What is the role of luteinizing hormone (LH) in spermatogenesis?
Gametogenesis

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Biology
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9th - 10th Grade
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It stimulates the Sertoli cells to secrete factors.
It acts on Leydig cells to secrete androgens.
It directly stimulates sperm production.
It inhibits the secretion of androgens.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During which phase do spermatogonia stop dividing and start growing?
Multiplication phase
Growth phase
Maturation phase
Spermiogenesis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of the acrosome in the sperm head?
It connects the head and the middle piece.
It contains enzymes to penetrate the ovum.
It provides energy for motility.
It encloses the sperm in a plasma membrane.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the sperm contains mitochondria?
Neck
Head
Middle piece
Tail
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At what stage does oogenesis begin in females?
At birth
During puberty
During embryonic development
After fertilization
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary follicle surrounded by?
A zona pellucida
A fluid-filled cavity
Multiple layers of theca cells
A single layer of granulosa cells
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the completion of the second meiotic division in oogenesis?
Release of the first polar body
Formation of the Graafian follicle
Fertilization by a sperm
Ovulation
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