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WorksheetsCollege A&P Biochemistry
Total questions: 37
Worksheet time: 23mins
Which group contains only molecules that are each assembled from smaller organic compounds?
proteins, water, DNA, fats
proteins, starch, carbon dioxide, water
proteins, DNA, fats, starch
proteins, carbon dioxide, DNA, starch
The diagram below represents a sequence of events that occurs in living things. Letter X represents
inorganic molecules
organic molecules
biological catalysts
simple sugars
Proteins, starch, and DNA are similar in that they are all
organic compounds
parts of genes
made of amino acids
made of simple sugars
The accompanying diagram illustrates a biochemical process that occurs in organisms. The substance labeled “catalyst” is also known as
hormones
antibodies
enzymes
an inorganic compound
Which substances are necessary for the synthesis of most materials in an organism?
carbohydrates
enzymes
hormones
antibodies
Which statement describes all enzymes?
They control the transport of materials.
They provide energy for chemical reactions.
They affect the rate of chemical reactions.
They absorb oxygen from the environment.
Which characteristic allows enzymes to function in a specific way?
Enzymes are complex compounds composed of starch.
Each enzyme has a characteristic shape.
Enzymes are long, complex fats.
Each enzyme is made up of four subunits.
An enzyme and four different molecules are shown in the accompanying diagram. The enzyme would most likely affect reactions involving
molecule A, only
molecule C, only
molecules B and D
molecules A and C
The diagram below represents a beaker containing a solution of various molecules involved in digestion. Which structures represent products of digestion?
A and D
B and E
B and C
D and E
Which statement describes starches, fats, proteins, and DNA?
They are used to store genetic information.
They are complex molecules made from smaller molecules.
They are used to assemble larger inorganic materials.
They are simple molecules used as energy sources.
Enzymes function by -
lowering activation energy
lock & key model
essential component of metabolism
can be reused/recycled
all of the above
Which sugars are best providing consistent energy over time?
monosaccharides
disaccharides
polysaccharides
The pH of most of your body fluids would be -
6.5-7.5
3-4
9-11
12-14
What is the role of lipids in the cell membrane?
Provide energy
Store genetic information
Act as a barrier
Catalyze reactions
Which of the following is a characteristic of enzymes?
They are consumed in reactions
They increase activation energy
They are specific to substrates
They are made of lipids
