Lesson 1: Cells and Life
The smallest unit of Life
Cell
The cell membrane is......
semipermeable
The movement of substances without the use of energy.
Passive Transport
Series of chemical reactions that convert the energy in food molecules into usable energy ATP
Cellular Respiration
The joining of many small molecules together to make a bigger one.
Macromolecules
The brain of the cell is the
Nucleus
The movement of substances from an area of high concentration to low concentration
Diffusion
Series of chemical reactions that convert light energy, water, and CO2 into food energy and oxygen
Photosynthesis
What are the four types of macromolecules
Proteins, Nucleic acids, lipids, carbohydrates
What is one difference between plant and animal cells.
Plant- cell wall, bigger vacuole
When molecules need help to pass through the membrane, it is called...
Facilitated diffusion
Where do plants get their energy from?
Sun
This macromolecule stores energy and provides structural support that is needed for communication between cells.
Carbohydrate
The powerhouse of the cell. Makes everything go
Mitochondria
The diffusion of water molecules
Osmosis
IS the process during which a cell takes in a substance by surrounding it with the cell membrane
Endocytosis
What are the three parts of the cell theory
1. All living things are made of one or more cells.
2. The cell is the smallest unit of life.
3. All new cells come from preexisting cells.
What is the difference between a prokaryotic cell and eukaroytic cells
pro has no membrane, and is mostly unicellular
Eukaryotic cells have a membrane and many cells
What two proteins help with facilitated diffusion. Explain the two
Carrying and channel
The processs during which the cell releases its contents outside of the cell using energy
Exocytosis