Biology 181 Final Exam Questions With Well Detailed Correct Answers.

Biology 181 Final Exam Questions With Well
Detailed Correct Answers.
QUESTION; Osmosis: - ANSWER-diffusion of water across a semipermeable membrane

Solute NOT permeable



QUESTION; Which direction do solutes and water flow b/w solutions of different concentrate? -
ANSWER-HIGH water concentration to LOW water concentration

OR

LOW solute concentration to HIGH water concentration



QUESTION; Hypertonic: - ANSWER-Inside solution is hypertonic to outside when there are more solutes
inside the membrane



QUESTION; Hypotonic: - ANSWER-Inside solution is hypotoic to outside when there are less solutes
inside the mebrane

QUESTION; A Theory - ANSWER-an explanation for a very general class of phenomena or observations
that are supported by a wide body of evidence.



QUESTION; Cell Theory - ANSWER-all organisms are made of cells, and all cells come from existing cells.



QUESTION; Natural Selection - ANSWER-heritable traits passed onto offspring, population is a group of
the same individuals living in the same area at the same time.



QUESTION; A Hypothesis - ANSWER-an idea or theory that is not proven but that leads to further study
or discussion



QUESTION; 3 Domains - ANSWER-Prokaryotic Cells:

Bacteria

Archaea

, Eukarya--Eukaryotic, Animals, Plants, Fungi



QUESTION; What do cells have in common? - ANSWER-All cells have

Nucleotides,

Proteins,

Carbohydrates,

Plasma Membrane



QUESTION; Main Differences B/W Prokaryotic Cells and Eukaryotic Cells - ANSWER-Pro- No Nucleus

Euk- Has a Nucleus



QUESTION; Ribosomes - ANSWER-What: Large/Small subunits

Where: Cytoplasm

Function: Protein synthesis



QUESTION; Mitochondria - ANSWER-What:Outer defines surface, Inner connected to cristae

Where:Cytoplasm

Function: ATP Synthesis



QUESTION; Chloroplasts - ANSWER-What: In algae and plants, double membrane

Where:

Function: Photosynthesis



QUESTION; Nuclei - ANSWER-What:

Where:

Function:



QUESTION; Inside the Nucleus - ANSWER-DNA