Questions and CORRECT Answers
pH is defined - CORRECT ANSWER - the concentration (amount) of hydrogen ions (H*) in a
solution
Term that describes a solution with a solute concentration equal to that inside a cell: - CORRECT
ANSWER - isotonic
Characteristic of life that involves being able to react to stimuli: - CORRECT ANSWER -
responsiveness
Characteristic shared by simple diffusion and facilitated diffusion: - CORRECT ANSWER -
Both involve the movement of substances from a region of higher concentration to lower
concentration
Phase of mitosis when the chromosomes line up in the middle of the cell: - CORRECT
ANSWER - metaphase
Body region known as the front (bend) of the elbow: - CORRECT ANSWER - antecubital
Body region known as the back (bend) of the knee: - CORRECT ANSWER - popliteal
Chemical bond that involves the electrostatic attraction between charged atoms after the
complete transfer of electrons from one atom to another: - CORRECT ANSWER - ionic
System that mainly acts as a physical barrier to the external environment, and includes structures
such as skin, hair, and nails: - CORRECT ANSWER - integumentary
,Ribosomes are best described as: - CORRECT ANSWER - A small organelle with enzyme
function that joins amino acids together to form proteins
System that functions to move body parts, protect against trauma, and generate most of our body
heat ? - CORRECT ANSWER - muscular
Malignant cancer cells - CORRECT ANSWER - May spread all through the body
Type of transport mechanism that requires the direct use of ATP ? - CORRECT ANSWER -
Active
If a persons blood pH level drops between 7.0 to 7.3, this can be defined as - CORRECT
ANSWER - Acidosis
This definition means "programmed cell death and is the part of a normal cell cycle"? -
CORRECT ANSWER - Apoptosis
Plane of section that divides the body into superior and inferior portions: - CORRECT
ANSWER - transverse
A solution that has a very low value on the pH scale tends to be a very strong - CORRECT
ANSWER - Acid
Body region known as the armpit: - CORRECT ANSWER - axillary
The normal pH range for human blood is between______on a pH scale? - CORRECT
ANSWER - 7.35 to 7.45
Atomic number is determined by the number of: - CORRECT ANSWER - protons
, Acids can be defined as a substance that releases this substance into solution ? - CORRECT
ANSWER - H+
System mainly responsible for producing body movement and most of our body heat: -
CORRECT ANSWER - muscular
When ATP is used for energy, it is broken down into inorganic phosphate and ? - CORRECT
ANSWER - ADP
Transport mechanism that releases the contents of a vesicle to the outside of a cell: - CORRECT
ANSWER - exocytosis
Positive feedback triggers an automatic response that - CORRECT ANSWER - Pushes the
change further away from normal values
Plane of section that divides the body into anterior and posterior portions: - CORRECT
ANSWER - frontal
"Powerhouse" of the cell that generates a large amount of ATP in the presence of oxygen: -
CORRECT ANSWER - mitochondria
Negative feedback triggers an automatic response that - CORRECT ANSWER - Negative
variations from normal limits
What organelle packages cell products for secretion? - CORRECT ANSWER - Golgi
apparatus
Phase of mitosis when the nuclear envelope starts to disappear and chromatin condenses into
highly visible chromosomes: - CORRECT ANSWER - prophase
Building blocks (monomers) of proteins: - CORRECT ANSWER - amino acids