MCB 3020 EXAM 1 PRACTICE QUESTIONS AND ANSWERS

MCB 3020 EXAM 1 PRACTICE QUESTIONS AND
ANSWERS


The arguments supporting spontaneous generation were finally disproved by
A) Ullrich
B) Pasteur
C) Koch
D) Jenner - Answers - B) Pasteur

In microscopy, the term resolution
A) is only observed in stained specimens
B) refers to the ability to distinguish fine structure and detail in a specimen
C) refers to magnification when using the electron microscope
D) is the same as the total magnification of a specimen
E) is improved when longer wavelengths of light are employed - Answers - B) refers to
the ability to distinguish fine structure and detail in a specimen

what are phospholipids most likely found in a prokaryotic cell?
A) ribosome
B) the plasma membrane
C) flagella
D) organelles
E) the plasma membrane and organelles - Answers - B) the plasma membrane

which of the following organelles most closely resembles a prokaryotic cell?
A) mitochondrion
B) golgi complex
C) nucleus
D) cell wall - Answers - A) mitochondrion

by which of the following mechanisms can a cell transport a substance from a lower to a
higher concentration?
A) active transport
B) aquaporins
C) extracellular enzymes
D) simple diffusion
E) facilitated diffusion - Answers - A) active transport

which microscope is best used for observing the surfaces of intact cells and viruses?
A) scanning electron microscope
B) brightfield microscope
C) darkfield microscope
D) phase-contrast microscope