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- 1. Multiple ChoiceWhat is a substance called if it speeds up a chemical reaction?reusablecatalystspecificfragile
- 2. Multiple ChoiceEach enzyme only has 1 substrate that will fit its active site. What is this called?reusablilitydenaturationspecificityfragility
- 3. Multiple Choice
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?Enzymes increase the energy of the reactants.Enzymes decrease the energy level of the products.Enzyme decrease the activation energy of the reaction.Enzymes reverse the direction of the reaction. - 4. Multiple ChoiceWhich of the following conclusions can be drawn from this graph?The optimum pH of the enzyme is 6.6.The optimum pH of the enzyme is 5.8The enzyme’s activity increases as pH increases 5.0 to 9.0The enzyme’s activity is greater around pH of 8.0 .
- 5. Multiple ChoiceAny substance that is acted upon by an enzyme is called a(n)?CoenzymeSubstrateVitaminPolypeptide
- 6. Multiple ChoiceIn the diagram, what is letter A?productsubstrateenzyme-substrate complexactive site
- 7. Multiple ChoiceEnzymes are...nucleic acidsproteinslipidscarbohydrates
- 8. Multiple ChoiceWhat happens when enzymes are heated to a high temperature?The enzymes die.The shapes of the enzyme are altered denatureThe enzymes' amino acid sequence changes.The enzymes remain the same
- 9. Multiple ChoiceEnzymes speed up reaction rates by changing...Activation EnergypHHydrogen BondsKinetic Energy
- 10. Multiple ChoiceIn which way are photosynthesis and cellular respiration different?Cellular respiration stores ATP, while photosynthesis releases ATP.Cellular respiration produces oxygen, while photosynthesis uses oxygen.Photosynthesis releases energy, while cellular respiration stores energy.Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
- 11. Multiple ChoiceWhat is the correct equation for cellular respiration?6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
- 12. Multiple ChoiceFermentation enables glycolysis to continue underanaerobic conditionsaerobic conditionsphotosynthetic conditionshydrophobic conditions
- 13. Multiple Choice
Which organism go through cellular respiration?
animals
plants
both animals and plants
none
- 14. Multiple Choice
Cellular Respiration occurs in what cell organelle?
chloroplast
cytoplasm
mitochondria
animal
- 15. Multiple Choice
Which molecule is the reactant of Glycolysis?
water
glucose
carbon dioxide
ATP
- 16. Multiple ChoiceWhich type of respiration is most efficient?AerobicAnaerobic
- 17. Multiple ChoiceThe purpose of cellular respiration is to produce ?energyoxygensugarprotein
- 18. Multiple ChoiceWhat is the sugar that carbs are broken down to?sucrosemaltoseglucoselactose
- 19. Multiple ChoiceWhat is the energy molecule?DNAATPRNAAAA
- 20. Multiple ChoiceThe splitting of the glucose molecule is called?synthesisdenaturalizationglycolysisdissolving
- 21. Multiple ChoiceThe waste gas given off by cellular respiration is?oxygencarbon dioxidenitrogenmethane
- 22. Multiple ChoiceWhat is the name of the 1st step of cellular respiration?GlycolysisKreb's CycleETCAnaerobic respiration
- 23. Multiple ChoiceWhere does glycolysis take place?CytoplasmStromaThylakoidMitochondria
- 24. Multiple ChoiceThis process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.photosynthesislight-independent reactioncellular respirationlight-dependent reaction
- 25. Multiple Choice
Which of the following are reactants of photosynthesis?
CO2 and H2O
O2
H2O and Glucose
None of the above
- 26. Multiple Choice
Photosynthesis occurs in:
Mitochondria
Chloroplasts
Humans
Animals
- 27. Multiple Choice
In cellular respiration, carbon starts out in the glucose molecule, but ends up in a(n)
oxygen molecule
water molecule
CO2 molecule
C6H12O2 molecule
- 28. Multiple Choice
In photosynthesis, what kind of molecule does hydrogen start in?
water
oxygen
glucose
carbon dioxide
- 29. Multiple Choice
Cellular respiration happens
only in plants
only in animals
only in humans and animals
in plants and animals
- 30. Multiple Choice
The products of cellular respiration are
air and water
carbon dioxide, water, and ATP
glucose and carbon dioxide
ATP, glucose, and oxygen
- 31. Multiple Choice
For photosynthesis, a plant needs water, sun, and...
oxygen
carbon dioxide
glucose
mitochondria
- 32. Multiple Choice
What is a product of photosynthesis AND a reactant for cellular respiration?
oxygen
water
carbon dioxide
Doctor Pepper
- 33. Multiple Choice
Which of these is the correct equation for photosynthesis?
6O2 + C6H12O6 --> 6CO2 + 6H2O
6O2 + 6CO2 --> C6H12O6 + 6H2O
6CO2 + 12H2O --> C6H12O6 + 6H2O + 6O2
6CO2 + 6H2O --> O2 + C6H12O6
- 34. Multiple Choice
What are the products of photosynthesis?
Oxygen and Energy
Carbon Dioxide and Glucose
Glucose and Oxygen
Oxygen and Water
- 35. Multiple ChoiceMost plants appear green because chlorophyllabsorbs green light.absorbs violet light.reflects green light.does not absorb violet light.
- 36. Multiple ChoiceWhat molecule absorbs sunlight for photosynthesis?chloroplastthylakoidgranachlorophyll
- 37. Multiple Choice
Main products of the Calvin Cycle
Oxygen, NADP+, ADP
Glucose, CO2, ADP
ADP, NADP+, Glucose
ATP, NADPH, Oxygen
- 38. Multiple Choice
The Calvin Cycle occurs in the
Thylakoid
Grana
Inner membrane of chloroplast
Stroma
- 39. Multiple ChoiceWhere do the light reactions happen?mitochondria membranethylakoid membranestromacentral vacuole
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