Ch. 3 Flashcards
A cell that produces many proteins for secretion would have large numbers of:
a. rough ER and Golgi apparatus.
b. lysosomes and Golgi apparatus.
c. Golgi apparatus and microvilli.
d. ribosomes and centrioles.
e. mitochondria and cilia.
rough ER and Golgi apparatus.
A DNA base sequence is ATGCCG. The sequence of bases in a strand of mRNA transcribed from this sequence of bases in DNA would be:
a. T A C G G C.
b. U T C G G U.
c. U A C G G C.
d. A U G C C G.
e. T A G G G G
U A C G G C.
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution “B”:
a. hypotonic solution
b. hypertonic solution
c. isotonic solution
d. hemolyzed
e. crenated
crenated (shrink)
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is the condition of the RBC in solution “C”?
a. hypotonic solution
b. hypertonic solution
c. isotonic solution
d. lyzed
e. crenated
lyzed
Cells undergo a series of changes during their life-span which is known as
a. cell division
b. DNA inforation
c. cell cycle
d. growth phase
cell cycle
Answer these questions about chromosome structure. What does “A” represent?
a. chromatid
b. proteins
c. chromosomes
d. centromere
e. chromatin
chromosome
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution “A” relative to the RBC?
a. hypotonic solution
b. hypertonic solution
c. isotonic solution
d. hemolyzed
e. crenated
isotonic solution
Answer these questions about chromosome structure. What does “C” repressent?
a. chromatid
b. proteins
c. chromosomes
d. centromere
e. chromatin
centromere
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of “D”?
directs cellular activities, contains DNA
Active transport…
requires ATP
Endoplasmic reticulum with ribosomes attached to it is called
rough ER
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of “B”?
major site of ATP synthesis when oxygen is available
Chromosome pairs are called
homologous pairs
Nuecleoli
produce ribosomal subunits
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of “E”?
contains digestive enzymes
Messenger RNA
is synthesized when a portion of a DNA molecule is transcribed
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic. What is solution “C” relative to the RBC?
hypotonic solution
A protein that is converted to an active enzyme is
proenzyme
DNA synthesis occurs during
the S phase of interphase
A cell that breaks down and recycles proteins would have a large numbers
proteosomes