CSCC BIO-1101: UNIT 1 REVIEW WITH
QUESTIONS AND ANSWERS MEANT
FOR REVISION 2025 UPDATE
The study of the functions of the body systems is - ANS physiology
The universal reference position of the body is - ANS anatomical position
The knee is proximal to the thigh - ANS False
Which term would correctly describe the location of the heart in relation to the spine? - ANS
anterior
The liver is a _____ organ. - ANS unilateral
The stomach resides in this cavity. - ANS abdominal
The brain is located in the ventral, cranial cavity. - ANS false
The fluid causing increased interstitial fluid (edema) due to injured blood vessels (hemorrhage): -
ANS plasma
You are sweating on a warm day. Identify the fluid lost as sweat. - ANS extracellular fluid
Even if you haven't eaten for a while, your blood glucose levels are maintained at a relatively
stable level by homeostatic mechanisms. - ANS True
Which system(s) form the communication or "feedback" loops to maintain homeostasis? - ANS
Both;
endocrine system
nervous system
As we maintain homeostasis, we use these types of cells to send information to the brain and
spinal cord about our environment. - ANS sensory nerve cells
Most homeostatic mechanisms work by using positive feedback. - ANS false
You were lying down for awhile and then rise quickly, causing you blood pressure to drop.
However, you don't faint because homeostatic mechanisms work to raise the blood pressure. -
ANS this is an example of a negative feedback mechanism at work
If blood glucose is low, what must the body do to return to homeostasis? - ANS release a
hormone (glucagon) which acts to raise blood glucose levels
, If the body temperature is low, what must the body do to return to homeostasis? - ANS shiver
and vasoconstrict blood vessels to the skin, which act to raise body temperature
A person just ate a bag of salty chips causing blood sodium (Na+) levels to rise. What must the
body do to return to homeostasis? - ANS release a hormone (ANF) which causes the kidneys to
excrete sodium
Identify the forms of passive transport. - ANS simple diffusion
Which of the following is/are true of passive transport? - ANS Both;
substances move down a concentration gradient
no energy is required for transport
You can increase the speed of sugar passively diffusing in ice tea by: - ANS using smaller loose
sugar packet
stirring
heating
Identify small, lipid soluble molecules passively diffusing across the cell membrane. - ANS All;
oxygen
steroids
alcohol
carbon dioxide
Water moves from where there is more water to where there is less water. - ANS true
Channels for the movement of water across the cell membrane are known as - ANS aquaporins
Is there a greater solute concentration inside the cell than there is outside, the water will move -
ANS into the cell
Facilitated active transport requires the use of both ATP and carrier proteins in the cell
membrane. - ANS true
Large of solid material is moved into cells, as when immune cells engulf bacteria, in the process
known as: - ANS phagocytosis
The study of tissues is histology. - ANS true
Every structure in the human body can be categorized into one of these types in the body. - ANS
epithelium
connective
muscle
nervous
QUESTIONS AND ANSWERS MEANT
FOR REVISION 2025 UPDATE
The study of the functions of the body systems is - ANS physiology
The universal reference position of the body is - ANS anatomical position
The knee is proximal to the thigh - ANS False
Which term would correctly describe the location of the heart in relation to the spine? - ANS
anterior
The liver is a _____ organ. - ANS unilateral
The stomach resides in this cavity. - ANS abdominal
The brain is located in the ventral, cranial cavity. - ANS false
The fluid causing increased interstitial fluid (edema) due to injured blood vessels (hemorrhage): -
ANS plasma
You are sweating on a warm day. Identify the fluid lost as sweat. - ANS extracellular fluid
Even if you haven't eaten for a while, your blood glucose levels are maintained at a relatively
stable level by homeostatic mechanisms. - ANS True
Which system(s) form the communication or "feedback" loops to maintain homeostasis? - ANS
Both;
endocrine system
nervous system
As we maintain homeostasis, we use these types of cells to send information to the brain and
spinal cord about our environment. - ANS sensory nerve cells
Most homeostatic mechanisms work by using positive feedback. - ANS false
You were lying down for awhile and then rise quickly, causing you blood pressure to drop.
However, you don't faint because homeostatic mechanisms work to raise the blood pressure. -
ANS this is an example of a negative feedback mechanism at work
If blood glucose is low, what must the body do to return to homeostasis? - ANS release a
hormone (glucagon) which acts to raise blood glucose levels
, If the body temperature is low, what must the body do to return to homeostasis? - ANS shiver
and vasoconstrict blood vessels to the skin, which act to raise body temperature
A person just ate a bag of salty chips causing blood sodium (Na+) levels to rise. What must the
body do to return to homeostasis? - ANS release a hormone (ANF) which causes the kidneys to
excrete sodium
Identify the forms of passive transport. - ANS simple diffusion
Which of the following is/are true of passive transport? - ANS Both;
substances move down a concentration gradient
no energy is required for transport
You can increase the speed of sugar passively diffusing in ice tea by: - ANS using smaller loose
sugar packet
stirring
heating
Identify small, lipid soluble molecules passively diffusing across the cell membrane. - ANS All;
oxygen
steroids
alcohol
carbon dioxide
Water moves from where there is more water to where there is less water. - ANS true
Channels for the movement of water across the cell membrane are known as - ANS aquaporins
Is there a greater solute concentration inside the cell than there is outside, the water will move -
ANS into the cell
Facilitated active transport requires the use of both ATP and carrier proteins in the cell
membrane. - ANS true
Large of solid material is moved into cells, as when immune cells engulf bacteria, in the process
known as: - ANS phagocytosis
The study of tissues is histology. - ANS true
Every structure in the human body can be categorized into one of these types in the body. - ANS
epithelium
connective
muscle
nervous
