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Introduction to Reproduction

When sperm bi...

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When sperm bind the egg influx of sodium ions occur from where

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Q. During depolarisation, the magnitude of negative membrane potential is reduced due to influx of sodium ions.

Q. During fertilization in amphibians, the fusion of egg and sperm plasma is preceded by
(P) Release of enzymatic contents from the acrosomal vesicle through exocytosis.
(Q) Binding and interaction of the sperm to vitelline membrane
(R) Chemo-attraction of the sperm to the egg by soluble factors secreted by egg.
(S) Release of the sperm nucleus into the ooplasm.
Which of the following is the correct sequence?

Q. In animals, ______ occurs during the production of the egg and the sperm.

In lungs, there is an exchange of ions between RBC and Plasma. Removal of $C O_{2}$ from blood involves ______________.

Q. Value based questions.
Try to explain the following observations
When

K^{+}

ions are removed from the medium surrounding red blood cells, sodium influx into the cells and potassium efflux increase dramatically.

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Introduction to Reproduction

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