Biology Quiz 2-3 And 4: Question Preview (ID: 32350)


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When carbon dioxide and water combine during photosynthesis to produce glucose and oxygen, the reactants are
a) glucose and oxygen b) water and glucose c) glucose and oxygen d) carbon dioxide and water
What is the term used to describe the energy needed to get a reaction started?
a) adhesion energy b) activation energy c) cohesion energy d) chemical energy
When hydrogen and oxygen combine to form water, water is
a) a product b) a reactant c) both a product and reactant d) neither a product or reactant
Enzymes affect chemical reactions in living cells by changing the
a) products of the reaction b) speed of the reaction c) temperature of the reaction d) pH of the reaction
Which statement is true?
a) simple sugars are made of polysaccharides b) glycerol is made of fatty acids c) RNA is made of nucleotides d) amino acids are made of proteins
Which of the following IS NOT a function of proteins?
a) store and transmit herediity b) help fight disease c) control the rate of reactions d) build tissue such as bone and muscle
A monosaccharide is a
a) carbohydrate b) lipid c) nucleic acid d) protein
Amino acid is to protein as
a) fat is to lipid b) DNA is to RNA c) Sugar is to fat d) simple sugar is to starch
Enzymes are one of the four major groups of organic compounds.
a) True b) False c) d)
Normal body temperature of humans is 40 degree celcius. Therefore an enzyme with an optimum activity temperature of 75 degrees celcius might be found in humans.
a) True b) False c) d)
Enzymes are proteins that speed up chemical reactions.
a) True b) False c) d)
In an experiment to test the affect of temperature on the rate of bacterial reproduction, a constant would be the species of bacteria.
a) True b) False c) d)
In an experiment to test the affect of temperature on the rate of bacterial reproduction, a good control group would be the species of bacteria
a) True b) False c) d)
In an experiment to test the affect of temperature on the rate of bacterial reproduction the rate of bacterial reproduction would be the dependent variable.
a) True b) False c) d)
In an experiment to test the affect of temperature on the rate of bacterial reproduction, the temperature would be the dependent variable
a) True b) False c) d)
The substances that are present when a chemical reaction begins are called the products.
a) True b) False c) d)
Lipids are important parts of biological membranes and waterproof coverings.
a) True b) False c) d)
Proteins that speed up the rate of chemical reactions in a cell without requiring high temperatures are called antibodies.
a) True b) False c) d)
When carbon dioxide and water combine during photosynthesis to produce glucose and oxygen, the products are
a) carbon dioxide and water b) water and glucose c) glucose and oxygen d) oxygen and carbon dioxide
Which of the following statements about enzymes is NOT true?
a) enzymes work best at a specific pH b) all enzymes work inside of cells c) enzymes are proteins d) enzymes are organic catalysts
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