A man is standing in line behind you, and you notice that he is coughing up bloody phlegm. He seems underweight and fatigued. Which of the following is the most likely diagnosis given the information in this chapter?
A) a cold
B) asthma
C) tuberculosis
D) heart disease
C
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As cells continue differentiating, they increasingly lose their developmental potential and their fate becomes more restricted
A. true B. false
Eutrophic waters
A. are nutrient rich. B. may become hypoxic. C. lack phosphate, nitrate and iron. D. contain 3.5% salt. E. are nutrient rich AND may become hypoxic.
Answer the following statements true (T) or false (F)
1. For a reaction to be spontaneous it must show a net decrease in both energy and entropy.
2. A reaction with a ?G 0 is endergonic and requires a net input of energy to proceed.
3. Enzymes are consumed in chemical reactions and must therefore be replenished.
4. Temperature, pH, and ionic concentrations each play an important role in the proper functioning of enzymes. 5. Noncompetitive inhibitors bind the active site of an enzyme, reducing its activity and the subsequent formation of product.
The term used to describe all of the chemical reactions within a cell is ________.
A. metabolism B. phosphorylation C. redox reactions D. catabolism E. cellular respiration