The color changes associated with a healing bruise can be attributed to the breakdown of heme groups to ________
Fill in the blank(s) with correct word
bilirubin
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The difference between cofactors and coenzymes is that
a. cofactors are not necessary and coenzymes are necessary. b. cofactors can be inorganic or organic, coenzymes are always inorganic. c. cofactors can be inorganic or organic, coenzymes are just another name for organic cofactors. d. cofactors are always vitamins, coenzymes are always ions. e. cofactors help with essential metabolic reactions, coenzymes assist with nonessential metabolic reactions.
Microorganisms that live in severe habitats, such as very hot, acidic, or salty environments, are called ________.
A. halophiles B. thermophiles C. extremophiles D. barophiles E. psychrophiles
Why DON'T water molecules located within a column of xylem sap move apart?
A) Cohesion holds the water molecules to each other; adhesion holds water molecules to the cellulose in plant cell walls. B) Adhesion holds the water molecules to each other; tension holds water molecules to the cellulose in plant cell walls. C) Tension holds the water molecules to each other; cohesion holds water molecules to the cellulose in plant cell walls. D) Adhesion holds the water molecules to each other; cohesion holds water molecules to the cellulose in plant cell walls.
Smoking may increase your risk of lung cancer, but it does not affect the risk of bladder cancer.
a. true b. false