Facilitated diffusion of a molecule into a cell would be more rapid if the ________.
A. concentration of the molecule in the cell increased
B. concentration of the molecule outside the cell increased
C. cell was isotonic
D. concentration of water in the cell decreased
Answer: B
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Heart valves close when their tissue is depolarized
Indicate whether the statement is true or false.
What is the correct order of occurrence for the steps of protein synthesis? 1. mRNA is produced in nucleus. 2. Ribosome moves along mRNA. 3. DNA uncoils for transcription. 4. Polypeptide is produced. 5. tRNA brings amino acids to ribosome. 6. mRNA moves to ribosome
A) 3, 1, 6, 2, 5, 4 B) 2, 4, 6, 1, 3, 5 C) 2, 1, 5, 4, 3, 6 D) 3, 5, 1, 6, 2, 4 E) 1, 5, 3, 4, 2, 6
Deep fascia is also known as muscular fascia; it is composed of dense irregular connective tissue
Fill in the blank with correct word.
The phase directly after the G2 phase in the cell cycle is ________.
A. anaphase B. the S phase C. prophase D. telophase E. interphase