Mastering Biology (Chapter 4)
Which of the following is a function of the rough endoplasmic reticulum?
Creating receptor proteins
The structural framework in a cell is the
Cytoskeleton
The DNA-containing region of this bacterial cell is indicated by the letter _____.
D
Which of the following are stored in the lysosomes of the cell?
Digestive enzymes
_____ are surface appendages that allow a bacterium to stick to a surface.
Fimbriae
Which of the following is part of the endomembrane system?
Golgi apparatus
The plant cell wall
Is a protective structure made of cellulose fibrils.
Which of the following organelles breaks down worn-out organelles?
Lysosomes
The cilia and flagella of eukaryotic cells are composed of _____.
Microtubules
Where in a cell is ATP made?
Mitochondria
Which plant cell organelle converts chemical fuel into packets of chemical energy that can power the cell?
Mitochondrion
Where is a bacterial cell's DNA found?
Nucleoid region
The genetic center of the eukaryotic cell is the _____.
Nucleus
Where is the genetic information of the cell stored?
Nucleus
Flagella and cilia are both composed of tubulin subunits. However, key differences can be observed. For example, _____.
Only cilia move as a coordinated team
The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
Plasma Membrane
What structure acts as a selective barrier, regulating the traffic of materials into and out of the cell?
Plasma membrane
In plants, _____ are the cell junctions that allow the free exchange of small molecules that assist in communication. In animal cells, similar cell junctions are known as _____.
Plasmodesmata ... gap junctions
What is the function of a bacterium's capsule?
Protection
In a bacterium, where are proteins synthesized?
Ribosomes
One of the ways smooth endoplasmic reticulum (ER) differs from rough endoplasmic reticulum is that rough ER is covered by
Ribosomes
Where are lipids made in the cell?
Smooth endoplasmic reticulum (ER)
Which of the following is a function of the central vacuole?
Storing compounds produced by the cell
Which of the following describes the function of the chloroplast?
The chloroplast converts light energy to chemical energy.
Which of the following correctly matches an organelle with its function? The _____ functions in _____.
Vacuole ... storage
Which of the following clues would tell you whether a cell is prokaryotic or eukaryotic?
Whether or not the cell is partitioned by internal membranes
What carries instructions for making proteins from the nucleus into the cytoplasm?
mRNA
Mitochondria are found in _____.
Both plant cells and animal cells
The structure that regulates the passage of material into and out of this bacterial cell is indicated by the letter _____.
C
What name is given to the rigid structure, found outside the plasma membrane, that surrounds and supports the bacterial cell?
Cell wall
_____ are found only in plant cells, but _____ are found in both plant and animal cells.
Central vacuoles; ribosomes
The function of the chloroplast is to _____.
Convert light energy to chemical energy
