BSC 1005 EXAM 2 with verified answers
already passed
What molecule creates the plasma membrane in cell? - correct answer ✔✔phospholipid bilayer
what is the function of the plasma membrane? - correct answer ✔✔1) separates cell from
external environment
2) regulates transport of molecules
Tonicity - correct answer ✔✔ability of a solute to lose/gain water based on conc. of solute in a
solution
Isotonic - correct answer ✔✔same conc. as cell, no net change
hypotonic - correct answer ✔✔less solute conc. than cell, cell gains water
hypertonic - correct answer ✔✔more solute conc. than cell, cell loses water
What is the cell theory? - correct answer ✔✔living things are made up of cells and cells
reproduce from other cells.
What characteristics are common to all cells? - correct answer ✔✔plasma membrane
chromosomes with DNA
ribosomes to make protein
cytoplasm
, Function of the nucleus? - correct answer ✔✔controls center of the cell, contains DNA
Mitochondria - correct answer ✔✔energy producer for eukaryotic cells
Chloroplasts - correct answer ✔✔energy producer for plants, algae & phytoplankton
Passive transport? - correct answer ✔✔requires no energy, particles move down a conc.
gradient
Types of Passive transport? - correct answer ✔✔osmosis, diffusion, facilitated diffusion
Osmosis - correct answer ✔✔specialized diffusion of water across a selectively permeable
membrane
active transport - correct answer ✔✔requires energy, movement against a conc gradient
Prokaryotes - correct answer ✔✔single celled organism that lacks a membrane bound nucleus.
has surface projections, forms capsules for attachment, has cell wall
Eukaryotes - correct answer ✔✔complex organism with a nucleus, only plant type has cell wall,
no surface projection & has organelles enclosed by a membrane.
what is ATP - correct answer ✔✔a molecule used by cells to fuel work
photosynthesis - correct answer ✔✔Light reaction(photo), Dark reaction/calvin cycle(synthesis)
organelle that does photosynthesis? - correct answer ✔✔chloroplast(endogenic)
already passed
What molecule creates the plasma membrane in cell? - correct answer ✔✔phospholipid bilayer
what is the function of the plasma membrane? - correct answer ✔✔1) separates cell from
external environment
2) regulates transport of molecules
Tonicity - correct answer ✔✔ability of a solute to lose/gain water based on conc. of solute in a
solution
Isotonic - correct answer ✔✔same conc. as cell, no net change
hypotonic - correct answer ✔✔less solute conc. than cell, cell gains water
hypertonic - correct answer ✔✔more solute conc. than cell, cell loses water
What is the cell theory? - correct answer ✔✔living things are made up of cells and cells
reproduce from other cells.
What characteristics are common to all cells? - correct answer ✔✔plasma membrane
chromosomes with DNA
ribosomes to make protein
cytoplasm
, Function of the nucleus? - correct answer ✔✔controls center of the cell, contains DNA
Mitochondria - correct answer ✔✔energy producer for eukaryotic cells
Chloroplasts - correct answer ✔✔energy producer for plants, algae & phytoplankton
Passive transport? - correct answer ✔✔requires no energy, particles move down a conc.
gradient
Types of Passive transport? - correct answer ✔✔osmosis, diffusion, facilitated diffusion
Osmosis - correct answer ✔✔specialized diffusion of water across a selectively permeable
membrane
active transport - correct answer ✔✔requires energy, movement against a conc gradient
Prokaryotes - correct answer ✔✔single celled organism that lacks a membrane bound nucleus.
has surface projections, forms capsules for attachment, has cell wall
Eukaryotes - correct answer ✔✔complex organism with a nucleus, only plant type has cell wall,
no surface projection & has organelles enclosed by a membrane.
what is ATP - correct answer ✔✔a molecule used by cells to fuel work
photosynthesis - correct answer ✔✔Light reaction(photo), Dark reaction/calvin cycle(synthesis)
organelle that does photosynthesis? - correct answer ✔✔chloroplast(endogenic)
