Biology Chapter on Reproduction

Multiple Choice Questions

• The number of nuclei in a zygote is two
• The male reproductive organ in humans is the testes
• Attachment of the embryo to the uterine wall is called implantation
• Rupturing of follicles and releasing the ovum is called ovulation
• Fertilized egg implants in the uterus after about 7 days
• Test-tube baby technique is in vitro fertilization
• The acrosome is part D of the sperm

Answer in One Sentence

• A fetus is a developing embryo with more developed features.
• Sperm travels through the testis, epididymis, vas deferens, and urethra to reach the exterior.
• Glands like the seminal vesicles, prostate, and bulbourethral glands provide fluids for semen.
• Endocrine glands like the testes and adrenal glands help maintain sexual characteristics in males.
• Fertilization occurs in the fallopian tube and implantation occurs in the uterus.
• The external female genital organs include the ovaries, fallopian tubes, uterus, vagina, and vulva.
• Blastula is a hollow ball of cells; gastrula is a multilayered structure.
• A zygote is a fertilized egg, the embryo is the subsequent developing stage.

Fill in the Blanks

• The primary sex organ in the male is the testis.
• The uterus is also called the womb.
• Sperm fertilizes the ovum in the fallopian tube.
• The structure facilitating substance transfer to/from the fetus is the disc-like placenta.
• Gonorrhea is caused by bacteria.
• Testosterone is the hormone produced by the testes.

Short Answer Questions

• Budding in Hydra involves outgrowth and separation of new individuals.
• Sponges reproduce through fragmentation and budding.
• In vitro fertilization (IVF) involves fertilization outside the body.
• Mechanical contraceptives include condoms and diaphragms
• Tubectomy is a female sterilization procedure.
• The causal organism of syphilis is Treponema pallidum. Symptoms include sores, rash, and neurological problems.
• Colostrum is the initial milk produced after childbirth, rich in antibodies.

Long Answer Questions

• Diagrams and details are needed for male and female reproductive systems.
• Detailed description of the female reproductive system, including organs (ovaries, fallopian tubes, uterus, vagina) is required.
  • The function of each part should be detailed.
• The process of fertilization, including the meeting of egg and sperm.
• Details describing how the zygote develops into a morula.