There are 5 basic life functions
Growth and development
use energy
reproduce
respond to environment
get rid of waste
All living things have certain things in common
Adaptation to their environment
use energy
Sensitive to environment
Reproduction
ability to grow
Cells
The building blocks of life are ____cells____________________.
All cells in a human are not the same. Please give examples of at least two different types of cells in humans.
nerve cells
fat cells
Why are cells not the same?
each kind of cell has a specific function for the organism.
The first person to discover cells was __________Robert Hooks________________________. He called them cells because they looked like ___tiny rooms_______________________________. He first saw cells when he was looking at a piece of _______cork_________________ under a microscope.
The cell theory was created by Matthais Schleiden__________ and _Theodore Schwann____________.
The three main ideas in the cell theory are
Cells are the basic unit of life
All organisms are composed of one or more cells
All cells arise from __preexisting cells________________
Unlike animal cells, plant cells contain the organelles ____chloroplasts____________ and cell wall.
All animal cells are covered in a cell ____membrane______________________________. The function of this is to _____________holds parts together and seperates it from its surroundings.
The different parts of the cell are known as ____organells________________________. Each organelle has a specific function. The function of the nucleus is _____controls cells activities__________________________________________________. The mitochondria are also known as the _____power plant______________________ of the cell because their function is to ______breaks down food and realeases energy aquired from food. Storage is the main function of the ____vacuoles.
Bacteria are interesting organisms. Bacterial cells do not have a ____nucleus. Instead the chromosomes of the cell are located __throughout the cell______.
There are different types of transport used in cells as well. _Diffusion_____ is the movement of particles from high concentration to low concentration. Osmosis is different than this because it require__crossing over a membrane__ and ________water___________________.
What is the difference between active and passive transport? Active transport requires energy and passive transport does not.
What organelle makes the energy used in active transport? Mitochondira
Is a virus a living cell? no
What is contained inside a virus? Parts of a chromosome that has plans for invading a cell
What is the only life function of a virus? reproduction
Tuesday, February 26, 2008
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1 comment:
Nicely done!
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