BME 235 TEST 1 questions with
100% correct answers(100%
accuracy)
When the body is in "anatomical position, the feet are located how? -
answer Inferiorly
Maintenance of homeostasis is accomplished primarily through what? -
answer negative feedback
A contracted skeletal muscle fibers are about ____% shorter than they are
in a relaxed state. - answer 25%
If a cell reaches a final differentiated state and will not divide again, from
which of the stages does it exit the cell cycle? - answer G1
The tissue type that is said to have a "free surface" is what? - answer
Epithelial tissue
What are some connective tissues? - answer - Fibroblasts
- erythrocytes (red blood cells)
- osteoblasts
What are characteristics of epithelial tissue? - answer - mitotic cells
- an underlying basement membrane
- simple or stratified layering patterns
The primary molecular fuel source used by cells is - answer ATP
, Predict what will happen to the resting membrane potential in excitable
cells if the extracellular fluid concentration of K+ decreases from its
normal value of 5mM/L to 2.5 mM/L - answer The membrane potential will
become more negative
The 2 positively charged ions that are primarily responsible for the
membrane potential are...? - answer sodium and potassium
electrical potentials exist across the membranes of - answer virtually all
cells of the body
Transmission of an action potential down an axon is...? - answer Faster in
myelinated than in unmyelinated axons
When a skeletal muscle contracts its __________ get shorter. - answer I
bands
What is the neurotransmitter released by spinal motor neurons at the
neuromuscular junction? - answer acetylcholine
Red and white blood cells are made in...? - answer Red bone marrow in
spongy bone.
In a relaxed skeletal muscle fiber, most of its calcium ions are found in -
answer the sarcoplasmic reticulum
What are some special connective tissues? - answer Cartilage, blood, and
bone
Longest bone in the body? - answer femur
Characteristics of connective tissue - answer Prominent basement
membrane.
100% correct answers(100%
accuracy)
When the body is in "anatomical position, the feet are located how? -
answer Inferiorly
Maintenance of homeostasis is accomplished primarily through what? -
answer negative feedback
A contracted skeletal muscle fibers are about ____% shorter than they are
in a relaxed state. - answer 25%
If a cell reaches a final differentiated state and will not divide again, from
which of the stages does it exit the cell cycle? - answer G1
The tissue type that is said to have a "free surface" is what? - answer
Epithelial tissue
What are some connective tissues? - answer - Fibroblasts
- erythrocytes (red blood cells)
- osteoblasts
What are characteristics of epithelial tissue? - answer - mitotic cells
- an underlying basement membrane
- simple or stratified layering patterns
The primary molecular fuel source used by cells is - answer ATP
, Predict what will happen to the resting membrane potential in excitable
cells if the extracellular fluid concentration of K+ decreases from its
normal value of 5mM/L to 2.5 mM/L - answer The membrane potential will
become more negative
The 2 positively charged ions that are primarily responsible for the
membrane potential are...? - answer sodium and potassium
electrical potentials exist across the membranes of - answer virtually all
cells of the body
Transmission of an action potential down an axon is...? - answer Faster in
myelinated than in unmyelinated axons
When a skeletal muscle contracts its __________ get shorter. - answer I
bands
What is the neurotransmitter released by spinal motor neurons at the
neuromuscular junction? - answer acetylcholine
Red and white blood cells are made in...? - answer Red bone marrow in
spongy bone.
In a relaxed skeletal muscle fiber, most of its calcium ions are found in -
answer the sarcoplasmic reticulum
What are some special connective tissues? - answer Cartilage, blood, and
bone
Longest bone in the body? - answer femur
Characteristics of connective tissue - answer Prominent basement
membrane.
