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Year 1 > B1 W1 > Flashcards

B1 W1 Flashcards

1
Q

Transmission Electron Micrography

A

Beam of electrons with magnet is passed through specimen with heavy metal stain

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2
Q

Vesicles containing oxidative enzymes which carry out lipid metabolism and detoxification

A

Peroxisomes- they generate H202 which is then metabolised by catalse -> H20 and O2

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3
Q

Organelles of cisternae which assemble, modify and package cell complexes and lies close to the nucleus

A

Golgi apparatus

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4
Q

Symporters

A

Move one molecule along conc gradient and one molecule against it

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5
Q

Organelle carries out autophagy

A

Lysosyme

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6
Q

Site of Krebs cycle

A

Mitochondrial matrix

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7
Q

Citric acid/ Tricarboxylic acid cycle

A

Krebs cycle- occurs in the mitochondrial matrix

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8
Q

Network of fibres which holds the cell together

A

Cytoskeleton

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9
Q

Process where amino acid enters the Krebs cycle as an intermediate

A

Deamination

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10
Q

Molecule that cannot be converted into glucose

A

Fatty acids

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11
Q

Catabolism

A

Breakdown of molecules

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12
Q

Site of oxidative phosphorylation

A

Inner mitochondrial membrane

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13
Q

Molecule in phospholipid bilayer which strengthens the membrane and reduces fluidity and water loss

A

Cholesterol

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14
Q

Site of ribosome synthesis

A

Nucleolus

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15
Q

Site of electron transport chain and ATP powered pump in oxidative phosphorylation

A

Cristae of mitochondria

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16
Q

FIlament in cell cytoskeleton which extends from the centre and forms a bridge

A

Microtubules

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17
Q

Site of link reaction

A

Mitochondrial matrix

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18
Q

Site of fatty acid beta oxidation

A

Mitochondria

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19
Q

Cori Cycle

A

Gluconeogenesis from lactate-> pyruvate -> glucose, producing net 6ATP

20
Q

Which molecules can pass through the membrane?

A

Water and lipid soluble molecules

21
Q

Which molecule cannot be stored?

A

Protein

22
Q

Adrenaline effect on glucose

A

Causes glycogenolysisby binding to metabatropic receptors for cAMP signalling

23
Q

SEM

A

Specimen coated in heavy metal is scanned by electron beam and creates 3D image

24
Q

Pentose phosphate pathway

A

Metabolic pathway which generates NADPH for fatty acid synthesis and ribose-5 phosphate for nucleotide synthesis

25
Q

Which molecules cannot pass through the membrane?

A

Water soluble drugs/hormones, ions and polar molecules

26
Q

Lactate fermentation

A

Formation of lactate from pyruvate, which generates NADH

27
Q

Microscopy where light is passed through 2 filters

A

Fluorescent light microscopy

28
Q

Ketone bodies

A

Water soluble, formed in the liver during starvation

29
Q

Uniporter which transports glucose

A

GLUT4 transporter

30
Q

How is equlibrium established for membrane potential?

A

Leaky K+ channels which create high permeability and the Na+/k+ pump

31
Q

Hunger, dizziness, tiredness, palpitations

A

Hypoglycaemia

32
Q

Oxidation provides most energy

A

Fats- 9kcal. It is an unlimited energy store.

33
Q

Movement of glucose against its conc gradient

A

Na+/glucose cotransporter

34
Q

Thirst, need to pee, unintentional weight loss, sweet breath, feeling sick

A

Hyperglycemia

35
Q

Site of protein synthesis

A

RER- contains ribosomes

36
Q

RER

A

Carries out post translational modification

37
Q

H attached to carbon is on the same side as the double bond

A

Cis unsaturated fatty acids which are more kinky and make the membrane more fluid

38
Q

Site of carbohydrate and lipid synthesis

A

Smooth RER

39
Q

Anabolism

A

Synthesis of compounds in the cell

40
Q

Isoforms

A

Functionally similar proteins with same MRNA but different introns are removed

41
Q

Site of glycolysis

A

Cyptoplasm

42
Q

Water filled pores that allow ions to move against conc gradient

A

Channel protein

43
Q

Filament in cytoskeleton near membrane which provides structural support

A

Actin

44
Q

Product of beta oxidation

A

Acetyl coA

45
Q

Cytoskeleton components

A

Actin, intermediate filaments and microtubules

Year 1 (191 decks)

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