genetic material from two distinct parent plants, generating healthier seeds with greater genetic diversity.

Sponsored