1. [5 points] Which statement is true? a. The average cell contains more DNA tha
ID: 255324 • Letter: 1
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1. [5 points] Which statement is true? a. The average cell contains more DNA than RNA b. The average cell contains more RNA than DNA c. The average cell contains approximately equal amounts of DNA and RNA d. It is impossible to determine the relative amounts of DNA and RNA. 2. [5 points] Polysaccharides are monomeric units linked together by bonds a. glycosidic b. peptide c. phosphodiester d. hydrogen 3. [5 points] Which of the following is NOT a complex macromolecule? a. glycoprotein b. phospholipid c. triglyceride d. glycolipid 4. [5 points] The prokaryotic transport system that involves a substrate-binding protein, a membrane-integrated transporter, and an ATP-hydrolyzing protein is a. diffusion b. simple transport c. group translocation d. ABC transport system 5. [5 points] Which of the following would be used by a chemoorganoheterotroph for energy? a. C2H302 b. H2 c. CO2 d. Ht [5 points] What happens when a culture is incubated above the organism's maximum temperature for growth? 6. The cell continues to grow at the normal rate. a. b. The cells grow much faster than normal because the enzymatic reactions are occurring at a much faster rate. c. The cell membranes collapse, proteins denature, and the cell usually dies d. The transport of nutrients into the cell is slow; therefore the cells grow more slowly than normalExplanation / Answer
An average cell contains more RNA than DNA.
A study indicates that a cell contains 8 times more RNA than the DNA.
Option b is the answer
Polysaccharides are monomeric units linked together by glycosidic bonds.
Option a is the answer
Phospholipids are simple macromolecules.
Option b is the answer
The prokaryotic transport system which involves a substrate binding protein, a membrane
integrated transporter and an ATP hydrolyzing protein is ABC transporter system.
Option d is the answer
Chemoorganotrophs use glucose as energy source.
Option a is the answer
6.
Optimal temperature is required for the growth of any culture.
If temperature is slightly rised, then the organism may die because of inactivation of
many proteins and many other processes get disturbed.
Option c is the answer
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