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BIOCHEMISTRY > Intro to cell biology > Flashcards

Intro to cell biology Flashcards

1
Q

What do phospholipids do in solution?

A

Micelle

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2
Q

Do prokaryotes have a nucleus?

A

NO

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3
Q

What do prokaryotes have?

A

Circular DNA
Cell wall
pill
flagellum

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4
Q

What are examples of eukaryotes?

A

plants
animals
Protists - Fungi/ Algae/ Protozoa

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5
Q

What does RER Do?

A

Synthesise proteins

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6
Q

What does Golgi do?

A

Glycosylation of proteins

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7
Q

What do lysosymes do?

A

breakdown proteins

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8
Q

What does cytoskeleton do?

A

maintain shape and integrity of cell

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9
Q

what are Proteins involved in cytoskeleton?

A

tubulin
actin
keratin

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10
Q

What does plant cell have?

A

chloroplast, cell wall

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11
Q

Does prokaryotes have any organelles >

A

NO only ribosomes

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12
Q

Are there introns in prokaryotes ?

A

NO

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13
Q

How many types of RNA polymerase in prokaryote ?

A

1 type

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14
Q

How does prokaryote divide?

A

Fission

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15
Q

What is interphase?

A

G1 > S> G2> Mitosis

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16
Q

What happens in G1 phase?

A

synthesis of enzymes for S phase

17
Q

What happens in S phase?

A

DNA synthesis
- each chromosome has 2 chromatids
-DNA Doubles
Histone made

18
Q

What happens in G2 phase?

A

microtubules made

protein synthesis stops

19
Q

What is mitosis phase?

A

PMAT

20
Q

What is prophase?

A

chromatin condense into chromosome

21
Q

What is metaphase?

A

chromosome align in centre

22
Q

What is anaphase?

A

Sister chromatids pulled apart to mitotic spindle

Division of membrane

23
Q

What is Telophase?

A

nuclear envelope reforms and 2 daughter cells

24
Q

Why is Virus a retrovirus?

A

RNA Genome

25
Q

How does virus make DNA copy of its RNA genome?

A

reverse transcriptase

26
Q

What are prions?

A

small protein infections- resist anything that would damage nucleic acids

27
Q

What is an example of a prion disease?

A

Scrapie

28
Q

How does prions cause disease?

A

conformational change in shape of prion protein so causes proteins nearby to change shape

29
Q

What can prions cause?

A

Holes in brain so spongiform encephalopathesis

BIOCHEMISTRY (6 decks)

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