General

Question 1

What does the Michaelis menten equation describe

Answer 1

How rxn velocity varies with substrate concentration

Question 2

MM kinetics follow a ___ curve?

Answer 2

Hyperbolic curve

Question 3

What are factors wc can affect the rxn rate

Answer 3

Substrate conc, temp, pH

Question 4

Lineweaver burke plot is used for

Answer 4

Calculated Km and Vmax; determines mechanism of action of enzyme inhibitors

Question 5

Precursor of arachidonic acid

Answer 5

Linoleic acid

Question 6

Alcohol+ diacylglycerol/ spingosine via phosphodiester bond

Answer 6

Phospholipid

Question 7

Spingosine and Fatty acid

Answer 7

Ceramide

Question 8

Ceramide and gluctose or galactose

Answer 8

Cerebroside

Question 9

Ceramide and oligosaccharide

Answer 9

Globosidr

Question 10

Ceramide and N acetylneuramic acid

Answer 10

Ganglioside

Question 11

Ceramide and sulfated galactose

Answer 11

Sulfatides

Question 12

3 main kinds of eicosanoids

Answer 12

Porstaglandin, thromboxane, leukotrienes

Question 13

Amino acid structure

Answer 13

Caboxyl, amino group, unique side chain

Question 14

Smallest amino acid

Answer 14

Glycine

Question 15

Largest amino acid

Answer 15

Tryptophan

Question 16

Amino acid used in the 1st step of heme synthesis

Answer 16

Glycine

Question 17

Major inhbitory NT in spinal cord

Answer 17

Glycine

Question 18

AA that carries N from peripheral tissues to the liver

Answer 18

Alanine

Question 19

Precuror of niacin, serotonin and melatonin

Answer 19

Tryptophan

Question 20

Precursor for homocysteine

Answer 20

Methionine

Question 21

An imino acid

Answer 21

Proline

Question 22

To cysteines form

Answer 22

Custine

Question 23

Major carrier of nitrogen from the peripheral tissues to the liver

Answer 23

Glutamine

Question 24

Precursor for GABA and glutathione

Answer 24

Glutamate

Question 25

Used in diagnosis of folic acid deficiency

Answer 25

N- formiminoglutamate excretion test

Question 26

Precursor of creatinine, urea and nitric oxide

Answer 26

Arginine

Question 27

All amino acids are chiral except for

Answer 27

Glycine

Question 28

Chemical compound that has a total net charge of zero

Answer 28

Zeitteriob

Question 29

Condotionally non essential amino acids

Answer 29

Arginine, histidine

Question 30

Most common secondary structure of proteins

Answer 30

Alpha helix

Question 31

Minor transporternof hgb in bloof

Answer 31

Hemoglobin (carbaminoHb)

Question 32

HgB form with high oxygen affinity? Taut or Relaxed

Answer 32

Relaxed

Question 33

Heme protein in heart and skeletal muscle

Answer 33

Myoglobib

Question 34

Curve followed by Hgb

Answer 34

Sigmoidal

Question 35

Deoxy form of HgB has a greater affinity for protons than does oxyhemoglobin

Answer 35

Bohr effect

Question 36

Stabilizes T structure of Hgb by forming additional salt bridges that must be broken prior to conversion to the R state

Answer 36

2,3 BPG

Question 37

Oxidized form of Hgb (Fe3)

Answer 37

Methemoglobin

Question 38

Chocolate cyanosis

Answer 38

Methemoglobinemia

Question 39

Most abundant protein in body

Answer 39

Collagen

Question 40

Most common form of collagen

Answer 40

Type I

Question 41

Amino acid sequence of collagen

Answer 41

Gly-X-Y ; x: proline= kinking; y: hydroxyproline or hydroxylysine

Question 42

HCl is produced by what cells

Answer 42

Parietal cells

Question 43

Pepsinogen is produced by

Answer 43

Chief cells

Question 44

All amino acids must transfer their amino groups to a ketoglutarate to from GLUTAMATE except

Answer 44

Lysine and threonine

Question 45

Coenzyme in transamination

Answer 45

Vit B6

Question 46

Removal of excess N from peripheral tissues is via

Answer 46

glutamine, alanine, glutaminase

Question 47

Also known as the Krebs Henseleit Cycle/ Ornithine cycle

Answer 47

Urea cycle

Question 48

How do enzymes work

Answer 48

Lower free energy of activation