WorksheetsMetabolism
Total questions: 41
Worksheet time: 21mins
organism referred to?
Gylcolysis occurs in the cytosol and does not requires oxygen; therefore it is ______.
Aerobic
Anerobic
Photosynthetic
Glycolysis requires oxygen silly
After intense activity, your muscles feel sore because:
the accumulation of NAD+
Accumulation of ATP
Accumulation of Lactic Acid
the accumulation of carbon dioxide
What is the final electron acceptor in the ETC?
Oxygen
ATP
Water
Carbon and ATP
What products of glucose oxidation are essential for oxidative phosphorylation?
Acetyl CoA
Pyruvate
NADH and FADH2
NADPH and ATP
How many net ATP are produced as a result of glycolysis?
2
4
8
12
Under anaerobic conditions, what happens to pyruvate?
Pyruvate undergoes decarboxylation
Pyruvate is oxidized in the mitochondrion
Pyruvate enters the Kreb's cycle
Pyruvate is reduced to lactic acid
Which molecule enters the Kreb's cycle?
pyruvate
glucose
acetyl CoA
oxygen
When NAD+ is _______ it becomes NADH.
reduced
catabolized
oxidized
hydrolized
What ions are pumped against their concentration gradient into the intermembrane space during the electron transport chain?
bicarbonate
hydrogen
oxygen
iron
What is the final electron acceptor in the electron transport chain?
carbon dioxide
acetyl-CoA
oxygen
pyruvate
What is the only source of energy that cells can use directly for work?
ATP
glucose
fat
protein
What is the end product of glycolysis?
glucose
acetyl CoA
pyruvate
oxaloacetate
What is a better source of glucose: fat or protein?
fat
protein
During which phase of metabolism is most energy produced?
glycolysis
fatty acid oxidation
TCA cycle
electron transport chain
What are the major products of amino acid catabolism?
Ketone bodies and tetrahydrofolate
Tetrahydrofolate and glycogen
Ketone bodies and glucose
Glucose and tetrahydrofolate
Name the energy source of the brain during starvation.
Fat
Ketone bodies
Protein
Lipids
What body conditions favor gluconeogenesis over glycolysis?
High blood sugar
Starvation
Increasing cellular levels of AMP
Low cellular levels of pyruvate
Which is an anabolic reaction?
lipolysis (breakdown of fat for energy)
glycolysis (breakdown of glucose for energy)
glycogenolysis (breakdown of glycogen to glucose)
glycogenesis (building glycogen from glucose)
What tissue is the most metabolically active in the body?
red blood cells
muscle
liver
brain
Which macronutrient is stored in the liver?
carbohydrate
protein
fat
calcium
What is the major biological macromolecule that functions as an energy reserve, structural components of cell membranes, and signaling molecules?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Another term for the word lipids.
Wax
Fats
Lipase
Metabolite
Which of the following characteristics is most directly responsible for the specificity of a protein enzyme for its substrate?
its primary structure.
its secondary and tertiary structures.
the shape and characteristics of its allosteric site.
the R groups of the amino acids in its active site.
What is the correct chemical equation for Cellular Respiration?
C6H12O6 (Glucose) + H2O (Water) -----> CO2 (Carbon Dioxide) + H2O (Water) + ATP
C6H12O6 (Glucose) + O2 (Oxygen) -----> CO2 (Carbon Dioxide) + H2O (Water) + ATP
C6H12O6 (Glucose) + O2 (Oxygen) -----> CO2 (Carbon Dioxide) + H2O (Water) + ADP
What causes HCl to become an acid?
A)the ionic forces
B)covalent exchanges with water
C)the release of H+
D)the presence of H+
