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Chapter 3: The Cell
True or False
1.) Ribosomal subunits are produced in the cytoplasm F (Ribosomal units are produced in the nucleoli and then assembled in the cytoplasm)
2.) The nuclear envelope dissolves during metaphase F (The Nuclear envelope dissolves during late prophase)
3.) Proteins are packaged and processed in the smooth endoplasmic reticulum F (Rough ER)
4.) Resting membrane potential is the difference between the charge average of the entire cell’s interior versus the charge average of the entire extracellular fluid F (The charge separation exists only at the plasma membrane)
5.) Lysosomes are responsible for neutralizing substance such as alcohol and formaldehyde F (Peroxisomes)
6.) During translation the ribosome scans for the start codon. The start codon’s base sequence is GCG F
7.) Only one protein can be produced at a time from a single mRNA strand F
8.) Introns are non coding sections of our genes not involved in the translation process T
9.) Molecules are the smallest living units in our body F (cells)
10.) The centrosome of human cells contains its own set of DNA and RNA F (Mitochondria)
11.) The mitotic spindle is composed of
12.)Translation of mRNA into a protein is performed by ___________ in the __________
13.)Which of the following can pass through the plasma membrane by means of simple diffusion
14.) An anticodon is composed of ___________
15.) What would be the sequence of the following DNA strands complimentary mRNA molecule: AGCTGCA
16.) A functional mRNA molecule made up of 210 nucleotide bases would produce a protein composed of how many amino acids?
17.) A protein is packaged and processed in the rough endoplasmic reticulum and destined for export from the cell. After leaving the Rough ER in a vesicle, where will this protein travel next
18.) A newly transcribed mRNA molecule will more closely resemble the _________ (with the exception of Uracil bases instead of Thymine bases)
19.) Which of the following cells would display a highly developed smooth endoplasmic reticulum
20.) Left unchecked, a large ingestion of sodium would make the extracellular fluid ________, causing a net flow of water ______________the cell.