The volcanic island Selkirk arose from the North Atlantic off Iceland in 1948. The first organisms to start living there are said to be ________
A) rogue organisms B) climax species C) central species D) pioneer species
Answer: D
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The Km for enzyme Q is 1 × 10-6 M. Q catalyzes the reaction R?S at a velocity of 30 µmole/min when the concentration of substrate is 0.02 M; hence, Vmax is approximately 30 µmole/min
Assuming Michaelis-Menten kinetics is followed, what will the reaction velocity be when [S] is 10-7 M? A. 30 µmole/min B 3.0 × 10-7 µmole/min C. 2.7 µmole/min D. 2.7 × 10-12 µmole/min E. 0.27 µmole/min
Answer the following statements true (T) or false (F)
1. When a molecule of NAD+ gains a hydrogen atom, the molecule becomes reduced. 2. Proteins and fats may be used as energy sources to drive aerobic respiration. 3. During the energy investment phase of glycolysis, glucose has a decrease in free energy. 4. The rate of photosynthesis is much greater in green light than red light.
Newtons 2nd law of motion
What will be an ideal response?
Barrier reefs are separated from land by shallow lagoons
Indicate whether the statement is true or false