Download animal cells

Chapter 2 - Cells
Study Guide
Key Concepts:
 All living things are made of cells
 Cells are the smallest units that can carry out the activities of life
 All cells must obtain energy, remove waste products, and reproduce in
order to stay alive
 The development of the microscope helped create the cell theory.
 Know the function of each organelle: lysosomes, vacuole, cell membrane, cell
wall, chloroplast, cytoplasm, nucleus, mitochondria, and endoplasmic reticulum
(use sheet that we filled out together)
 Water travels across a cell membrane during the process of osmosis
 Know how plant cells and animal cells are different
 In diffusion particles move to areas of lower concentration
 Small cells can function more efficiently than a large cell because materials
can move quickly through a small cell
 The cell’s cytoplasm is made up mostly of water
 Know the sequence that takes place during mitosis: 1) DNA is copied, 2) Pairs
of chromosomes line up and move away from each other, 3) A new membrane
forms around each nucleus, 4) The cytoplasm divides
 The plant cells shape is boxy and the animal cell is circular
 The difference between vacuoles in plant cells and animal cells are that
plants have 1 large vacuole and animals cell have many small vacuoles
 Schleiden concluded that all plants are made of cells.
 Robert Hooke discovered that cells exist
 DNA stores information about how an organism will grow and develop
 Mitosis begins in the nucleus and is completed when a new membrane forms
around each nucleus