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Exam 2 107
Ch 5.10-7
85
Biology
Undergraduate 1
07/15/2019

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Term
competitive inhibition
Definition
binds the active site
Term
noncompetitive inhibition
Definition
changes the enzymes shape by binding randomly
Term
What denatures a protein?
Definition
Temperature, pH, acids, bases
Term
reactants for cellular respiration
Definition
sugar, oxygen
Term
products of cellular respiration
Definition
carbon dioxide, water, atp, heat
Term
redox reaction
Definition
transfer of electrons
Term
how do you trace the movement of electrons
Definition
you can count hydrogen
Term
oxidation is the ___ of electrons, reduction is the ___ of electrons
Definition
loss, gain
Term
3 steps of cellular respiration
Definition
1. glycolysis, 2. pyruvate oxidation AND citric acid cycle, 3. oxidative phosphorylation
Term
glycolysis occurs in ___
Definition
the cytoplasm
Term
pyruvate oxidation and citric acid cycle occur in ___
Definition
the mitochondria
Term
oxidative phosphorylation occurs in ___
Definition
the mitochondria
Term
True or False: Gylocolysis does not need ATP
Definition
False: it uses ATP in the energy investment phase
Term
Glycolysis reactants
Definition
glucose, adp, NAD+
Term
pyruvate oxidation reactants
Definition
pyruvate, NAD+
Term
citric acid cycle reactants
Definition
Acetyl CoA, 3NAD+, FAD, ADP
Term
the electron transport chain's purpose is to
Definition
pump hydrogen ions into the intermembrane space
Term
oxidative phosphorylation reactants are...
Definition
NADH, O2, FADH2, ADP
Term
Glycolysis products
Definition
pyruvate, ATP, NADH
Term
pyruvate oxidation products
Definition
acetyl coA, Co2, NADH
Term
citric acid cycle products
Definition
3NADH, ATP, FADH2, 2Co2
Term
Which stage in cellular respiration produces the most ATP?
Definition
oxidative phosphorylation
Term
The first stage of glycolysis is:
Definition
the energy investment phase
Term
During the Citric acid cycle, one ADP is made into ATP. How many ATP ends up in the product?
Definition
2, the cycle goes around twice
Term
What are the functions of glycolysis?
Definition
to create energy, and to produce ATP, pyruvate and NADH
Term
Where in the mitochondrial matrix do hydrogen ions build up?
Definition
in the intermembrane space
Term
A "water rotor" is often used to describe...
Definition
ATP synthase in oxidative phosphorylation
Term
ATP synthase functions by
Definition
producing ATP by allowing electrons through a rotor
Term
chemiosmosis
Definition
H+ gradient in inter-membrane holds potential energy
Term
Fermentation is a_____
Definition
Anaerobic
Term
to be aerobic is to need oxygen
True or False
Definition
True
Term
Fermentation recycles ___ back to ___
Definition
NADH, NAD+
Term
Plants use cellular respiration
True or False
Definition
True, they do photosynthesis and cellular respiration
Term
Stomata
Definition
allows the exchange of gases (Co2 and O2)
Term
Mysophil
Definition
plant cell that does photosynthesis
Term
The xylem transports ____, and the phloem transports ____
Definition
water, sugar
Term
If there were to be too much Co2 in the air, a plant's stoma would ____, causing the plant to ____
Definition
close, die
Term
Stromata
Definition
fluid within the chloroplast
Term
The organelle that performs photosynthesis is
Definition
the chloroplast
Term
Photosynthesis is
a. exergonic
b. endergonic
c. energy
d. none of the above
Definition
b. endergonic
Term
cellular respiration is
a. exergonic
b. endergonic
c. catalyst
d. none of the above
Definition
a. exergonic
Term
NADH functions as
Definition
an electron carrier
Term
The two stages of photosynthesis are
Definition
the light, and dark (calvin cycle)
Term
light reactions occur in the
Definition
thylakoid
Term
the Calvin cycle occurs in the
Definition
stroma
Term
True or False
The Calvin Cycle needs light
Definition
False, but it needs light reactions
Term
Reactants of light stage in photosynthesis
Definition
water, ADP, NADP+
Term
Products of light stage in photosynthesis
Definition
Oxygen, ATP, NADPH
Term
ATP and NADPH in the light stage products makes ____
Definition
glucose
Term
Reactants of calvin cycle
Definition
O2, NADPH, ATP
Term
Products of calvin cycle
Definition
glucose, ADP, NADP+
Term
True or False
The chloroplast is in the thylakoid
Definition
False, the thylakoid is inside of the chloroplast
Term
What happens if you put a plant in green light
Definition
it die
Term
The function of a chlorophyll
Definition
Absorbs light protons and converts to chemical energy
Term
True or False
Shorter wavelengths have more energy
Definition
True
Term
photosystem
Definition
protein embedded in the membrane of thylakoid
Term
electrons in the photo system are passed on to
Definition
the reaction center
Term
Which cycle is known for "dumping off" electrons
Definition
citric acid cycle
Term
Exergonic ____ energy, endergonic ___ energy
Definition
releases, takes in
Term
ATP to ADP is
a. exergonic
b. endergonic
Definition
exergonic
Term
True or False
Catalysts do not get used up in a reaction
Definition
True
Term
kinetic energy is like
a. a car hitting another car
or
b. a soda can in the freezer
Definition
a.
Term
chemical energy
Definition
energy that can be transformed into instant energy
Term
the first law of thermodynamics states
Definition
that energy in the universe is constant
Term
the second law of thermodynamics
Definition
every energy transfer increases the entropy of the universe
Term
energy coupling
Definition
using energy from exergonic reactions for endergonic reactions
Term
phosphorylation
Definition
transferring phosphate from ATP to another molecule
Term
the reactants must pass ______ before a reaction can begin
Definition
an activation barrier
Term
an electrons specific reactant
Definition
substrate
Term
active site
Definition
a groove on an enzyme for substrate to fit
Term
induced fit in enzymes functions to
Definition
catalyze the reaction
Term
a competitive inhibitor
Definition
goes into active site to prevent substrate from binding
Term
noncompetitive inhibitor
Definition
binds somewhere on enzyme to change shape where the substrate consequently cannot fit
Term
heat energy is
Definition
entropy
Term
to catalyze means to
Definition
speed up reaction
Term
True or False
Heat energy can be used for cellular work
Definition
FALSE
Term
the function of a metabolic pathway
Definition
take food molecules and break them down into energy
Term
shape in enzymes determines
Definition
amino acids in tertiary structure
Term
Helpers of enzymes include
Definition
Coenzymes and cofactors
Term
Chloe is the best
True or False
Definition
FALSE, ur mom is
Term
photoautotrophs
Definition
use energy of light
Term
heterotrophs
Definition
cannot make their own food
Term
what converts solar energy to chemical energy
Definition
chlorophyll
Term
the O2 released from photosynthesis comes from ____
Definition
water
Term
light reaction occurs in
Definition
the thylakoid
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