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Table of Contents
Levels of Organization
Discovering Cells
Cells and Homeostasis
Looking Inside Cells
Cell Division
Cells and Life Processes
Levels of Organization
ElementsThe colored spheres represent atoms. Which examples represent the same element?
Molecules and CompoundsCarbon dioxide is a compound. So is water.
Levels of Organization
Levels of Organization
The graph compares the percentages of some molecules found in a bacterial cell and in an animal cell. What would be a title for the graph?
Levels of Organization
Levels of OrganizationLiving things are organized in levels of increasing complexity. Complete the missing terms to show the patterns of organization of organisms from simple to complex.
Needs of CellsA single cell has the same needs as an entire organism. What material moves in the direction shown by each blank arrow?
Discovering Cells
A Compound MicroscopeThis microscope has a 10x lens in the eyepiece. The revolving nosepiece holds three different lenses: 4x, 10x, and 40x.
Eyepiecelens
Revolvingnosepiece
Lenses
SlideStage
Lens
Light rays
Light source
Discovering Cells
ResolutionThe images in colorful photographs actually consist of only a few ink colors in the form of dots. This circle has been enlarged to show a tiny section of a picture of a bird's wing.
Discovering Cells
Cells and Homeostasis
Energy From FoodFlorida’s orange crop comes from the energy captured in photosynthesis. The 2008–2009 crop totaled 162 million boxes. Which process applies to each organism?
Cells and Homeostasis
DiffusionSome materials move across the cell membrane by way of diffusion. Show the overall direction that molecules will travel as a result of diffusion.
A Typical Animal CellEach kind of cell structure has a different function within a cell. Where is the cell membrane?
Looking Inside Cells
Organelles of a CellThe structures of a cell look as different as their functions. Where do you find these structures in the cell diagram?
Chromatin
Nucleolus
Nuclearenvelope
Pores
What does the nuclear envelope do? In what types of cells wouldyou expect to find a lot of mitochondria?
Ribosomes
What do ribosomes do?
Looking Inside Cells
Plant CellThese illustrations show typical structures found in plant cells. What is the function of each structure?
Looking Inside Cells
Animal CellThese illustrations show typical structures found in animal cells. What is the function of each structure?
Looking Inside Cells
Looking Inside Cells
Compare and contrast the structures present in plant cells and animal cells.
Looking Inside Cells
Golgi ApparatusHow can this sentence be completed? The Golgi Apparatus is an organelle that ___________ and ___________ materials made in the __________.
Looking Inside Cells
Model for a Cell FunctionHow do the parts of a cell function in ways that are similar to the parts of a building?
Looking Inside Cells
ChloroplastA chloroplast captures energy from sunlight and changes it to a form of energy cells can use in making food. Chloroplasts make leaves green because leaf cells contain many chloroplasts.
Comparing Cell CyclesThe table below compares the length of different cell cycles.
Cell Division
Cell Division
Interphase: Preparing to DivideThe changes in a cell during interphase prepare the cell for mitosis.
Cell Division
When one cell splits in half during cell division, the result is two new cells. Each of those two cells can divide into two more, and so on.
Mitosis: ProphaseMitosis begins with prophase, which involves further changes to the cell.
Cell Division
Cell Division
The Cell CycleCells undergo an orderly sequence of events as they grow and divide. What are the missing parts of the stages?
Centriole pairs Spindle fiberCentromere
Chromatids
Cell Division
FirmicutesCertain bacteria divide only once every 100 years! Bacteria known as Firmicutes live in certain rocks that are found 3 kilometers below Earth’s surface. The life functions of Firmicutes occur so slowly that it takes 100 years or more for them to store enough energy to split in two.
Length of a Liver Cell CycleHuman liver cells generally reproduce less than once per year. At other times, they can complete one cell cycle in about 22 hours.
Cell Division
