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32 questions
A red blood cell placed in pure water would:
swell and burst
swell initially, then shrink as equilibrium is reached
shrink initially, then swell as equilibrium is reached
shrink
Which tissue forms the subcutaneous connective tissue beneath the skin?
tendons
adipose
osseous
vascular
Two types of endocytosis are:
active transport and phagocytosis
phagocytosis and pinocytosis
solute pumping and active transport
cellular secretion and solute pumping
If the sequence of nitrogenous bases in one strand of DNA is ATG-ACG, the sequence of bases on its complementary DNA strand would be:
UAC-UGC
UAG-UCG
TAC-TGC
TAG-TCG
Which cellular structure detoxifies harmful substances, such as alcohol and formaldehyde?
lysosomes
secretory vesicles
perioxisomes
ribosomes
Microvilli are apt to be found in cells that are specialized for:
insulation
absorption
protection
contraction
What type of tissue contains intercalated disks?
both cardiac and skeletal muscle tissue
smooth muscle tissue only
skeletal muscle tissue only
cardiac muscle tissue only
Which nucleic acid brings amino acids to the factory site for protein formation?
mRNA
ATP
tRNA
rRNA
The cell part consisting of a stack of flattened membranous sacs associated with swarms of tiny vesicles that are found close to the nucleus are the:
mitochondria
ribosomes
Golgi apparatus
nucleolus
The site where ribosomes are made before they move into the cytoplasm is the:
chromatin
nucleolus
nuclear membrane
chromosomes
The site of cholesterol synthesis and breakdown is the:
smooth ER
rough ER
Golgi apparatus
centrioles
Hollow tubes that cause movement of the cell:
desmosomes
tight junctions
microtubules
ribosomes
What are found in the lining of the the intestines that holds membrane proteins together?
desmosomes
tight junctions
microtubules
cilia
What cell structure is located near the nucleus and essential for making microvilli, cilia, and flagella?
smooth ER
microtubules
lysosomes
centrioles
What cell structure is made of RNA and makes ribosomes?
lysosome
nucleolus
centrioles
microtubules
What cell structure contains enzymes to break down worn out cell parts?
desmosomes
lysosomes
ribosomes
cilia
Which stage of protein synthesis involves the making of a strand of mRNA based on a DNA template?
replication
transcription
translation
respiration
During which mitiotic phase do the chromosomes move slowly apart toward opposite ends of the cell?
metaphase
telophase
prophase
anaphase
During which phase of mitosis does cytokinesis overlap with, producing two separate daughter cells?
metaphase
telophase
prophase
anaphase
During which phase of mitosis do the chromosomes cluster and align at the center of the spindle?
metaphase
telophase
prophase
anaphase
During which phase of mitosis do the centrioles separate and move toward opposite ends of the cell?
metaphase
telophase
prophase
anaphase
Which tissue type is characterized by an intracellular matrix?
connective tissue
epithelial tissue
nervous tissue
muscular tissue
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