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Biology
Unit 2: Cells
Guided notes
Chapter 7: Life is Cellular
I.
The Discovery of the Cell
BIG IDEA: What is the cell theory?
A. Early microscopes:
B. The Cell Theory:
Cells=
Critical Thinking: How did the invention of the microscope help the development of the cell
theory?
II.
Prokaryotes and Eukaryotes
BIG IDEA: How are prokaryotic and eukaryotic cells different?
A. Cells membrane:
They are like:
Also called:
Prokaryotes
Examples:
Eukaryotes
Examples:
Critical Thinking: What features do all cells have?
7.2 Cell Structure
III.
Cell organization
BIG IDEA: What is the role of the cell nucleus?
A. Cells consist of two major parts:
i. Cytoplasm:
Looks like:
ii. Nucleus:
Nuclear envelope:
Nuclear pore:
Chromatin:
Chromosomes:
Nucleolus:
IV.
Organelles that store, clean up, and support
BIG IDEAS: What are the functions of vacuoles, lysosomes, and the cytoskeleton?
A. Vacuoles and Vesicles:
i. Function:
ii. Where found:
B. Lysosomes:
i. Function:
ii. Where found:
C. The cytoskeleton:
i. Function:
1. Microfilaments:
2. Microtubules:
a. Centrioles:
ii. Where found:
V.
Organelles that build proteins
BIG IDEAS: What organelles help make and transport proteins?
A. Ribosomes:
i. Function:
ii. Where found:
B. Endoplasmic Reticulum:
i. Function:
ii. Where found:
C. Golgi Apparatus:
i. Function:
ii. Where found:
VI.
Organelles that capture and release energy
BIG IDEA: What are the functions of chloroplasts and mitochondria?
A. Chloroplasts:
i. Function:
ii. Where found:
B. Mitochondria:
i. Function:
ii. Where found:
VII.
Cellular boundaries
BIG IDEA: What is the function of the cell membrane?
A. Cell walls:
i. Function:
ii. Where found:
B. Cell membranes:
i. Function:
1. Lipid bilayer:
2. Properties of Lipids:
3. The Fluid Mosaic Model:
a. Selectively permeable:
VIII.
IX.
Passive transport
Active transport