Chapter 3: the Cell Quiz ?'s
If a cell has 18 chromosomes and undergoes mitosis, how many chromosomes would each daughter cell have?
18
Cell division occurs during __________.
M phase
A cell is placed into a 3% dextrose solution. At that concentration, the solution is isotonic to the cell. If the concentration of dextrose in the solution is increased to 5%, the cell is now in __________.
a hypertonic solution
During which phase of mitosis are sister chromatids separated when the mitotic spindle fibers shorten?
anaphase
Programmed cell death is called __________.
apoptosis
Tightly coiled DNA molecules present during cell division are known as:
chromosomes
What process divides the cytosol, organelles, and proteins?
cytokinesis
Which of the following would NOT be a component of the plasma membrane?
cytoskeleton
Two types of active transport via vesicles are __________.
endocytosis and exocytosis
What is NOT one of the three main parts of a cell?
extracellular fluid
Sodium ions are moving with their concentration gradient with the use of a protein channel across a plasma membrane. Determine the type of membrane transport used to transport these sodium ions.
facilitated diffusion
Cytosol is also known as __________.
intracellular fluid (ICF)
What organelle degrades old, worn-out organelles and cell components?
lysosome
Which of the following is a function of a plasma membrane protein?
molecular transport through the membrane
Most of a cell's DNA is located in its __________.
nucleus
Molecular machines that perform specific functions for the cell are:
organelles
During which phase of the M phase of the cell cycle does the mitotic spindle form?
prophase
Active transport processes __________.
require cells to expend energy (ATP)
Carbon dioxide is a small molecule that moves through the phospholipid bilayer with its concentration gradient by __________.
simple diffusion
Microtubules are composed of protein subunits known as __________.
tubulin
Microtubules are composed of protein subunits known as:
tubulin