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Exam 3 | BCHM - Biochemistry, Quizzes of Biochemistry

Class: BCHM - Biochemistry; Subject: Biochemistry; University: The College of Saint Scholastica; Term: Forever 1989;

Typology: Quizzes

2010/2011

Uploaded on 03/09/2011

aa-gilbertson92
aa-gilbertson92 🇺🇸

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TERM 1
Receptors
DEFINITION 1
Proteins that bind small molecules (the signal) and cause a
change to occur in the cell
TERM 2
Ligands
DEFINITION 2
Chemical messages
TERM 3
Secondary Messengers
DEFINITION 3
Carry message from the receptor to the inside of the cell and
amplify the signal (cAMP)
TERM 4
What change our behaviors?
DEFINITION 4
External signals
TERM 5
Neurotransmitters
DEFINITION 5
Chemical messengers sent between neuron to neuron or
between muscle and gland (the target cell)
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Receptors

Proteins that bind small molecules (the signal) and cause a change to occur in the cell TERM 2

Ligands

DEFINITION 2 Chemical messages TERM 3

Secondary Messengers

DEFINITION 3 Carry message from the receptor to the inside of the cell and amplify the signal (cAMP) TERM 4

What change our behaviors?

DEFINITION 4 External signals TERM 5

Neurotransmitters

DEFINITION 5 Chemical messengers sent between neuron to neuron or between muscle and gland (the target cell)

Hormones

Chemical Messengers that are released by the endocrine gland into the blood stream and travels to the target cell (slower transport than neurotransmitters) TERM 7

Dendrites

DEFINITION 7 Hair like structures TERM 8

Synapse

DEFINITION 8 Space between neurons (small gap) TERM 9

Chemical name for neurotransmitters

DEFINITION 9 Acetyl Choline -stored in vesicles -released by one neuron - taken up by next neuron TERM 10

Types of Chemical Messengers

DEFINITION 10 -Amino Acids -Cholinergic -Adrenergic -Peptidergic -Steroids

What chemical returns messengers to resting

state?

Acetylcholinesterase TERM 17

Cascade of Events at Andrenergic receptor

DEFINITION 17 1.) messenger binds receptor 2.) signal is transmitted to cell interior and amplified 3.) effect: protein modification, enz. activates, opens a channel TERM 18

Glucagon

DEFINITION 18 signals starvation state TERM 19

gluconeogenesis

DEFINITION 19 making sugar (increase sugar in blood stream) TERM 20

glycolysis

DEFINITION 20 breaking of sugar (decrease sugar in the blood stream)

What is food known as in Chemistry?

-Lipids -Proteins -Carbohydrates TERM 22

Electron transport and oxidative

phosphorylation

DEFINITION 22 1.) NADH AND FADH2 bring e- and hydrogen ions from krebs cycle 2.) React with H+ and e- w/ 02 and yields water and energy 3.) would be exothermic in one step but is broken down into many steps to trap engery (heat) as ATP. TERM 23

Chemiosmotic Theory

DEFINITION 23 How ATP is made; -when e- are transferred H+ are pumped - proton gradient: high [H+] out (IMS) low [H+] in (matirx) -Is like a dam; let it out and the potential energy converts to electricity. TERM 24

ATP Synthase

DEFINITION 24 -Complex V -Last integral protein in the system -Has a proton channel -cylinder -lets H+ back in -Has a catalytic subunit - round, matrix side -uses energy to phosphorylate -ADP (makes ATP) TERM 25

Uncouplers

DEFINITION 25 -Allows H+ back into the matrix

(Carbs) Glycogen

-Polysaccharide of glucose -In liver and muscles -broken down to release glucose TERM 32

(Lipids) Diet

DEFINITION 32 -Beta-Oxidation -Breaks down FA -Fats are broken down w/ bile salts working w/ lipase TERM 33

(Proteins) Oxidative

Deamination

DEFINITION 33 Proteins are hydrolyzed in stomach by digestive enzymes (protease) Resulting AA's: AA enter AA pool - used for building proteins TERM 34

Metabolic Mainstream

DEFINITION 34 AKA common catabolic pathway -glycolysis C6H12O (glucose) break down Bridging Reaction Link glycolysis and krebs Citric Acid Cycle Electron Transport/Oxidative Phosphorylation TERM 35

What is Glycolysis?

DEFINITION 35 How the body gets energy from monosaccharides (like glucose)