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What is the scientific method order?
Question
Background research
Hypothesis
Experiment
Analyze data
Communicate results
What are the features of a prokaryote cell?
Lacks a nucleus
No membrane-bound organelles
Ex: Bacteria
What are the features of an Eukaryote cell?
Includes a nucleus (which contains DNA)
Includes various organelles
EX: plant and animal cells
What is a mitochondria?
Energy processing, makes ATP and is the powerhouse of the cell.
What is a cell membrane?
Responsible for letting things in and out of the cell (selectively permeable)
What is a chloroplast
Contains chlorophyll-green pigment in plants that absorbs the sun's energy
What is the nucleus
control center of the of the cell containing DNA (genetic material)
maintain a constant, stable internal environment suitable for life
active transport
process of living cells using energy to move substances
the number of molecules of a substance is equal in two areas
define passive transport
movement of materials through cell membrane without using energy
define diffusion
movement of material from an area of greater to lesser concentration
what are the characteristics of living things
cellular organization, growth and development, reproduction, response to stimuli, homeostasis, energy utilization, metabolism,adaptation
tissue types
muscle, connective, nerve, epithelial
skeletal system
serves as a support structure and provides shape
bone marrow- manufactures red blood cells
muscular system
allows the body to move
muscles get energy from glucose through fermentation during high levels of activity
measurement units
mass- grams
volume-milliliters or cubic centimeters
density- g/ml or g/cm