1. Cells: The Basic Units of Life & the Cell in Action

2. Things that have ALL the characteristics of life are called what?
ORGANISMS
All living things are… organized, grow & develop, reproduce, respond, maintain certain internal conditions & use energy.

3. From the Latin word cellula, which means “small rooms”
In biology, the smallest unit that can perform all life processes is called what?
A CELL
ROBERT HOOKE
From the Latin word cellula, which means “small rooms”

4. Humans have over 100 trillion cells!
This states that all living things are… made of one or more cells, the cell is the smallest unit of life & all new cells come from preexisting cells is known as what?
THE CELL THEORY
Humans have over 100 trillion cells!

5. CELL MEMBRANE
The ________________ is a flexible covering that protects the inside of a cell from the environment outside of a cell.
A __________ is a stiff structure outside the membrane (only in plant cells).
CELL WALL

6. A liquid fluid inside the cell that contains salts & other molecules is called the what?
CYTOPLASM
What is the network of thread-like proteins that are joined which form a framework inside the cell?
CYTOSKELETON

7. A membrane-surrounded component (part) of a eukaryotic cell with a specialized function is called what?
ORGANELLE

8. The abbreviation for deoxyribonucleic acid, an organism’s genetic material found in cells is what?
DNA

9. The ____________ is the part of the eukaryotic cell that directs cell activities & contains genetic information stored in DNA-the brain of the cell.
NUCLEUS

10. Animals, plants, mold, yeast & fungi
Prokaryotes:
Eukaryotes:
An organism that consists of a single cell that does not have a nucleus
An organism made up of cells that have a nucleus enclosed by a membrane
Bacteria
Animals, plants, mold, yeast & fungi

11. These organelles that use light energy & make food-a sugar called glucose-from water & carbon dioxide in a process know as photosynthesis (they are only present in plant cells). They are called what?
CHLOROPLASTS

12. A cell organelle in which amino acids are hooked together to make protiens
RIBOSOME
Another cell organelle in eukaryotic cells that is the site of cellular respiration and breaks down protiens to make ATP is what?
MITOCHONDRIA

13. Animal Cells vs. Plant Cells
Animal Cells are Round & Curved.
Plant Cells are Square & Boxy.
Except for __________ & ____________
most organelles are found in both Animal & Plant Cells!
CELL WALLS
CHLOROPLASTS

14. Organelles & Their Functions
Nucleus
Chloroplast
Contains the cell’s DNA & is the control center of the cell
Uses the energy of sunlight to male food for plants
Ribosome
Golgi Complex
Amino acids are hooked together to make proteins
Processes & transports proteins & other materials out of the cell
Endoplasmic Reticulum
Vacuole
Makes lipids, breaks down drugs & other substances
Stores water & other materials
Mitochondria
Lysosome
Breaks down food molecules to make ATP
Digests food particles, wastes, cell parts & foreign invaders