Glycolysis and the Krebs cycle do not capture all of the energy in a glucose molecule because
A. ATP easily vaporizes.
B. energy cannot be created or destroyed.
C. some glucose is not broken down.
D. some energy is always lost as heat during chemical reactions.
E. some energy remains in the atoms.
D. some energy is always lost as heat during chemical reactions.
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Which of the following are true regarding redox reactions? There may be more than one correct answer
A. Oxidizing agents accept electrons. B. If a molecule accepts electrons, it has been reduced. C. Redox reactions may involve the transfer of hydrogen ions (H+). D. A molecule that has gained H atoms is said to be reduced. E. Reducing agents accept H atoms. F. Oxidizing agents accept H+ ions.
What is the function of the midpiece on a sperm cell?
A) to contain the haploid nucleus B) to propel the sperm forward C) to aid the sperm's penetration of the egg D) to provide energy for movement
A kilocalorie is defined as
A) the quantity of glucose needed to increase the body temperature by 1°C. B) the quantity of heat needed to raise the temperature of 1 kg of water by 1°C. C) the quantity of food used to maintain normal bodily functions. D) the quantity of food consumed during a given type of exercise.
Which of the following is not part of a flower?
Select one: a. stem b. sepal c. petal d. stamen e. carpel