1. When something appears blue, it is absorbing all colors except __________. ye
ID: 57233 • Letter: 1
Question
1.When something appears blue, it is absorbing all colors except __________.
yellow
blue
red
green
orange
2.During heavy exercise, lactic acid can build up in our muscles. Why? How does this resemble the metabolism of bacteria and yeast?
lactic acid is results from insufficient oxygen during sugar metabolism; it is fermentation
lactic acid accumulates when we are dehydrated; bacteria and yeast use the same pathway
lactic acid is built up from carbon dioxide; bacteria and yeast store energy in this way
3.Why must a cell keep a similar concentration of dissolved substances with the fluid surrounding them?
to avoid dilution of potential energy
to avoid osmotic imbalance and rapid gain or loss of water
to maintain the correct amount of dehydration and hydrolysis
4.The main reason that cellular respiration needs to occur step by step instead of a single, big reaction is
cells don't store enough oxygen
too much energy would be released for the cell to harness
5.Enzymes are catalysts because they operate to:
raise activation energy
lower activation energy
supply activation energy
supply the reactants
cells don't have many mitochondria.
cells produce the enzymes needed for cellular respiration very slowly
6.When ATP powers a reaction it becomes ADP. The ADP
can reform ATP by an exergonic reaction
is a waste product for lysosomal breakdown
can reform ATP by an endergonic reaction
can reform ATP by an oxidation reaction
can reform ATP by an equilibrium reaction
7.What is the difference between potential and kinetic energy?
potential is stored, kinetic is being used
potential is being used, kinetic is ready to be used
potential is negative, kinetic is positive
8.The products of cellular respiration are
carbon dioxide, water, and ATP
glucose, water, and ATP
glucose, carbon dioxide, and ATP
oxygen, ATP, and water
carbon dioxide, glucose, and water
9.Glycolysis
does not use oxygen
uses oxygen
uses carbon dioxide
10.Objects that are not actively moving but have the capacity to do so are said to possess:
kinetic energy
entropy
potential energy
living energy
11.The first stage of cellular respiration, called ___________, takes place in the cytoplasm of the cell and needs no oxygen.
photorespiration
citric acid cycle
glycolysis
oxidation
12.Objects that are moving are said to possess:
living energy
potential energy
entropy
kinetic energy
13.Burning wood generates heat and light. What type of reaction is this?
exergonic
kinetic energy
endergonic
potential energy
equilibrium
14.Both plant and animal cells have mitochondria because they both
carry on respiration
carry on photosynthesis.
require water
15.What are the inputs and the output molecules for the overall photosynthetic process?
input sugar and oxygen; output carbon dioxide and water
input oxygen and water; output sugar and carbon dioxide
input carbon dioxide and water;output sugar and oxygen
16.What kind of reaction is photosynthesis?
endergonic
kinetic energy
exergonic
potential energy
equilibrium
17.The energy to power the Calvin cycle comes from
cellular respiration
oxygen
the light reactions of photosynthesis
18.Which of the following can be broken down into intermediate products that enter cellular respiration?
Proteins
Lipids
Carbohydrates
All of these.
Explanation / Answer
1.Green
2. during heavy excersise thelactate is accumulated beacuse of anerobic respiration which is similar to therespiration taking place in the yeast and other microbes . during aerobic respiration the pyruvate is not converted into lactate ,but during anerobic respiration there will be more lactate production due to deprivation of the oxygen
3. to avoid osmotic imbalance and rapid gain or loss of water
4. The main reason for the cellular process to occur in the step by step process i s to
5. low activation energy
6. can ATP reform it by endergonic reaction
7. potential is negative ,kinetic is positive
8. carbondioxide ,water and ATP
9. uses the oxygen
10. kinetic energy
11.Photorespiration
12. Living energy
13. Endergonic
14. carry onthe respiration
15 input is sugar and oxygen ,output is co2 and water
16 Equilibrium
17. cellular respiration
18. carbohydrates .
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