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Cells001

QuestionAnswer
All living organisms are made up of microscopic structures called..? Cells
What're organelles? "organs" of the cell
What're examples of organelles? Cell Wall, Cell membrane, cytoplasm,vacuole
What is cytoplasm? Fluid that houses the other organelles
Cell Membrane? Boundary layer around the cytoplasm
Cell wall ? Provides structural support
What is the function of a vacuole? Stores water and food
What's the function of a lysosome? Contains specific enzymes to break down molecules
Golgi apparatus? Gets rid of waste
What's the nucleus? "brain" of the cell
What's chromatin composed of? long thin strands of DNA
What're ribosomes? RNA and protein complexes that are found in all cells
What's the function of a mitochondria? Takes in nutrients, breaks them down; creates energy for the cell
Chloroplasts? food producers in plant cells
What does the endoplasmic reticulum do? Transports chemicals between and within cells
Group of interconnected cells are known as ? Tissue
Group of tissues that work together to perform a specific function Organs
What's the highest level of organization? Organ systems
Summarized levels of organization Cells-> tissue-> organ -> organ system
What's the lowest level of organization? Cells
How do cells communicate? Through nerve impulses; hormones
What interprets the nerve system? Thee brain
What's homeostasis? maintains internal conditions for survival
Two mechanisms to maintain homeostasis Sweating; Shivering
How does sweating help maintain homeostasis? Keeps the body cool by evaporating water from the surface of the skin
How does shivering help maintain homeostasis? Helps to raise body temperature by forcing the body to move
Created by: CrisssJ
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