Term
In eukaryotic cells, the genetic material is found in the ____________________.
A. ribosomes.
B. nucleus
C. endoplasmic reticulum
D. cytoplasm. |
|
Definition
|
|
Term
Chromosome tips, or ____, function as a cellular clock that ticks down as pieces are lost from the very ends.
A. chromatids
B. centromeres
C. telomeres
D. centrioles |
|
Definition
|
|
Term
The cytoplasm of eukaryotic cells contains:
A. water
B. dissolved nutrients
C. organelles
D. enzymes
E. all of the above |
|
Definition
|
|
Term
What is a multifactorial trait ?
A. genetic microarray
B. A single trait.
C. A trait that is influenced by more than one gene.
D. none of the above. |
|
Definition
|
|
Term
Cells having a nucleus are referred to as____________ cells and those lacking a true nucleus are called _________ cells.
A. eukaryotic, prokaryotic
B. bacteria, eukaryotic
C. viral, bacteria |
|
Definition
|
|
Term
Ribosomes are the site of synthesis of :
A. DNA
B. RNA
C. proteins
D. nucleoli
E. glucose |
|
Definition
|
|
Term
What is not characteristic of a prokaryotic cell?
A. has a plasma membrane
B. has a nuclear membrane
C. ribosomes
D. enzymes
E. DNA |
|
Definition
|
|
Term
The fundamental units of life are:
A. genes.
B. alleles.
C. chromosomes.
D. cells. |
|
Definition
|
|
Term
How does a cell rid itself of defective or malfunctioning organelles?
A. They are engulfed by plastids and stored until export from cell is possible.
B. Defective parts accumulate until the cell itself dies.
C. Lysosomes assist in the removal of defective organelles by digesting them.
D. Ribosomes play a significant role in the removal of malfunctioning parts by absorbing the parts.
E. They are exported by exocytosis. |
|
Definition
| Lysosomes assist in the removal of defective organelles by digesting them. |
|
|
Term
In metabolically active cells, you would expect to find a large number of :
A. golgi bodies
B. mitochondria
C. chloroplasts
D. vesicles
E. microtubules |
|
Definition
|
|
Term
What is the main function of a nucleus?
A. It is the site of protein synthesis.
B. Lipids are made here.
C. Site of protein folding.
D. This is where DNA is kept and RNA is transcribed. |
|
Definition
| This is where DNA is kept and RNA is transcribed. |
|
|
Term
All of the following are important functions of the cytoskeleton EXCEPT:
A. Storage of food molecules.
B. Support of organelles.
C. Movement of organelles.
D. Maintenance of shape.
E. Maintenance of organization in the cell. |
|
Definition
| Storage of food molecules. |
|
|
Term
Eukaryotic cells differ from prokaryotic cells in that only the former contain ____________________.
A. DNA.
B. ribosomes.
C. cytoplasm.
D. a nucleus. |
|
Definition
|
|
