D311
10/8/25, 8:24 AM Microbiology Exam 1 review - results
Microbiology Exam 1 review 2025/2026
75%
1. What is the basis of the RNA World
Hypothesis?
RNA was the primary genetic storage molecule and performer of chem
RNA is highly stable and was the first genetic storage molecule.
RNA has a rigid structure, able to withstand the harsh conditions of early
2. Diffusion is the movement of molecules:
from and area of high concentration to an area of lower concentration.
up a concentration gradient
from an area of lower concentration toward an area of high concentration
away from water
3. Which statement best describes the characteristics of the fluid mosaic model of
A rigid structure composed solely of phospholipids.
A dynamic arrangement of phospholipids and proteins that allows for m
A static layer that does not allow for any protein movement.
A model that only applies to prokaryotic cells.
4. The Endosymbiotic Hypothesis proposes a mechanism by which ___________ ar
multicellular life ;
prokaryotic life;
eukaryotic cells;
animal cells
5. Which of the following statements accurately describes a fundamental distinctio
and Eukaryotes?
, D311
10/8/25, 8:24 AM Microbiology Exam 1 review - results
Gram-negative bacteria lack the cell wall antigen that reacts with Gram st
10/8/25, 8:24 AM Microbiology Exam 1 review - results
Microbiology Exam 1 review 2025/2026
75%
1. What is the basis of the RNA World
Hypothesis?
RNA was the primary genetic storage molecule and performer of chem
RNA is highly stable and was the first genetic storage molecule.
RNA has a rigid structure, able to withstand the harsh conditions of early
2. Diffusion is the movement of molecules:
from and area of high concentration to an area of lower concentration.
up a concentration gradient
from an area of lower concentration toward an area of high concentration
away from water
3. Which statement best describes the characteristics of the fluid mosaic model of
A rigid structure composed solely of phospholipids.
A dynamic arrangement of phospholipids and proteins that allows for m
A static layer that does not allow for any protein movement.
A model that only applies to prokaryotic cells.
4. The Endosymbiotic Hypothesis proposes a mechanism by which ___________ ar
multicellular life ;
prokaryotic life;
eukaryotic cells;
animal cells
5. Which of the following statements accurately describes a fundamental distinctio
and Eukaryotes?
, D311
10/8/25, 8:24 AM Microbiology Exam 1 review - results
Gram-negative bacteria lack the cell wall antigen that reacts with Gram st
