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60 Cards in this Set
- Front
- Back
autotroph
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Organisms that make their own food are called _________
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organism
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all living things
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stimulus
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an orgnism reacts to a _________ with response
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thirst
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is an example of internal stimulus
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internal stimulus (example)
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thirst
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cell
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is the basic unit of structure and function in an organism.
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external stimulus (example)
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change in temperature in the envionment
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spontaneous generation
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= the mistaken idea that living organisms arise from nonliving sources
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heterotrophs
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= organisms that get energy by consuming pther organisms
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response
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with that an organism reacts to a response
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external
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from the outside
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internal
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from the inside
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homeostasis
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= an organisms ability to maintain stable internal conditions
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reproduce
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= to produce offsprings that are similiar to the parents
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six characteristics all living things share?
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cells (with nucleus cell membrane), organs, tissues and organs systems
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How did Redi's Experiment help disporve the idea of spontanous generation?
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in ome jar no living things grew, in the other jar they did
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What are the 4 basic needs all living things must satisfy?
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-energy
-water -living space -stable internal condition (homeostasis) |
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Describe the difference between growth and development:
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growth: increasing in size
development: increasing in skills |
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Robert Hook
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one of the first people to observe cek=lls
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Leuwenhoek
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was the first person to see single cell organisms
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Matthias Schleiden
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concluded that plants are made up of cells
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Schwann
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concluded that animals are made up of cells
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Virchow
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proposed that all cells come from other cells
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resolution
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magnification: is to see the ability to distinguish the individual parts of an object
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electron microscop/light microscop
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electron microscop:
light microscop |
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microscop
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any instument that makes small object look larger
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compound microscope
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a light microscope that has more than one lens
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cell theory
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a widely accepted explanation of th erelationship between cells and living things
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magnification
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the ability to make things looking larger than they are
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convex lens
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a curved lens that is thicker in the middle than t the edges
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nucleus
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Is the brain of the cell.
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endoplasmatic reticulum
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Carries materials from one part of the cell to another.
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mitochondria
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Produses most of the energy the cell needs to carry out its functions.
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cell membrane
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cells with out a cell wall have a cell membrane, which separates the cell from its surroundings.
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organells
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They are tiny cell structures that carry out specific functions within the cell.
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cellwall
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A nonliving surface around the plant cell.
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chromatin
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Strands of genetic material floating around inside the nucleus
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ribosomes
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Produce protein
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Golgi bodies
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receives protein and other newly formed materials and distributes them all over the cell
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Chloroplasts
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captures sunlight and uses it to produce food for the cell. It also gives the plant the green color.
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vacuole
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It is the cells storage area.
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lysosomes
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They are small roung structures that break big food partcals into very small ones.
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selective breeding
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using technology to change and organism in any way you what it to be or look like.
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Heredity
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the process in which the traits pass from a parent to an offpring
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DNA
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the genetic material that carries infomation about an organism that is passed from the parent to the offspring
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Gene
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controls a trait that an organism inherits.
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Egg
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female sex cell
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Sperm
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male sex cell
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nucleus
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Is the brain of the cell.
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endoplasmatic reticulum
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Carries matierals from one part of the cell to another.
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mitochondria
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Produses most of the energy the cell needs to carry out its functions.
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cell membrane
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cells with out a cell wall habve a cell membrane, which seperates the cell from its surroundings.
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organells
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They are tiny cell structures that carry out specific functions within the cell.
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cellwall
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A nonliving surface around the plant cell.
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chromatin
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Strands of genetic material floating around inside the nucleus
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ribosomes
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Produse protien
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Golgi bodies
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riecives protien and other newly formed materials and distributes them all over the cell
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Chloroplasts
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captures sun light and uses it to produse food for the cell. It also gives the plant the green color.
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vacuole
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It is the cells storage area.
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lysosomes
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They are small roung structures that break big food partcals into very small ones.
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