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Y9 Biology > Types Of Cells > Flashcards

Types Of Cells Flashcards

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1
Q

Sperm cell characteristics (4)

A
  1. haploid nucleus
  2. many mitochondria
  3. acrosome containing enzymes
  4. long tail
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2
Q

Egg cell characteristics (5)

A
  1. haploid nucleus
  2. Store of nutrients in cytoplasm
  3. Jelly layer surrounding cell membrane
  4. Jelly layer hardens after fertilisation
  5. Cell membrane hardens after fertilisation
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3
Q

Ciliates Epithelial Cell characteristics (3)

A
  1. Hair like extensions on the cell membrane ( catches mucus)
  2. Lines oviducts
  3. Diploid nucleus
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4
Q

Epithelial Cell with Microvilli Characteristics (3)

A
  1. Finger-like extensions on cell membrane
  2. Lines small intestine
  3. Diploid nucleus
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5
Q

haploid nucleus purpose

A

Contains 1 set of chromosomes because this is a gamete

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6
Q

Purpose of mitochondria in Sperm Cell

A

Release lots of energy quickly for movement of the cell

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7
Q

Purpose of acrosome containing enzymes in Sperm cell

A

helps cell go through jelly-like layer surrounding an egg cell

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8
Q

Function of long tail in Sperm cell

A

Helps cell move

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9
Q

Function of jelly layer in egg cell

A

Protects egg as it moves through oviduct

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10
Q

Purpose of jelly layer hardening ( after cells fuse )

A

Helps prevent a 2nd sperm from fertilising the egg

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11
Q

Why does the cell membrane harden after fertilisation in egg cell?

A

helps prevent a 2nd sperm from fertilising the egg

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12
Q

Purpose of hair-like extensions in Ciliated Epithelial Cell

A

To move things across the cell surface

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13
Q

Why do Ciliated Epithelial cells line the oviducts?

A

Moves the egg from ovary towards the uterus

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14
Q

Purpose of diploid nucleus

A

Contains 2 sets of chromosomes because this is a body cell

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15
Q

Purpose of finger-like extensions in Epithelial Cell

A

Increases surface area so substances are absorbed more quickly

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16
Q

Why do Epithelial cells, with microvilli, line the small intestine? (2)

A

Absorbs nutrients, protects from intestinal bacteria

17
Q

What are eukaryotic cells?

A

Complex cells, animal and plants

18
Q

Prokaryotic cell

A

(Single cell organism) bateria

19
Q

DNA in bacteria cell (2)

A

Single circular strand of DNA that floats freely in the cytoplasm, + small rings of DNA called plasmids

20
Q

Bateria cells don’t have

A

Nucleus Chloroplasts or mitochondria

Y9 Biology (6 decks)

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