In the future, it may be possible to screen for a number of different types of cancer by a simple blood test. If a blood test indicates a very early stage of lung cancer, where is the most likely place that the tumor will be growing?
A. in the parietal pleural membrane
B. in the wall of a large bronchus
C. in the visceral pleural membrane
D. in the wall of an alveolus
E. in the wall of a pulmonary vein
B. in the wall of a large bronchus
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Which of the following statements is CORRECT?
a. A hypothesis that does not generate a testable prediction is not useful. b. Common sense is usually a good substitute for the scientific method when trying to understand the world. c. It is not necessary to make observations as part of the scientific method. d. The scientific method can be used only to understand scientific phenomena. e. All of the above are correct.
The enzyme responsible for oxidizing pyruvate once it enters the mitochondrial matrix is
A. pyruvate oxidase B. pyruvate dehydrogenase. C. hexokinase D. ATP synthase. E. peptidase.
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
Which statement describes a similarity between the diploid and haploid phases of plant life?
a. both end in fertilization b. both are multicellular c. both are immediately followed by meiosis d. both contain sporophytes e. both contain spores