Characteristics of Life
True of False: To be considered living, an organism needs to show ALL of the characteristics of life
TRUE
Cells
What organelle is the "brain of the cell" that holds genetic information?
The nucleus
What are the TWO major categories of cells that all cells fall into.
Prokaryotes and Eukaryotes
True or false: Bacteria (prokaryotes) have a cell wall
True
What is the difference between UNICELLULAR and MULTICELLULAR? (Define both)
Unicellular - Organism made of 1 cell
Multicellular - Organism made of many cells
What level of organization is a "heart" an example of?
Organ
What organelle uses sunlight to make food energy for the cell?
Chloroplast
Which type of cell uses CHLOROPLASTS to make its own food using sunlight? (Plant cell or Animal cell?)
Plant Cell
Which characteristic of life is "maintaining an internal balance"? For example, maintaining a stable body temperature, pH, or blood sugar levels.
Homeostasis
Name at least THREE of the 6 characteristics of life we talked about in class. - Make sure they are things ALL life shares.
- Metabolism
- Get and use energy
- Respond to the environment
- Adapt to the environment
- Made of Cells
- Reproduction
What level of organization is "a group of cells working together"?
Tissues
What organelle uses food to make energy for the cell?
Mitochondria
What is at least ONE example of a prokaryote?
What is at least ONE example of a eukaryote?
Prokaryote: Bacteria, Archaea
Eukaryote: Plant, Animal, Fungus, Protist, etc.
Animals get their food by eating it. Plants get their food by making their own using photosynthesis.
What characteristic of life are these examples of?
Getting and using energy.
Which characteristic of life is "the sum of all of the chemical reactions in a cell"?
Metabolism
What level of organization is "two are more atoms bonded together"?
Molecule
What is the function/job of the RIBOSOME?
To make proteins.
Which type of cell has NO nucleus?
Prokaryote
Why are prokaryotes simpler/ less complex/ smaller than eukaryotes?
Prokaryotes have less organelles - They have NO membrane-bound organelles like the nucleus or mitochondria.
What are TWO of the three parts of the cell theory?
1. All living things are made of cells.
2. Cells are the basic unit of structure and function of life.
3. Cells only come from other cells.
Put the following levels of organization in order from SMALLEST to LARGEST: Organism, Cell, Organ System, Tissue, Organs
Cell, Tissue, Organ, Organ System, Organism
What is the function/ job of the GOLGI APPARATUS?
PACKAGE and PROCESS proteins
What THREE organelles do plant cells have that animal cells do NOT have?
Cell Wall, Large Vacuole, Chloroplast
What are 3 structures ALL cells have?
Plasma membrane (or cell membrane)
DNA/RNA
Ribosomes
Cytoplasm