Blastocyst, morula, capacitation and acrosomal reactions — task. Science Test Space, Class 10.

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1. Which of the following statements is/are true?

Sperms swim using their head due to its motility
When a sperm enters the ovum, chemical reactions obstruct any further entry of sperm
Initial transportation of sperms is by the uterine and fallopian tube contractions
Male discharges semen into the female's vagina close to the cervix during intercourse

2. Which of the following statements is/are false about cortical reactions?

Before the fusion of sperm and ovum, oocytes display cortical reactions
Cortical granules present in the oocyte fuse with the plasma membrane to release cortical enzymes
It ensures that fertilization occurs with only one sperm
Cortical reactions hinders the entry of other sperms
Cortical enzymes soften the surface of the ovum

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