Cell Test Flashcards
8 characteristics of living things
- Growth- puddle, animal
- Lifespan- car’s battery, flowers
- Excrete- garbage truck, maple tree
- Requires energy- iPod battery, caterpillar
- Repairs itself- Ironman, wolf
- Made up of cells- Lego, human
- Reproduction
- Responds to environment- solar panels, butterflies
3 parts of cell theory
- Cells are the basic unit of life
- All organisms are made up of one or more cells
- All cells come from pre-existing cells
What is cellular differentiation?
The process by which a cell becomes specialized to perform a specific function. Cells look different according to the environment the organism is in.
What is unicellular versus multicellular?
Unicellular organisms only have one cell, while multicellular organisms have multiple cells
What are vertebrates verses invertebrates?
Vertebrates have a backbone, while invertebrates don’t have one
5 Organ systems and their functions
Circulatory- transports nutrients, dissolved gases to and from individual cells
Respiratory- exchanges O2 and CO2 between blood and external environment
Digestive- breaks down food into nutrients
Musculoskeletal- structural support to body. Protects inside parts from outside. Movement and locomotion
Nervous- responds to changes in the internal/external environment. Coordinates functions of all other systems
How do cells organize in multicellular organisms?
According to their function
Cell-Tissue-Organ-Organ System-Organism
Muscle Cell-Muscle Tissue-Heart-Circulatory System-Body
Word-Paragraph-Page-Chapter-Book
What organelle would be the biggest in a cactus cell?
The vacuole, because it has to store lots of nutrients to survive. Cells look different according to the environment the organism is in
Nucleus
Control Center.
Office, principal, city hall
Cell wall
Protects and supports. Not in animal cell
Cell membrane
Controls what goes in/out of cell
Secretary, doors, city limits
Chloroplasts
Chlorophyll/photosynthesis
Kitchen, lunch lady, farm
Not in animal cell
Chromosomes
Contains genetic information
Superintendent, blueprints, mayor
Cytoplasm
Allows movement in cell
Hall monitor, hallways, roads
Mitochondria
Energy
Gym, gym teacher, power plants
