Test Wizard questions

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6. What substance could be represented by the letter X in the diagram below? A) carbohydrates B) ozone C) carbon dioxide D) water

A) carbohydrates

5. In plants, simple sugars are least likely to be A) linked together to form proteins B) broken down into carbon dioxide and water C) used as a source of energy D) stored in the form of starch molecules

A) linked together to form proteins

A fully functioning enzyme molecule is arranged in a complex three-dimensional shape. This shape determines the A) specific type of molecule it interacts with during a reaction B) rate at which the enzyme breaks down during a reaction it regulates C) pH of all body systems D) temperature of the products of the reaction it regulates

A) specific type of molecule it interacts with during a reaction

17. The function of most proteins depends primarily on the A) type and order of amino acids B) environment of the organism C) availability of starch molecules D) nutritional habits of the organism

A) type and order of amino acids

Base your answer to the following question on the chemical reaction represented below and on your knowledge of biology. c6h12o6 + glucose formula twice more ------- polysaccharide + Z Letter Z most likely represents molecules of A) water B) plant hormones C) glycogen D) nucleic acids

A) water

Enzymes are a type of A) Carbohydrate B) Protein C) Nucleotide D) Fatty acid

B) Protein

14. The basic building blocks of a protein are A) glucose molecules B) amino acids C) hormones D) fats

B) amino acids

Which compound is inorganic? A) glucose (C6Hl2O6) B) carbon dioxide (CO2) C) ethane (C2H6) D) stearic acid (Cl8H36O2)

B) carbon dioxide (CO2)

Shrimp that live in the cold waters off Alaska will die if introduced into warm water. One likely reason these shrimp do not survive is that enzymes in the shrimp A) start to replicate B) change shape C) are composed of fat molecules that melt D) break down into small starch molecules

B) change shape

Butter and oil are examples of food composed of A) carbohydrates B) lipids C) proteins D) nucleotides

B) lipids

The function of a specific enzyme is most directly influenced by its A) molecular size B) physical shape C) carrying capacity D) stored energy

B) physical shape

What are the building blocks of lipids? A) Glucose B) Amino acids C) Fatty acids and glycerol D) Nucleic acids

C) Fatty acids and glycerol

Plants such as the Venus flytrap produce chemical compounds that break down insects into substances that are usable by the plant. The chemical compounds that break down the insects are most likely A) fats B) minerals C) biological catalysts D) complex carbohydrates

C) biological catalysts

Most organisms contain A) organic compounds only B) inorganic compounds, only C) both organic and inorganic compounds D) neither organic nor inorganic compounds

C) both organic and inorganic compounds

Which substances are produced by the hydrolysis of an oil? A) water and nucleic acids B) amino acids and dipeptides C) fatty acids and glycerol D) glucose and water

C) fatty acids and glycerol

Which substance is an inorganic molecule? A) starch B) DNA C) water D) fat

C) water

Glucose molecules are the building blocks of what class of macromolecule? A) Proteins B) Lipids C) Nucleotides D) Carbohydrates

D) Carbohydrates

Which class of molecules is responsible for speeding up chemical reactions? A) Sugars B) Fats C) Genetic material D) Enzymes

D) Enzymes

Base your answer to the following question on the diagram below. For each of the following phrases, select the molecule, chosen from those shown below, which is best described by that phrase. A molecule that results from all dehydration synthesis reactions A) 1 B) 2 C) 3 D) 4 E) 5

E) 5


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