BSC 2085 Questions With Expert
Guided Solutions 100% Pass
The Contraction mechanism in skeletal and smooth muscle fibers involves -
CORRECT ANSWER-Thin and thick filaments sliding past each other and
partially overlapping
Rigor mortis (=stiffness in a dead body) occurs because - CORRECT ANSWER-
No ATP is available to release attached actin and myosin molecules
Normal bone formation and growth are dependent on the adequate intake of -
CORRECT ANSWER-Calcium, Phosphate, and vitamin D
In a relaxed smooth muscle fiber the actin active sites are ____ and the myosin
heads are ____ . - CORRECT ANSWER-Free ; non-phosphorylated
Creatine phosphate functions in the skeletal muscle cell by - CORRECT
ANSWER-Storing energy that will be transferred directly to ADP to resynthesize
ATP
The mechanism of contraction in smooth muscle is different from skeletal muscle,
among other things, in that ____ . - CORRECT ANSWER-The site of the calcium
binding differs
, Hypothetically, if a striated muscle were stretched before contraction to the point
where thick and thin filaments no longer overlapped, __ . - CORRECT
ANSWER-No muscle tension could be generated
The cross bridge cycle in skeletal muscle fibers triggered by the increase in the
cytosol of ___ , following from the __ . - CORRECT ANSWER-Ca (cations),
Terminal cisternae
Yellow bone marrow contains a large percentage of - CORRECT ANSWER-Fat
(= adipose tissue)
The canal that runs through the core of each osteon (the central canal) is the site of
___. - CORRECT ANSWER-Blood vessels and nerve fibers
In addition to protection (physical and chemical barrier), the skin serves other
functions. Which of the following is another vital function of the skin? -
CORRECT ANSWER-It converts modified epidermal cholesterol to a vitamin D
precursor important to calcium absorption.
Which of the following is true about smooth muscle contraction? - CORRECT
ANSWER-In smooth muscle the calcium- calmodulin complex activates an
enzyme that phosphorylates the head of the myosin.
The relaxation of skeletal muscle fibers depends on the activity of the ___, which
decreases the contraction of ____ in the cytosol. - CORRECT ANSWER-Ca
pumps; Ca (cations)
COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED.
Guided Solutions 100% Pass
The Contraction mechanism in skeletal and smooth muscle fibers involves -
CORRECT ANSWER-Thin and thick filaments sliding past each other and
partially overlapping
Rigor mortis (=stiffness in a dead body) occurs because - CORRECT ANSWER-
No ATP is available to release attached actin and myosin molecules
Normal bone formation and growth are dependent on the adequate intake of -
CORRECT ANSWER-Calcium, Phosphate, and vitamin D
In a relaxed smooth muscle fiber the actin active sites are ____ and the myosin
heads are ____ . - CORRECT ANSWER-Free ; non-phosphorylated
Creatine phosphate functions in the skeletal muscle cell by - CORRECT
ANSWER-Storing energy that will be transferred directly to ADP to resynthesize
ATP
The mechanism of contraction in smooth muscle is different from skeletal muscle,
among other things, in that ____ . - CORRECT ANSWER-The site of the calcium
binding differs
, Hypothetically, if a striated muscle were stretched before contraction to the point
where thick and thin filaments no longer overlapped, __ . - CORRECT
ANSWER-No muscle tension could be generated
The cross bridge cycle in skeletal muscle fibers triggered by the increase in the
cytosol of ___ , following from the __ . - CORRECT ANSWER-Ca (cations),
Terminal cisternae
Yellow bone marrow contains a large percentage of - CORRECT ANSWER-Fat
(= adipose tissue)
The canal that runs through the core of each osteon (the central canal) is the site of
___. - CORRECT ANSWER-Blood vessels and nerve fibers
In addition to protection (physical and chemical barrier), the skin serves other
functions. Which of the following is another vital function of the skin? -
CORRECT ANSWER-It converts modified epidermal cholesterol to a vitamin D
precursor important to calcium absorption.
Which of the following is true about smooth muscle contraction? - CORRECT
ANSWER-In smooth muscle the calcium- calmodulin complex activates an
enzyme that phosphorylates the head of the myosin.
The relaxation of skeletal muscle fibers depends on the activity of the ___, which
decreases the contraction of ____ in the cytosol. - CORRECT ANSWER-Ca
pumps; Ca (cations)
COPYRIGHT ©️ 2025, ALL RIGHTS RESERVED.
