Biology
State the main function of the following:
(i) Lymphocytes of blood
(ii) Leydig cells
(iii) Guard cells
(iv) Eustachian tube
(v) Corpus luteum
Reproductive System
ICSE 2016
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Answer
(i) Produce antibodies
(ii) Secrete male sex hormone testosterone
(iii) Regulate the opening and closing of stomata in leaf to facilitate transpiration and exchange of gases
(iv) Equalises air pressure on either side of ear drum for it to vibrate freely
(v) Secretes hormones Oestrogen, Progesterone
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