Lec 1
In this prompt, which part describes anatomy and which describes physiology?
The microscopic structure of skeletal muscle fibers directly impacts their ability to contract and generate force
The microscopic structure of skeletal muscle fibers = anatomy (form; details of how diff. parts are organized & connected)
ability to contract and generate force = physiology (function)
a molecule is
- the smallest unit resulting from the chem. bonding of two or more atoms. can be the same or different atoms
- not separable into simpler substances, and composed of the same specific type of atom
- a mixture made up of physically combined and separable components
smallest unit resulting from the chem. bonding of two or more atoms. can be the same or different atoms
the fluid mosaic model describes
- the mixed composition & mobile nature of the components within the cell mb.
- the three main parts of the cell
- the functions of carbohydrates in a cell membrane
the mixed composition & mobile nature of the components within the cell mb.
correctly indicate the major levels of organization
- system lvl, organismal lvl, cellular lvl, tissue lvl, chemical lvl, organ lvl
chemical --> cellular --> tissue --> organ --> organ system --> organism
This particle is made up of highly reactive atoms that contain unpaired electrons in their outer shell. They trigger rxns that destroy molecules and can cancer, tissue death, aging.
- enzyme antioxidants
- radioisotopes
- free radicals
free radicals
This cellular surface extension are temporary, for-like extensions of the cell mb., contain actin filaments, and play a role in cell mvmt. and adhesion
- cilia
- flagella
- pseudopods
- microvilli
pseudopods
Which is the correct directional term for "situated further from the origin or point of attachment"
- inferior
- distal
- caudal
distal
When your body heats up your sweat glands release water onto your skin. As the sweat evaporates it absorbs and dissipates heat from your skin. This desrcibes which property of water?
- solvent properties
- high heat of vaporization
- thermostability
high heat of vaporization
tonicity relates to the relative concentration of solutes btwn. the solution surrounding the cell and the solution inside the cell, and how it affects movement of water across the cell mb. through osmosis.
In a hypertonic solution, the extracellular solute concentration is ___ than the intracellular solute concentration, causing water to flow ___ of the cell.
- less than, into
- greater than, out of
- equal, out of
greater than, out of
the transverse plane separates the body into
- top and bottom portions
- unequal left and right parts
- equal left and right parts
top and bottom (sup. & inf.) portions
Polysaccharides are all polymers of glucose. Which of the following is an example of polysaccharides?
- glycogen
- maltose
- galactose
glycogen
true or false: the secondary active transporter creates an electrochemical gradient, which is then used by the primary active transporter (like the NA/K Pump) to move one molecule down its gradient and another molecule against its gradient.
F: the primary active transporter (NA/K Pump) creates an electrochemical gradient, which is then used by the secondary active transporter to move one molecule down its gradient and another molecule against its gradient.
which of the following is NOT a component of a feedback loop
- integrator
- response
- motor program
- sensor
motor program
true or false: enzymes are biological catalysts. they decrease the rate of a chemical reaction and are then consumed or permanently changed in the process.
true or false: proteins can either be globular or fibrous, based on their shape
F, T
- the force of fluid pushing out of the capillary clefts, toward the tissues
- force of fluid pulling back into the bloodstream
the force of fluid pushing out of the capillary clefts, toward the tissues