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Biochemistry > Cells > Flashcards

Cells Flashcards

1
Q

What is the function of the nucleus?

A

Contains DNA - genetic information

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2
Q

What is the function of nucleolus?

A

Synthesize ribosomes

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3
Q

What is the function of cell membrane?

A

Allows molecules to pass in and out of the cell

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4
Q

What is the function of the cell wall?

A

Structural integrity

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5
Q

What is the function of the smooth ER?

A

Manufacture of lipids

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6
Q

What is the function of the rough ER?

A

Protein modification and production

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7
Q

Do bacteria and animal cells contain RNA?

A

Yes both

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8
Q

Do bacteria contain mitochondria?

A

No

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9
Q

Are bacteria bigger or smaller than animal cells?

A

Smaller

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10
Q

What proteins makes DNA before it is wound into chromatin?

A

Histones

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11
Q

What is the function of mitochondria?

A

Energy production for the cell
Contains DNA

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12
Q

What do all cells possess?

A

Cell membrane
DNA
Cytoplasm
Ribosomes

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13
Q

What two subsets of prokaryotes are there?

A

Archaebacteria
Eubacteria

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14
Q

What is kingdom protista?

A

Mutlicellular or unicellular

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15
Q

What does autotrophic mean?

A

Photosynthetic

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16
Q

How do fungi gain nutrients?

A

By absorbing

17
Q

How do animals gain nutrients?

A

By ingesting

18
Q

What molecules can be found in a lipid bilayer?

A

Phospholipid
Cholestorol
Proteins

19
Q

What is the function of cholestorol in the lipid bilayer?

A

Provides membrane integrity - prevents lysis

20
Q

What is a haemoglobin pathology?

A

Sickle cell anemia
Thalassemia

21
Q

What cells can the nucleus ONLY be found in?

A

Eukaryotic cells

22
Q

What is another cell organelle that may hold DNA?

A

Mitochondria

23
Q

What is a ribosome pathology?

A

Treacher collins syndrome - abnormal facial development

24
Q

What is the functions of the smooth ER in the liver, adrenal cortex and muscle?

A

Liver - glycogen –> glucose
Adrenal cortex –> steroid hormone production
Muscle –> Ca2+ storage for contraction

25
Q

What cell organelles might be dysfunctioning in Alzheimers, parkinsons and epilepsy?

A

Endoplasmic reticulum, mitochondria

26
Q

What is the function of the golgi apparatus?

A

Protein folding and packaging

27
Q

What are vacuoles formed by?

A

Fusion of vesicles

28
Q

What is the name of the folded surfaces on which ATP is generated in mitochondria?

A

Cristae

29
Q

What fibrous proteins are found in eukaryotic cytoplasm?

A

Cytoskeleton
- actin microfilament
- intermediate filament
- tubulin - microtubule

Biochemistry (4 decks)

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