Chapter 4 Vocab. and Chepter Highlights
Terms
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- Tissue
- a group of cells that work together to perform a spefic job in the body
- Organ
- when two or more tissues work together to perform a specific job
- Organ System
- when organs work together in groups to perform particular job
- Organism
- anything that can live on its own
- Unicellular
- anything that can't live on its own
- Multicellular
- can only excist as a group of cells
- Community
- two or more different populations living in the same area
- Ecosystem
- the community and all of the nonliving things that affect it, such as water, soil, rocks, temperature, and light
- Cell Membrane
- all cells are surrounded by this
- Organelles
- when cells live, grow, and reproduce these are the stuctures
- Cyplotasm
- the fluid and almost everything in it
- Nucleus
- a membrane-covered organelle that holds the cells' DNA
- Prokaryotic
- cells that do not have a nucleus
- Eukaryotic
- cells that have a nucleus
- Bacteria
- very small single celled organisms with out a nucleus
- Cell Wall
- provies strength and support to the cell membrane
- Ribosomes
- the amino acids hooked together to make protiens at very small organelles
- Endoplasmic Reticulum
- a membrane-covered compartment that makes lipids and other materials
- Mitochondria
- where most ATP is produced at bean-shaped organelles
- Chloroplast
- have two membranes and structures that looklike stacks of coins
- Golgi Complex
- when protiens and other materials need to be processed and shiped out of a eukaryotic cell
- Vesicles
- the eukarytoic cell's membrane-covered chamber
- Vacuole
- a plant's membrane-covered chamber
- Lysosomes
- special vesicles in animal cells that contain enzymes
- What is the cmallest unit of life?
- A cell
- What do multicellular organisms do?
- Groups of cells can work together to from tissue
- What do different populations living together in the same area make up?
- A population
- What does the cell theory state?
- that all organisms are made of cells, the basic unit of life, and all cells come from other cells
- What do all cells have?
- A cell membrane
- Wha tare the two energy-producing organelles?
- mitochondria and Chloroplasts