Unit 1 Flashcards

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1
Q

Role of ciliated cells

A

Waft mucus

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2
Q

Role of goblet cells

A

Secrete mucus

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3
Q

Role of smooth muscle cells

A

Constrict bronchioles

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4
Q

Role of squamous epithelial cells

A

Provide a short diffusion distance

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5
Q

Means of division - yeast cells

A

Budding

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6
Q

Means of division - plant cells

A

Cytokinesis

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7
Q

Means of division - animal cells

A

Cytokinesis

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8
Q

Means of division - bacterial cells

A

Binary fission

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9
Q

Do animal cells have a nucleus?

A

Yes

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10
Q

Do plant cells have a nucleus?

A

Yes

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11
Q

Do yeast cells have a nucleus?

A

Yes

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12
Q

Do bacterium cells have a nucleus?

A

No

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13
Q

Material of cell wall in plant cells

A

Cellulose

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14
Q

Material of cell walls in yeast cells

A

Chitin

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15
Q

Material of cell wall in bacterial cells

A

Peptidoglycan

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16
Q

How are proteins released from a cells

A
Proteins moved to Golgi
Modified into vesicles
Moved to cell-surface membrane
Fuses with membrane
Expcytosis
17
Q

Describe DNA replication

A
DNA unwinds
DNA helicase unzips strands
Hydrogen bonds break
Both strands act as templates 
Free DNA nucleotides align 
Complementary base pairing
C to G and T to A
Hydrogen bonds reform
Sugar-phosphate back bone forms using covalent bond
DNA polymerase joins nucleotides to form polynucleotide chain
Semi-conservative replication