spermatogenesis Flashcards

(12 cards)

1
Q

what is spermatogenesis

A

production of a sperm

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2
Q

where does spermatogenesis occur

A

seminiferous tubule

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3
Q

steps of transformation

A

spermatogonia
primary spermatocytes
secondary spermatocytes
spermatids
spermatozoa

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4
Q
  1. spermatogonia
A

mother cells, 2n

divide by mitosis to produce a continuous supply of cells

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5
Q
  1. primary spermatocytes
A

2n

are pushed to the center and undergo meiosis (next 2 steps)

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6
Q
  1. secondary spermatocytes
A

n

are formed during the first stage of meiosis

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7
Q
  1. spermatids
A

daughter cells formed by the second meiotic division

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8
Q
  1. spermatozoa
A

spermatids mature and lose cytoplasm and form tialss

they are nourished by cells in the seminiferous tubules

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9
Q

what is the 4 components to a sperm structurally

A

head, neck, body and tail

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10
Q

what does the head of a sperm contain

A

a nucleus: contains genetic material

centrioles: involved in the reproduction of cells

acrosome: contains enzymes to break through the eggs membrane

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11
Q

what does the body of a sperm contain

A

mitochondria to provide energy because they have a long way to swim

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12
Q

what is the tail of a sperm

A

it is a plasma membrane

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