Topics: Cell, Organelle, Eukaryote Pages: 7 (1726 words) Published: October 2, 2012
Chapter 3 Cloze Notes

CORNELL NOTES UNIT 2: Cells Directions: Create a Chapter 3: Cell Structure and Function minimum of 5 questions in this column per page I. Cell Theory (Section 3.1) (average). You can use these questions during class A. Early studies led to the development of the cell theory or tutorial to better understand a topic; or at home to better understand 1. Discovery of Cells your notes and prepare for tests and quizzes. a. Robert __________ (1665)—Used compound microscope to

look at tree bark called cork. Named hollow compartments “cells” b. Anton van _________________ (1674) —made more powerful single lens microscope. One of first to describe living cells c. More was learned as ______________ were improved 2. Cell Theory a. Matthias Schleiden (1838)—proposed _________ made of cells b. Theodor Schwann (1839)—after talking with Schleiden, concluded all __________ were composed of cells c. Rudolf Virchow (1855)—Proposed all cells come from ___________________ cells d. Accumulated research summarized in Cell Theory (one of first unifying concepts in _______________) 1) All organisms are made of ________ 2) All ____________ cells are produced by other living cells 3) The cell is the most _______ unit of life B. Prokaryotic cells lack a _______ and most internal structures of eukaryotic cells 1. Cells tend to be __________________ in size 2. All cells are enclosed by a _____________________ 1

Chapter 3 Cloze Notes

3. All cells filled with ________________, jelly-like substance containing dissolved proteins, ________ acids, minerals, etc. C. Cells can be separated into ______ broad categories 1. Prokaryotic cells—do __________ have a nucleus or other membrane-bound __________________

2. Eukaryotic cells—have a ______________ and other membrane-bound organelles. May be ______________ or singlecelled organisms II. Cell Organelles (Section 3.2) A. Cells have an internal structure 1. _______________ and molecules anchored to specific sites 2. Eukaryotic cells have a __________________ made of protein fibers a. Microtubules give cells _______, provide pathways for organelle movement, separate _________________

during cell division

b. Intermediate filaments provide strength c. Microfilaments enable cells to ______ and divide, important in muscle cells 3. Cytoplasm—important contributor to cell structure a. Occupies space between __________ and cell ______________ in eukaryotic cells b. Fluid portion made up mostly of __________, an important solvent 2

Chapter 3 Cloze Notes

c. Site of many _______________ reactions B. Several organelles involved in making and processing ____________ 1. Nucleus—storehouse for most ____________ information (DNA) a. Two major demands on nucleus 1) Protects ______ 2) DNA must be available for use at proper time 2. Nucleus surrounded by double membrane called ____________ _______________ a. Nuclear membrane/envelope pierced with _________ called nuclear ____________ b. Allows large ______________ to pass between nucleus and cytoplasm 3. Contains _________________—makes ribosomes C. Endoplasmic Reticulum (ER) and Ribosomes 1. Interconnected network of thin folded _______________ 2. _________ and _______ are produced in endoplasmic reticulum 3. Two types of endoplasmic reticulum a. Rough ER—studded with _________________ (make proteins) b. Smooth ER—No ______________ on surface. Makes ___________ and helps break down drugs and alcohol D. Ribosomes—composed of ______ and _____________ 1. Site of ____________ synthesis 2. Some bound to ___________ of endoplasmic reticulum, others suspended in ________________ 3

Chapter 3 Cloze Notes

E. Golgi Apparatus—Proteins from ER go here for ________________ 1. Closely layered stacks of _______________-enclosed spaces 2. _____________ proteins (some stored for later use) 3. Sorts and ________________ proteins F. Vesicles—__________ materials from cytoplasm and transport them within cell 1. Short-lived, _____________-bound...
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