BIOL 200 Fundamentals Of Cell Biology Lecture Review
MIDTERM EXAM PREP COMING SOON 2025 University of British
Columbia
Lecture 1.1 & 1.2:
What is a cell
- Membrane-bound unit
- Capable of carrying out essential life processes
- Maintains a stable internal environment with concentrations of molecules and ions that
differ from those outside
- Can assimilate and transform material
- It can but not always reproduce
All cells have similar genetic instructions
- Stored in DNA molecules
- Constructed out of same chemical building blocks
- Interpreted by essentially the same chemical machinery
- Replicated in similar ways
Most plant and animal cells have
- Nucleus
- Mitochondria
What is an organelle
- Different bodies within a living cell that perform various specific functions (e.g. vacuole,
endoplasmic reticulum)
- Why are they important
- Control passage of materials bw compartments
- Provides optimal local environment for metabolic reactions and other functions
- High local concentration within a compartment can be achieved
, ER vs
Gol
gi
- ER
- Network of flattened interconnected sacs and vesicles occupying much of the cytoplasm
- Ribosomes bound to the systolic surface of ER are sites of protein synthesis
- Golgi
- Series of flattened membranous sacs which recive and chemically modify the
proteins made in the ER and direct them to various locations
Review:
- Cells
- Small, membrane enclosed units filled with a concentrated aqueous solution of
chemicals and endowed with the extraordinary ability to create copies of themselves by
growing and then dividing into two
- Organelles
- Separate, recognizable substructures with specialized functions
- Organism
, - Form of life that has the ability to act or function independently
- Are capable of
- Metabolism / maintenance of homeostasis
- Growth and reproduction
- Responses to the environment
- Some organelles are not membrane-bound
- Ribosomes
- Microtubules
- Actin filaments
- Centrosomes
- Cytoplasm
- Interior of the cell outside the nucleus
- Cytosol
- Part of the cytoplasm that is not containied within intracellular membranes
Learning Outcomes for Unit 1.2
- Animal cells are typically 5-20um
- Plants cells are typically 10-100um
, 1. Distinguish between the four major classes of microscopy: brightfield light microscopy, fluorescence
light microscopy, transmission electron microscopy (TEM), and scanning electron microscopy (SEM).
Transmitted light microscopy
- Optical techniques to increase the contrast of unstained living cells
- Brightfield
MIDTERM EXAM PREP COMING SOON 2025 University of British
Columbia
Lecture 1.1 & 1.2:
What is a cell
- Membrane-bound unit
- Capable of carrying out essential life processes
- Maintains a stable internal environment with concentrations of molecules and ions that
differ from those outside
- Can assimilate and transform material
- It can but not always reproduce
All cells have similar genetic instructions
- Stored in DNA molecules
- Constructed out of same chemical building blocks
- Interpreted by essentially the same chemical machinery
- Replicated in similar ways
Most plant and animal cells have
- Nucleus
- Mitochondria
What is an organelle
- Different bodies within a living cell that perform various specific functions (e.g. vacuole,
endoplasmic reticulum)
- Why are they important
- Control passage of materials bw compartments
- Provides optimal local environment for metabolic reactions and other functions
- High local concentration within a compartment can be achieved
, ER vs
Gol
gi
- ER
- Network of flattened interconnected sacs and vesicles occupying much of the cytoplasm
- Ribosomes bound to the systolic surface of ER are sites of protein synthesis
- Golgi
- Series of flattened membranous sacs which recive and chemically modify the
proteins made in the ER and direct them to various locations
Review:
- Cells
- Small, membrane enclosed units filled with a concentrated aqueous solution of
chemicals and endowed with the extraordinary ability to create copies of themselves by
growing and then dividing into two
- Organelles
- Separate, recognizable substructures with specialized functions
- Organism
, - Form of life that has the ability to act or function independently
- Are capable of
- Metabolism / maintenance of homeostasis
- Growth and reproduction
- Responses to the environment
- Some organelles are not membrane-bound
- Ribosomes
- Microtubules
- Actin filaments
- Centrosomes
- Cytoplasm
- Interior of the cell outside the nucleus
- Cytosol
- Part of the cytoplasm that is not containied within intracellular membranes
Learning Outcomes for Unit 1.2
- Animal cells are typically 5-20um
- Plants cells are typically 10-100um
, 1. Distinguish between the four major classes of microscopy: brightfield light microscopy, fluorescence
light microscopy, transmission electron microscopy (TEM), and scanning electron microscopy (SEM).
Transmitted light microscopy
- Optical techniques to increase the contrast of unstained living cells
- Brightfield
