Which conditions affect enzymes and their function?

temperature, ph of surroundings

What should you do the day before the test?

Eat, sleep and live to study AP Biology

Non-competitve inhibitors:

Change the shape of the active site

Photosystem 1 is known as P700 because

it is best at absorbing wavelengths around 700nm.

What is the role of O2 in cellular respiration?

It is the final electron acceptor for the E.T.C.

Competitive Inhibitors

Blocks active site of an enzyme by bonding to active site

In the reaction: C6H12O6 + 6O2 → 6CO2 + 6H2O

Oxygen becomes reduced and glucose becomes oxidized

Why is glycolysis considered to be one of the first metabolic pathways to have evolved?

It is in the cytoplasm. Involves no O2. Found in most organisms

Which of the following is the correct distinction between autotrophs and heterotrophs?

Autotrophs can nourish themselves using CO2

What is the main purpose of carotenoids in plants?

They absorb excessive light energy.

Photosynthesis is a redox process in which

CO2 is reduced and H2O is oxidized

proteins used to catalyze reactions

In a plant cell, where are the ATP synthase enzyme complexes located?

On both the thylakoid and inner mitochondrial membranes.

Some prokaryotes use anaerobic respiration, a process that

Uses something other than O2 as the final electron acceptor

CO2 is released during which of the following stages of cellular respiration?

Oxidation of pyruvate and the Kreb's cycle

Which of the following is true about enzymes?

Enzymes lose their shape if they get too hot

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AP Bio Energetics

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AP Biology Cellular Respiration & Photosynthesis Review: A review of photosynthesis and respiration for the test on cells and cell processes.

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Questions 34

Answers

1
Where are the proteins of the electron transport chain located?
Mitochondrial Outer Membrane
Mitochondrial Inner Membrane Space
Cytoplasm
Mitochondrial Inner Membrane
2
What kind of inhibitors attach to the allosteric sites of certain enzymes?
Competitive inhibitors
Noncompetitive inhibitors
Both types of inhibitors
Feeling Lucky!
3
Which conditions affect enzymes and their function?
temperature, ph of surroundings
ph of surroundings, shape
temperature, shape
temperature, amount of water
4
What should you do the day before the test?
Run a marathon
Eat, sleep and live to study AP Biology
Watch Netflix
Play video games
5
What is the ideal temperature for most enzymes?
30 Degrees Celsius
47 Degrees Celsius
0 Degrees Celsius
37 Degrees Celsius
6
Non-competitve inhibitors:
Change the pH of an enzyme's environment
Consume the substrates an enzyme needs to perform a reaction
Bind to the active site of an enzyme
Change the shape of the active site
7
Photosystem 1 is known as P700 because
it sounds more important.
there are 700 chlorophyll molecules in its center.
there are 700 photosystem 1's in each chloroplast.
it is best at absorbing wavelengths around 700nm.
8
Which metabolic pathway is common to both cellular respiration and fermenation?
Chemiosmosis
The Kreb's Cycle
Oxidative Phosphorylation
Glycolysis
9
When glucose is oxidized to CO₂, the energy that does not get converted to ATP is lost as what?
Nothing, there is no loss of energy in this system.
Heat
Cold
NADH
10
What is the role of O₂ in cellular respiration?
It is reduced in glycolysis as glucose is oxidized.
It provides electrons to the E.T.C.
It combines with the carbon removed during the Kreb's cycle.
It is the final electron acceptor for the E.T.C.
11
What molecules have similar shapes to that of a substrate?
precursor molecule
competitive inhibitor
unhibitor molecule
noncompetitve inhibitor
12
Thylakoids do what ?
Breakdown chlorophyll molecules by oxidizing the electrons
Increase the effectiveness of the Calvin Cycle by contributing CO2
Produce ATP and NADPH
Increase the reduction of H2O
13
Competitive Inhibitors
A chemical reaction that releases energy
Competitive inhibitor plant
Temperature and PH
Blocks active site of an enzyme by bonding to active site
14
In the reaction: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
Both glucose and oxygen become oxidized
Oxygen becomes reduced and glucose becomes oxidized
Both glucose and oxygen become reduced
Glucose becomes reduced and oxygen becomes oxidized
15
Why is glycolysis considered to be one of the first metabolic pathways to have evolved?
It is in the cytoplasm. Involves no O2. Found in most organisms
It is found in prokaryotic cells but not eukaryotic
It produces much less ATP than oxidative phosphorylation
Requires the presence of organelles found only in eukaryotes
16
The chloroplasts are pushed to the outside because of what other large internal structure?
Food Vacuole
Cell Wall
Central Vacuole
Nucleus
17
What suffix hints that you might be dealing with an enzyme?
-ase
-ose
-ise
-sis
18
A plant leaf appears to be reddish yellow. What wavelengths are being absorbed?
Green & Yellow
Red & Yellow
Blue & Violet
Feeling Lucky!
19
What are the products of the light reactions that are subsequently used by the Calvin Cycle?
Feeling Lucky!
ATP & NADPH
Electrons and H+
O2 & CO2
20
Which of the following is the correct distinction between autotrophs and heterotrophs?
Only hetertrophs require compounds from the environment
Autotrophs can nourish themselves using CO2
Only heterotrophs have mitochondria
Cellular respiration is unique to heterotrophs
21
What is the main purpose of carotenoids in plants?
They take up toxins from the water.
They cover the sensitive chromosomes of plants.
They absorb excessive light energy.
They reflect orange light.
22
Which process in eukaryotic cells will proceed whether O₂ is present or not?
Oxidative Phosphorylation
Chemiosmosis
Electron Transport Chain
Glycolysis
23
Photosynthesis is a redox process in which
H2O acts as a reducing agent
CO2 is reduced and H2O is oxidized
O2 acts as an oxidizing agent
CO2 is oxidized and H2O is reduced
24
The net result of ATP production for each molecule of glucose is in what number range?
45-47
21-25
Very few
36-38
25
When an enzyme changes shape and no longer functions.
Inactive
Denatured
Mutated
Denurtured
26
What are enzymes?
structures used for storage
proteins used to catalyze reactions
nucleic acids
structures used for transport in the cell
27
In a plant cell, where are the ATP synthase enzyme complexes located?
Only in the thylakoid membrane.
Only on the inner mitochondrial membrane.
On both the thylakoid and inner mitochondrial membranes.
Only in the plasma membrane.
28
Some prokaryotes use anaerobic respiration, a process that
Involves the electron transport chain
Does not involve glycolysis
Uses something other than O2 as the final electron acceptor
Relies on chemiosmosis for the production of ATP
29
What range of wavelengths are chlorophylls most effective at absorbing?
625 - 675nm
425 - 475nm
550 - 625nm
475 - 550nm
30
CO₂ is released during which of the following stages of cellular respiration?
Glycolysis
Oxidative phosphorylation
The Kreb's cycle and oxidative phosphorylation
Oxidation of pyruvate and the Kreb's cycle
31
Which of the following is true about enzymes?
Any enzyme will help any reaction.
Enzymes are used up in reactions.
Enzymes lose their shape if they get too hot
Enzymes are made from lipid cells
32
Finish the equation: 6CO₂ + 6H₂O + Light Energy → _____ + _____
C6H12O6 + H2O
C6H12O6 + 6ATP
C6H12O6 + 6O2
C12H22O12 + 6O2
33
How do enzymes work?
They raise activation energy
They use magic
They lower activation energy
It's a miracle!
34
Finish the equation: C₆H₁₂O₆ + 6O₂ → _____ + _____ + _____
C6H12O6 + 6CO2 + 38 ATP
6C3PO + 6O2 + The Force
6CO2 + 6H2O + 38 TP
C6H12O6 + 6O2 + 38 ATP

AP Bio Energetics Flashcards | StudBud