What is the fundamental source of energy in the food you eat?
plants
photosynthesis
sugar
sun***
Positive hydrogen ions form during intermediate stages of photosynthesis. What is the composition of these ions?
a single proton***
two protons and an electron
a proton and two electrons
a proton and an electron
Which statement is true?
The Calvin cycle is the light-dependent stage of photosynthesis and occurs in the thylakoid membrane.
The Calvin cycle is the light-independent stage of photosynthesis and occurs in the thylakoid membrane.
The Calvin cycle is the light-independent stage of photosynthesis and occurs in the stroma.***
The Calvin cycle is the light-dependent stage of photosynthesis and occurs in the stroma.
Higher energy contained in the sugar molecules produced by photosynthesis comes from
light.***
water molecules.
ATP.
carbon dioxide molecules.
Which equation best summarizes cellular respiration?
6H2O + 6CO2 → C6H12O6 + 6O2 + Energy
6H2O + 6CO2 + Energy → C6H12O6 + 6O2
C6H12O6 + 6O2 + 6CO2 → 6H2O + Energy
C6H12O6 + 6O2 → 6H2O + 6CO2 + Energy***
Which statement is true?
Fats have a lower amount of energy than carbohydrates.
Fats and proteins have the same amount of energy.
Carbohydrates have a higher amount of energy than proteins.
Proteins and carbohydrates have the same amount of energy.***
In the Krebs cycle, how is citric acid formed?
Pyruvic acid molecules are broken down by an acetyl group.
Acetyl-CoA joins with a large molecule called oxaloacetic acid.***
Carbon dioxide bonds with a chain of coenzyme A.
Enzymes combine hydrogen ions, oxygen, and electrons.
The following are components of cellular respiration except
electron transport chain.
glycolysis.
electrolysis.***
the Krebs cycle.
Which macromolecule provides the energy that starts glycolysis?
ATP***
sugar
carbon dioxide
water
During which phase of cellular respiration is carbon dioxide released?
Krebs cycle
electron transport chain***
digestion
glycolysis
Which compound is a reactant in cellular respiration?
oxygen***
water
ATP
carbon dioxide
How many O2 molecules are required for two glucose molecules to undergo cellular respiration?
18
2
12***
6
Which statement is true?
Endotherms can insulate their bodies but can only self-regulate their body temperature voluntarily.
Endotherms cannot insulate their bodies and can only self-regulate their body temperature involuntarily.
Ectotherms can insulate their bodies and can self-regulate their body temperature voluntarily and involuntarily.
Ectotherms cannot insulate their bodies and can only self-regulate their body temperature voluntarily.***
Which activity uses ATP to raise body temperature?
hibernating
storing fats
panting
shivering***
1 answer
1 answer