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Biology N3/N4 > Continuation of Life > Flashcards

Continuation of Life Flashcards

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1
Q

What is a Nucleus?

A

It controlled all cell activity

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2
Q

What is a Cell membrane?

A

It controls entry and exit of substances

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2
Q

What is a Cytoplasm?

A

It is the site of chemical reaction

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3
Q

Where is DNA found?

A

In the nucleus of the blood cell

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3
Q

What is DNA’s function?

A

The DNA’s function is to hold the instructions for making proteins of pass on these characteristics

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4
Q

What shape is DNA?

A

A double stranded helix

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5
Q

What are DNA’s 4 bases?

A

A+T G+C (Adenine+Thymine Guanine+Cytosine) Always pair together

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6
Q

What are Chromosomes?

A

Long strands of tightly coiled DNA

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7
Q

How many Chromosomes do you have?

A

46 Individual chromosomes (26 pairs)

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8
Q

What is a Gene?

A

A small section of DNA found on a chromosome

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9
Q

What is a Vagina?

A

Accepts sperm

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10
Q

What is a Cervix?

A

Opens to allow sperm to travel up to the oviduct

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11
Q

What is a Uterus?

A

Where a fetus develops

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12
Q

What is a Oviduct?

A

Where fertilisation occurs

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13
Q

What is the Ovaries?

A

Female sex organ, they produce female sex cell (egg)

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14
Q

What is a Penis?

A

Releases sperm (ejaculation)

15
Q

What is a Urethra?

A

Carries urine and sperm out of the penis

16
Q

What is a Scrotum?

A

Protects the testicles

17
Q

What is are Testicles?

A

Male sex organ, they produce sperm the male sex cell

18
Q

What is Fertilisation?

A

Fertilisation is the process in which the nucleus of two sex cells fuse together.

19
Q

What is the K strategy?

A

In a stable environment, make fewer and more expensive babies

20
Q

What is the R strategy?

A

in an unstable environment, make more inexpensive babies

21
Q

What is the sperm duct?

A

Carries sperm from the testicle to the urethra

Biology N3/N4 (5 decks)

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