Anatomy is the study of ______ & physiology is the study of ______.
Structure, function
100
What are the smallest stable chemical units of matter?
Atoms
100
Most of the energy a cell needs to live is generated by the ________.
Mitochondria
100
The smooth ER (SER) has a variety of functions that center around the synthesis of ________.
lipids and carbohydrates
100
Ions that have a positive charge are called
cations
200
What is a stimulus outside normal limits triggers a response that opposes or negates the stimulus, the mechanism is called ________.
Negative feedback
200
The protons in an atom are found only ________.
The nucleus
200
Which organelle absorbs and breaks down fatty acids and other organic compounds?
Peroxisome
200
How does facilitated diffusion differ from ordinary diffusion?
Carrier proteins are involved.
200
How many electrons would carbon have in its outermost shell? (Hint: Carbon has an atomic number of 6.)
4
300
The ventral body cavity is divided by a flat muscular sheet called the ________.
Diaphragm
300
What are the three subatomic particles that are stable constituents of atomic structure?
protons, neutrons, electrons
300
If the DNA triplet is TAG, the corresponding codon on the mRNA strand will be ________.
AUC
300
Red blood cells are hemolyzed (or lysed) when the cells are placed in contact with ________.
a hypotonic solution
300
Enzymes act by
lower the energy of activation of a chemical reaction
400
If the temperature of the body climbs above 99ºF, negative feedback is triggered by ________.
Increased heat loss through enhanced blood flow to the skin and sweating
400
The unequal sharing of electrons in a molecule of water is an example of ________.
A polar covalent bonding
400
The cytoskeleton gives the cell strength and rigidity and anchors the position of major organelles. What are the primary components of the cytoskeleton?
Microtubules
400
Water-soluble ions and molecules CANNOT enter certain regions of the cell membrane because of ________.
the presence of hydrophobic tails
400
What is the primary function of carbohydrates such as monosaccharides and disaccharides?
Serving as an important energy source
500
Histology is the study of ________.
Tissues
500
From the following choices, select the one that diagrams a typical decomposition reaction.
Choice 1.) A + B = AB Choice 2.) AB = A + B
AB = A + B
500
Ions and other small water-soluble materials cross the plasma membrane only by passing through ________.
channels
500
Why are lysosomes sometimes called "cellular suicide packets"?
The breakdown of lysosomal membranes can destroy a cell.
500
A _____ is the bond between the carboxylic acid group of one amino acid and the amino group of another.