Ch. 3: Cell function (pg. 9-16) Flashcards

1
Q

protein synth. consists of _______ and _______

A

transcription, translation

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2
Q

copying the DNA nucleotide sequence into mRNA is what and takes place where

A

transcription, nucleus

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3
Q

strand of DNA that serves as the template for mRNA synth. is known the _____ strand

A

sense

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4
Q

________ involves translating the _______ sequence of mRNA into a sequence of amino acids forming a protein

A

translation, nucleotide

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5
Q

where does translation occur

A

ribosomes that’re free in the cytosol and upon the outer surface of the rough ER

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6
Q

the macromolecule that facilitates translation of mRNA into a polypeptide

A

transfer RNA (tRNA)

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7
Q

a specific sequence of 3 mRNA nucleotides read together

A

codon

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8
Q

each codon is matched up with an ____ ____ from the tRNA

A

amino acid

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9
Q

a sequence of nucleotides on a chrom. coding for a particular protein

A

gene

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10
Q

two copies of a gene that come from mom and dad

A

alleles

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11
Q

if 2 alleles are the same they’re ______

A

homozygous

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12
Q

if 2 alleles are different they’re ______

A

heterozygous

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13
Q

if you need two mutant or faulty forms of an allele to exhibit the disorder, the disorder is _______

A

recessive

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14
Q

if you only need one mutant or faulty form of an allele to exhibit a disorder, the disorder is ________

A

dominant

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15
Q

a person who has one mutant allele and one normal allele and doesn’t exhibit a disorder or disease they are known as _______

A

carriers

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16
Q

the 22 pairs of chroms.

A

autosomes

17
Q

23rd pair of chroms.

A

sex chroms.

18
Q

if the mutant allele is associated with the X-chrom. a ____-______ disorder occurs

A

sex-linked

19
Q

cell division is useful for (2)

A

cell growth: fertilized egg to zygote
cell repair: repair or replacement of damaged or dead cells

20
Q

mitosis is _______ cell division

A

asexual

21
Q

meiosis is _______ cell division

A

sexual

22
Q

number of cell divisions in meiosis and mitosis

A

2 meiosis
1 mitosis

23
Q

mitosis occurs in ____ cells

A

somatic

24
Q

meiosis occurs in ______ cells

A

sex cells (of ovaries or testes)

25
Q

mitosis results in _____ chromosomes (2n)
meiosis results in _____ chromosomes (1n)

A

46, 23

26
Q

difference b/w daughter cells in mitosis and meiosis

A

mitosis: 2 identical daughter cells
meiosis: 4 non-identical gametes

27
Q

what is the first steps in the breakdown of glucose and where does it occur

A

glycolysis, cytoplasm

28
Q

which sys delivers oxygen to body

A

circulatory sys

29
Q

glycolysis produces what

A

2ATP and 2pyruvic acids

30
Q

1 glucose mlc produces a total of ___ ATP

A

36

31
Q

4 stages of aerobic cellular resp.

A

glycolysis, 2 pyruvic acids enter mitochondria, krebs cycle, electron transport chain

32
Q

anaerobic respiration has 2 stages

A

glycolysis in cytoplasm (forms 2 pyruvic acids), pyruvic acid ferments to lactic acid