Which chemical carries the DNA's instructions for synthesizing a particular protein from the nucleus to the cytoplasm?

A) transfer RNA
B) messenger RNA
C) RNA transcriptase
D) ribosomal RNA


B

Biology & Microbiology

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The photosynthetic electron transport causes the accumulation of protons in which part of the chloroplast?  

A.  matrix B.  stroma C.  outer membrane D.  internal thylakoid space

Biology & Microbiology

Which hormone requires iodine for its proper function and in excess will increase metabolic rate?

A. cortisol B. growth hormone C. insulin D. thyroid hormone E. atrial natriuretic peptide

Biology & Microbiology

Sodium and potassium ions cross the neuron's membrane to cause which of the following processes?

A) action potential B) passive transport C) refractory period D) transmission

Biology & Microbiology

During electron transport, excess amount of protons is transported into the cell

a. true b. false

Biology & Microbiology