An element with more or fewer neutrons than the same element as it appears on the periodic table is known as which of the following?

A) ion
B) buffer
C) isotope
D) isomer


C

Biology & Microbiology

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The pentose phosphate pathway produces

A. glyceraldehyde 3-phosphate. B. NADPH. C. CO2. D. All of the choices are correct.

Biology & Microbiology

Which of the following represents a sequence located upstream, downstream, within the coding region, or several thousand base pairs away from a gene that increases transcription?

a. promoter b. terminator c. repressor d. enhancer

Biology & Microbiology

What percentage of heart cells are part of the cardiac conduction system?

a. 1 percent b. 10 percent c. 20 percent d. 25 percent e. 100 percent

Biology & Microbiology

How many CO2 molecules are generated from each pyruvate molecule that enters the mitochondrial matrix?

A) One B) Two C) Three D) Four E) Five

Biology & Microbiology