EASY
Earn 100

Explain the term capacitation.

Important Questions on How do Organisms Reproduce

MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
What is fertilization ? In which part of Human female reproductive system does it occurs? Explain diagrammatically various physical and chemical events of fertilization in humans.
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
How is polyspermy prevented during fertilisation?
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
“All copulations lead to fertilization and pregnancy”. Do you agree with this statement? Justify your answer. 
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Capacitation occurs in
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Capacitation refers to changes in the:
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
What is "Capacitation" of sperms ?
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
What is fertilisation? State its significance.
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Define fertilization. Where does this process take place in female body? Describe the process of fertilization in human body.
HARD
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Describe the physico-chemical events that take place during fertilization in humans.
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Describe the process of fertilization in human with the help of four sequential diagrams.
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings

Statement I : Penetration of sperm into ovum is a chemical process
Statement II : Acrosome of sperm secretes hyaluronidase which dissolves vitelline membrane of ovum

The correct option among the following is

EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
During fertilization, zona pellucida of the ovum is dissolved by this enzyme released by the sperm
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Fertilization in humans is practically feasible only if:
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
The process of sperm penetrating the ovum is mainly
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
In human beings, normally in which one of the following parts, does the sperm fertilize the ovum?
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Which of the following are secretions produced by the spermatozoa at the time of fertilization?
HARD
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Briefly explain the events of fertilisation and implantation in an adult human female.
MEDIUM
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Polyspermy is prevented by all the events, except
EASY
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
Which of the following processes is associated with a change in the cellular DNA amount?
HARD
Science>Biology>How do Organisms Reproduce>Sexual Reproduction in Human Beings
What changes occur in the body if the ova get fertilised?