Biology 181 Final Exam with all Correct & 100% Verified
Answers| Actual Complete Exam |Already Graded A+
(Just Released)
A Theory ✔Correct Answer--an explanation for a very general class of phenomena or observations
that are supported by a wide body of evidence.
Cell Theory ✔Correct Answer--all organisms are made of cells, and all cells come from existing
cells.
Natural Selection ✔Correct Answer--heritable traits passed onto offspring, population is a group of
the same individuals living in the same area at the same time.
A Hypothesis ✔Correct Answer--an idea or theory that is not proven but that leads to further study
or discussion
3 Domains ✔Correct Answer--Prokaryotic Cells:
Bacteria
Archaea
Eukarya--Eukaryotic, Animals, Plants, Fungi
What do cells have in common? ✔Correct Answer--All cells have
Nucleotides,
Proteins,
Carbohydrates,
Plasma Membrane
Main Differences B/W Prokaryotic Cells and Eukaryotic Cells ✔Correct Answer--Pro- No Nucleus
Euk- Has a Nucleus
Ribosomes ✔Correct Answer--What: Large/Small subunits
Where: Cytoplasm
Function: Protein synthesis
Mitochondria ✔Correct Answer--What:Outer defines surface, Inner connected to cristae
Where:Cytoplasm
Function: ATP Synthesis
Chloroplasts ✔Correct Answer--What: In algae and plants, double membrane
Where:
Function: Photosynthesis
Nuclei ✔Correct Answer--What:
Where:
Function:
Inside the Nucleus ✔Correct Answer--DNA
, How do large molecules get into the nucleus? ✔Correct Answer--...
Difference B/W Cytosol and Cytoplasm ✔Correct Answer--...
Why are membranes important? ✔Correct Answer--separates life from nonlife,
separates the cell's interior from the external environment
Lipids ✔Correct Answer--What: carbon based molecules,
Main Characteristics: Nonpolar&Hydrophobic,
Do not dissolve in water
Difference B/W Saturated and Unsaturated Fats? ✔Correct Answer--Saturated: Single carbon
bonds, Solid
Unsaturated: At least one double carbon bond, Liquid
3 Types of Lipids ✔Correct Answer--Fats: stores energy
Steroids:hormones
Phospholipids: main component of the plasma membrane
Membrane Permeability ✔Correct Answer--Short and Unsaturated hydrocarbon tails HIGHER
permeability and fluidity
Long and Saturated hydrocarbon tails LOWER permeability and fluidity
Diffusion: ✔Correct Answer--Random movement of the molecules in solution
SPONTANEOUS - no energy required
Osmosis: ✔Correct Answer--diffusion of water across a semipermeable membrane
Solute NOT permeable
Which direction do solutes and water flow b/w solutions of different concentrate? ✔Correct
Answer--HIGH water concentration to LOW water concentration
OR
LOW solute concentration to HIGH water concentration
Hypertonic: ✔Correct Answer--Inside solution is hypertonic to outside when there are more
solutes inside the membrane
Hypotonic: ✔Correct Answer--Inside solution is hypotoic to outside when there are less solutes
inside the mebrane
Isotonic: ✔Correct Answer--Inside and Outside solutions are isotinic when there is an equal
amount of solutes inside and outside the mebrane
Channel Proteins: ✔Correct Answer--integral protiens
SELECTIVE
-only specific ions/molecules can pass
through
NO energy input
Carrier Protiens: ✔Correct Answer--NO energy input
GLUT-1
Answers| Actual Complete Exam |Already Graded A+
(Just Released)
A Theory ✔Correct Answer--an explanation for a very general class of phenomena or observations
that are supported by a wide body of evidence.
Cell Theory ✔Correct Answer--all organisms are made of cells, and all cells come from existing
cells.
Natural Selection ✔Correct Answer--heritable traits passed onto offspring, population is a group of
the same individuals living in the same area at the same time.
A Hypothesis ✔Correct Answer--an idea or theory that is not proven but that leads to further study
or discussion
3 Domains ✔Correct Answer--Prokaryotic Cells:
Bacteria
Archaea
Eukarya--Eukaryotic, Animals, Plants, Fungi
What do cells have in common? ✔Correct Answer--All cells have
Nucleotides,
Proteins,
Carbohydrates,
Plasma Membrane
Main Differences B/W Prokaryotic Cells and Eukaryotic Cells ✔Correct Answer--Pro- No Nucleus
Euk- Has a Nucleus
Ribosomes ✔Correct Answer--What: Large/Small subunits
Where: Cytoplasm
Function: Protein synthesis
Mitochondria ✔Correct Answer--What:Outer defines surface, Inner connected to cristae
Where:Cytoplasm
Function: ATP Synthesis
Chloroplasts ✔Correct Answer--What: In algae and plants, double membrane
Where:
Function: Photosynthesis
Nuclei ✔Correct Answer--What:
Where:
Function:
Inside the Nucleus ✔Correct Answer--DNA
, How do large molecules get into the nucleus? ✔Correct Answer--...
Difference B/W Cytosol and Cytoplasm ✔Correct Answer--...
Why are membranes important? ✔Correct Answer--separates life from nonlife,
separates the cell's interior from the external environment
Lipids ✔Correct Answer--What: carbon based molecules,
Main Characteristics: Nonpolar&Hydrophobic,
Do not dissolve in water
Difference B/W Saturated and Unsaturated Fats? ✔Correct Answer--Saturated: Single carbon
bonds, Solid
Unsaturated: At least one double carbon bond, Liquid
3 Types of Lipids ✔Correct Answer--Fats: stores energy
Steroids:hormones
Phospholipids: main component of the plasma membrane
Membrane Permeability ✔Correct Answer--Short and Unsaturated hydrocarbon tails HIGHER
permeability and fluidity
Long and Saturated hydrocarbon tails LOWER permeability and fluidity
Diffusion: ✔Correct Answer--Random movement of the molecules in solution
SPONTANEOUS - no energy required
Osmosis: ✔Correct Answer--diffusion of water across a semipermeable membrane
Solute NOT permeable
Which direction do solutes and water flow b/w solutions of different concentrate? ✔Correct
Answer--HIGH water concentration to LOW water concentration
OR
LOW solute concentration to HIGH water concentration
Hypertonic: ✔Correct Answer--Inside solution is hypertonic to outside when there are more
solutes inside the membrane
Hypotonic: ✔Correct Answer--Inside solution is hypotoic to outside when there are less solutes
inside the mebrane
Isotonic: ✔Correct Answer--Inside and Outside solutions are isotinic when there is an equal
amount of solutes inside and outside the mebrane
Channel Proteins: ✔Correct Answer--integral protiens
SELECTIVE
-only specific ions/molecules can pass
through
NO energy input
Carrier Protiens: ✔Correct Answer--NO energy input
GLUT-1
