Human Reproduction

The diagram below represents a system in the human body. The function of structure X is to _____________

• produce energy needed for sperm to move

• provide food for the sperm to carry to the egg

• produce and store urine

• produce sperms and male sex hormones

The human female reproductive system is represented below. Where will the embryo attach itself after fertilization?

• A

• B

• C

• D

What is the scrotum?

• A pouch of skin surrounding the testes

• A fold of skin that protects the penis

• An additional gland located at the end of the urethra

The majority of the embryo´s organs are formed

• during the first trimester

• during the second trimester

• during the third trimester

Sexual reproduction is vital to the propagation of the Human race. Which of the following sequences represents the correct order of events in the formation of a human fetus?

• Zygote → Blastocyst → Embryo → Fertilization

• Fertilization → Zygote → Blastocyst → Embryo

• Blastocyst → Embryo → Differentiation → Zygote

• Fertilization → Growth → Differentiation → Zygote

The main function of the placenta is to :

• allow direct exchange of blood between the mother and fetus for nutrition.

• facilitate gas and nutrient exchange between the fetus and mother.

• support the weight of the developing fetus in the uterus.

• store gases and nutrients for later delivery to the fetus.

A reproductive system is represented in the diagram below. Which structure is correctly paired with its reproductive function?

• A – pathway of gametes

• C– production of sperm

• D– regulation of homeostasis

• B– synthesis of progesterone

Which statement best describes an important

process carried out by structure X (placenta)

• Milk passes from the mother to the fetus

• Material are exchanged between fetal and maternal blood.

• Maternal blood is converted into fetal blood

• Oxygen diffuses from fetal blood to maternal blood.

The diagram below represents some stages of early embryonic development. Which process is represented by the arrows in the diagram?

• meiosis

• Mitosis

• Fertilization

• Evolution

Which structure is the vas deferens?

• A

• B

• C

• D