Download Bio102 Problems

Bio102 Problems
Cells and Organelles
1. In the blank provided, write the name of one cell structure or region that is accurately described by the
statement.
a. Contains the thylakoid membrane
b. Site of amino acid polymerization
c. Prevents enzymes from leaving the cell
Provides shape and structure to animal
d.
cells
e. The fluid outside of all organelles
f.
Contains DNA and ribosomes
____Chloroplast__________________
____Ribosome or Rough ER__________
____Cell Membrane_________________
____Cytoskeleton__________________
____Cytosol_______________________
____Mitochondria or Chloroplast___
2. The Cell Theory states that
A. as an organism gets larger, its surface area-to-volume ratio decreases.
B. energy can neither be created nor destroyed.
C. cells can arise by spontaneous generation if the G value is favorable.
D. prokaryotic cells never contain membrane-bound organelles.
E. all cells come from pre-existing cells.
3. Which one of the following is NEVER found in a prokaryotic cell?
A. DNA
B. Ribosome
C. Cell Membrane
D. Mitochondria
E. Flagella
4. Which structure is “semi-autonomous”?
A. Ribosome
B. Smooth endoplasmic reticulum
C. Nucleus
D. Chloroplast
E. Cell wall
5. The Endosymbiont Theory is supported by all of the following observations EXCEPT
A. mitochondria have their own DNA.
B. mitochondria have a cell wall, like prokaryotic cells.
C. mitochondria are approximately the same size as a prokaryotic cell.
D. mitochondria have two membranes.
6. Which one of the following limits the size of a prokaryotic cell?
A.
B.
C.
D.
E.
The lack of mitochondria
The surface area-to-volume ratio
The First Law of Thermodynamics
The Second Law of Thermodynamics
The Cell Theory
7. Five statements are shown in the left column below. For each statement, indicate which cell structure
or structures it accurately describes. There may be more than one correct answer for each blank: list all
that apply.
A. Cell Membrane
B. Cell Wall
Contains more than one
_C F ___ membrane
___J____
Site of triglyceride synthesis
___BH___
Has no membrane
___B____
Provides rigid support for the cell
___ HI ___ Site of peptide bond synthesis
___ABH__ May be found in a prokaryote
C. Chloroplast
D. Golgi Body
E. Lysosome
F. Mitochondria
G. Nucleus
H. Ribosome
I. Rough Endoplasmic Reticulum
J.
8. What is the function of a cell wall?
A. Structural support for the cell
B. Allows specialization of a small portion of the cytoplasm
C. Prevents the entry of toxic molecules into the cell
D. Increases the surface area-to-volume ratio
E. Provides a semi-permeable barrier
9. The shape of an animal cell is determined primarily by it’s
A. proteoglycans.
B. cell wall.
C. cell membrane.
D. cytoskeleton.
E. neighboring cells.
10. The diameter of a eukaryotic cell would typically be around
A. 20 nm
B. 200 nm
C. 2 m
D. 20 m
E. 200 m
Smooth Endoplasmic
Reticulum