What is the source of chemical energy used to power a muscle cell in your arm?
A) pyruvic acid
B) adenosine triphosphate (ATP)
C) nicotinamide adenine dinucleotide (NAD+)
D) phospholipids
B
You might also like to view...
Plants that grow on other plants for structural support, but do not consume nutrients or energy from them, are called:
A. parasites. B. lycophytes. C. epiphytes. D. photophytes. E. tracheophytes.
Answer the following statements true (T) or false (F)
1. The fact that a quarterback can throw a football at approximately 50 miles per hour means that the muscles powering this throw must also be shortening at 50 miles per hour. 2. Walking or running are more energetically expensive forms of locomotion than either swimming or flying. 3. Flying animals tend to be smaller than non-flying animals. 4. The only chyme molecule that is absorbed in significant amounts by the stomach is water. 5. Frugivores are a type of herbivore.
Based on figure 16.15, which of the following best explains why toxic shock syndrome peaked in the early 1980s?
a. Some strains of S. aureus developed resistance to methicillin. b. The drug methicillin was invented in the 1980s c. A single strain of S. aureus was responsible for the toxic shock syndrome, and women could not develop immunity to this strain d. Some strains of S. aureus were able to adapt to the new environment produced by ultra-high-absorbency tampons
What causes mass extinctions?
What will be an ideal response?