chapter 3 anatomy, AP unit 2
Connective tissue is made of three essential components:
Cells, ground substance, protein fibers
Tendons connect bones together and withstand a lot of stress. What type of connective tissue should you expect ligaments to contain?
Dense Regular Tissue
Elastic connective tissue is a subdivision of...
Dense connective tissue
Which is not a component of a thin filament?
Myosin
Which of the following is not a difference between DNA and RNA?
NA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars
Epithelia can be classified by...
Number of cell layers
The plane that divides the body into right and left sides is the
Sagittal plane
A synapse is...
Where information is transferred from a neuron to another cell
Place the following structures in order from least to most complex organization: chromatin, nucleosome, DNA, chromosome
a. DNA, nucleosome, chromatin, chromosome
A mutation in the gene for a cyclin protein might result in which of the following?
a. a cell with additional genetic material than normal b. cancer c. a cell with less genetic material than normal d. any of the above*
Which of the following organelles produces large quantities of ATP when both glucose and oxygen are available to the cell?
a. mitochondria
Transcription and translation take place in the ________ and ________, respectively.
a. nucleus; cytoplasm
Which of the following is a function of the rough ER?
a. production of proteins
cilia
are motile cell processes
Axons...
are typically limited to one per neuron
Which of the following phases is characterized by preparation for DNA synthesis?
b. G1
The nucleus and mitochondria share which of the following features?
b. a double cell membrane
Which of the following is part of the elongation step of DNA synthesis?
b. attaching complementary nucleotides to the template strand
Because they are embedded within the membrane, ion channels are examples of ________.
b. integral proteins
Choose the answer that best completes the following analogy: Diffusion is to ________ as endocytosis is to ________.
b. osmosis; pinocytosis
The rough ER has its name due to what associated structures
b. ribosomes
What is a primary function of tumor suppressor genes?
b. stop certain cells from dividing
Which of the following is not made out of RNA?
b. the ribosome
How many "letters" of an RNA molecule, in sequence, does it take to provide the code for a single amino acid?
c. 3
Which of the following sequences on a DNA molecule would be complementary to GCTTATAT?
c. CGAATATA
Which of the following is a feature common to all three components of the cytoskeleton?
c. They are all polymers of protein subunits.
Ion pumps and phagocytosis are both examples of ________.
c. active transport
What multipotent stem cells from children sometimes banked by parents?
c. cells from the umbilical cord and from baby teeth
Which type of stem cell gives rise to red and white blood cells?
c. hematopoietic
Which of the following structures could be found within the nucleolus?
c. ribosomes
Mature cartilage cells are called.
chondrocytes
The diffusion of substances within a solution tends to move those substances ________ their ________ gradient
d. down; concentration
Arrange the following terms in order of increasing specialization: oligopotency, pleuripotency, unipotency, multipotency.
d. pleuripotency, multipotency, oligopotency, unipotency
Choose the term that best completes the following analogy: Cytoplasm is to cytosol as a swimming pool containing chlorine and flotation toys is to ________.
d. the water
What are the three embryonic cell types from which all body structures are derived?
endoderm, mesoderm, ectoderm
Which is not a type of glial cell?
endothelial cell
what is not a component of fluid connective tissue
fibroblasts
Which cartilage type is represented by the menisci of the knee joint?
fibrocartilage
The A band of a sarcomere represents the...
length of thick filament
Under the microscope, a tissue specimen shows cells located in spaces scattered in a transparent background. This is probably ________.
loose connective
Which glial cell is capable of becoming phagocytic?
microgila
Myelin sheaths in the central nervous system (CNS) are formed by...
oligodendrocytes
The main cells found in bone :
osteocytes
The control loop involved in childbirth - between stretch on the cervix and oxytocin release from the brain is a kind of:
positive feedback loop
The plasma membrane of a muscle fiber is called the...
sarcolemma
In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nucleus is located close to the basal side of the cell. The specimen is what type of epithelial tissue?
simple columnar
Which of the following is the epithelial tissue that lines the interior of blood vessels?
simple squamous
Which type of muscle fiber lacks sarcomeres?
smooth muscle fibers
The serous membrane found around the left and right lung is called:
visceral pleura