Biology Biochemistry

In the body of a human, the types of chemical activities occurring within cells are most dependent on the

• biological catalysts present

• size of the cell

• number of chromosomes in the cell

• kind of sugar found on each chromosome

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In living cells, chemical processes, such as synthesis, all require the action of

• specialized antibiotics

• hormones

• salts

• biological catalysts

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

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NGSS.HS-LS1-6

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

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NGSS.HS-LS1-6

Proteins, starch, and DNA are similar in that they are all

• organic compounds

• parts of genes

• made of amino acids

• made of simple sugars

Organic compounds are used as building blocks for

• water, DNA, and starches

• water, proteins, and oxygen

• proteins, DNA, and carbon dioxide

• proteins, starches, and fats

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NGSS.HS-LS1-6

Which substances are necessary for the synthesis of most materials in an organism?

• carbohydrates

• enzymes

• hormones

• antibodies

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NGSS.HS-LS1-1

NGSS.HS-LS1-6

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.