BI 121 Forbes Final Exam Questions
with 100% Correct Answers | Latest
Version 2024 | Verified
What are the 4 biological macromolecules and of what are they composed? (Unit #1) - ✔✔Proteins,
Nucleic acids, Lipids, Carbohydrates
What is homeostasis and what is a homeostatic set point or range? (Unit #1) - ✔✔is a dynamic state of
equilibrium in which optimal parameters of the body are maintained.
set point or range-the point or range of a parameter at which the body functions best
What are the 11 body systems and what is their primary functions? Which organs and glands make up
each system? (Unit #1) - ✔✔
Integumentary
Skeletal
Muscular
Cardiovascular
Lymphatic
Digestive
Respiratory
Urinary
Reproductive
Nervous
Endocrine
What is a passive vs. and active system of membrane transport? (Unit #1) - ✔✔Active: Active Transport
uses ATP to pump molecules AGAINST/UP the concentration gradient. Transport occurs from a low
concentration of solute to high concentration of solute. Requires cellular energy.
, Passive: Movement of molecules DOWN the concentration gradient. It goes from high to low
concentration, in order to maintain equilibrium in the cells. Does not require cellular energy.
What is the difference between diffusion and osmosis? What is the difference between passive and
facilitated diffusion? (Unit #1) - ✔✔Diffusion: Movement of a solute from an area of greater solute
concentration to an area of lesser solute concentration across/through a membrane
Osmosis: Movement of a water molecules from an area of greater water molecule concentration to an
area of lesser water molecule concentration across/through a membrane.
What is a permeable and a semi-permeable membrane? (Unit #1) - ✔✔Semi-permeable membrane
describes a membrane that allows some particles to pass through, where as the selectively permeable
membrane "chooses" what passes through...
What is an isotonic, hypertonic, and hypotonic condition? (Unit #1) - ✔✔Isotonic: solute concentration
equal on both sides of membrane
Hypotonic: solute concentration lower in environment
Hypertonic: solute concentration higher in environment
Be able to work diffusion problems similar to your homework? (Unit #1) - ✔✔
What is the difference between a gene, DNA and a chromosome? (Unit #2) - ✔✔DNA: Deoxyribonucleic
acid. A double-helix structure composed of nucleic acids which acts as the instructions or template for
the manufacture of proteins.
Chromosome: A DNA molecule and the proteins associated with it.
Genes: A specific region of a DNA strand (or chromosome) that influences a certain inheritable trait(s).
What are the stages of mitosis and what is occurring in each stage? What is happening in interphase?
(Unit #2) - ✔✔Stages:
Prophase
Metaphase
Anaphase
with 100% Correct Answers | Latest
Version 2024 | Verified
What are the 4 biological macromolecules and of what are they composed? (Unit #1) - ✔✔Proteins,
Nucleic acids, Lipids, Carbohydrates
What is homeostasis and what is a homeostatic set point or range? (Unit #1) - ✔✔is a dynamic state of
equilibrium in which optimal parameters of the body are maintained.
set point or range-the point or range of a parameter at which the body functions best
What are the 11 body systems and what is their primary functions? Which organs and glands make up
each system? (Unit #1) - ✔✔
Integumentary
Skeletal
Muscular
Cardiovascular
Lymphatic
Digestive
Respiratory
Urinary
Reproductive
Nervous
Endocrine
What is a passive vs. and active system of membrane transport? (Unit #1) - ✔✔Active: Active Transport
uses ATP to pump molecules AGAINST/UP the concentration gradient. Transport occurs from a low
concentration of solute to high concentration of solute. Requires cellular energy.
, Passive: Movement of molecules DOWN the concentration gradient. It goes from high to low
concentration, in order to maintain equilibrium in the cells. Does not require cellular energy.
What is the difference between diffusion and osmosis? What is the difference between passive and
facilitated diffusion? (Unit #1) - ✔✔Diffusion: Movement of a solute from an area of greater solute
concentration to an area of lesser solute concentration across/through a membrane
Osmosis: Movement of a water molecules from an area of greater water molecule concentration to an
area of lesser water molecule concentration across/through a membrane.
What is a permeable and a semi-permeable membrane? (Unit #1) - ✔✔Semi-permeable membrane
describes a membrane that allows some particles to pass through, where as the selectively permeable
membrane "chooses" what passes through...
What is an isotonic, hypertonic, and hypotonic condition? (Unit #1) - ✔✔Isotonic: solute concentration
equal on both sides of membrane
Hypotonic: solute concentration lower in environment
Hypertonic: solute concentration higher in environment
Be able to work diffusion problems similar to your homework? (Unit #1) - ✔✔
What is the difference between a gene, DNA and a chromosome? (Unit #2) - ✔✔DNA: Deoxyribonucleic
acid. A double-helix structure composed of nucleic acids which acts as the instructions or template for
the manufacture of proteins.
Chromosome: A DNA molecule and the proteins associated with it.
Genes: A specific region of a DNA strand (or chromosome) that influences a certain inheritable trait(s).
What are the stages of mitosis and what is occurring in each stage? What is happening in interphase?
(Unit #2) - ✔✔Stages:
Prophase
Metaphase
Anaphase
