Read the following scenario to answer the following question. Cellular respiration converts the energy of fuel molecules to a form of energy that a cell can use to perform work. In an average day, most adult humans need to consume about 2,000 Calories to maintain their health. However, the exact amount of dietary Calories a person needs depends upon many factors, including the person's age, physical activity, size, and health. Foods that we consume vary greatly in their nutritional content and quality. A large hard-boiled egg, for example, has about 75 dietary Calories and contains about 70% of our recommended daily intake of cholesterol. If a person eats one hard-boiled egg and digests the egg fully, cellular respiration will convert most of this energy into ________.
a. carbon dioxide
b. sugars
c. heat
d. ATP
e. none of the above
c. heat
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The 5?ACU-UUC-ACU-AUG-UUU-UUA-UCC-UCC-ACU-CCU-UGA3? mRNA transcript results in which of the following polypeptide sequences?
The following codons and the amino acids they encode is as follows: AUG = Start or Met; UUU, UUC = Phe; UUA, UUG = Leu; UCU, UCC = Ser; CCU, CCC = Pro; ACU, ACC = Thr; UGA = Stop. A. Thr-Phe-Thr B. Phe-Leu-Ser-Ser-Thr-Pro C. Met-Phe-Leu-Ser-Ser-Thr-Pro D. Thr-Phe-Thr-Phe-Leu-Ser-Ser-Thr-Pro E. Met-Phe-Leu-Ser-Ser
Which of the following is a true statement?
a. If current world resources were distributed evenly, every person on the Earth could lead a middle class American lifestyle b. The demographic transition model will always apply to developed, modern nations. c. Scientists predict that the Earth's population will continue rapid growth until the year 2500. d. The United States accounts for 4.6% of the world-s population but uses 25% of its resources.
All organisms plus the nonliving components of a defined area is a(n)
A. population. B. community. C. ecosystem. D. habitat. E. niche.
Action potentials travel down nonmyelinated axons at ________ action potentials travel down myelinated axons.
A. variable speeds, sometimes faster and sometimes slower than B. slower speeds than C. faster speeds than D. the same speed