BIO 100 M1 LAB ASSIGNMENT ACT II
SCIENTIFIC REASONING COMPREHENSIVE
QUESTIONS AND CORRECT ANSWERS
◉ Cells are the __________ living thing
Answer: smallest
◉ How are cells formed?
Answer: By division of a previously existing cell
◉ What must ALL cells have?
Answer: plasma membrane
◉ What is the difference between DNA in prokaryotic cells and
eukaryotic cells?
Answer: Pro - circular
Eu - linear
◉ What are ribosomes?
Answer: Protein making organelle
, ◉ Does the passive transport require energy?
Answer: No
◉ Does the active transport require energy?
Answer: Yes
◉ What is diffusion?
Answer: Movement across a selectively permeable membrane
following a concentration gradient
◉ What is osmosis?
Answer: spontaneous net movement of solvent molecules through a
semipermeable membrane into a region of higher solute
concentration, in the direction that tends to equalize the solute
concentrations on the two sides
◉ What is facilitated diffusion?
Answer: Diffusion via a carrier protein
Follows concentration gradient
◉ What is active transport?
Answer: Uses energy (ATP)
Moves molecules against the concentration gradient
SCIENTIFIC REASONING COMPREHENSIVE
QUESTIONS AND CORRECT ANSWERS
◉ Cells are the __________ living thing
Answer: smallest
◉ How are cells formed?
Answer: By division of a previously existing cell
◉ What must ALL cells have?
Answer: plasma membrane
◉ What is the difference between DNA in prokaryotic cells and
eukaryotic cells?
Answer: Pro - circular
Eu - linear
◉ What are ribosomes?
Answer: Protein making organelle
, ◉ Does the passive transport require energy?
Answer: No
◉ Does the active transport require energy?
Answer: Yes
◉ What is diffusion?
Answer: Movement across a selectively permeable membrane
following a concentration gradient
◉ What is osmosis?
Answer: spontaneous net movement of solvent molecules through a
semipermeable membrane into a region of higher solute
concentration, in the direction that tends to equalize the solute
concentrations on the two sides
◉ What is facilitated diffusion?
Answer: Diffusion via a carrier protein
Follows concentration gradient
◉ What is active transport?
Answer: Uses energy (ATP)
Moves molecules against the concentration gradient