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33 Cards in this Set
- Front
- Back
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Cell theory is one of the
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basic principles of biology
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Cell theory states all living
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orgainisms are composed of cells
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The cell is the
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basic unit of life
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Cells arise from pre
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existing cells (not derived from spontaneous generation)
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Things smaller than a cell
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are not considered alive (proteins)
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Modern cell theory states energy
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flow occurs within cells
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organelles are
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like organs (nucleus, mitochondria)
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Main jobs of energy: make ____ , make ____ and re
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energy, proteins and reproduce
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Prokaryotes do not
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have an orgainised nucleus, DNA kind of floats around
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Two major kinds of prokaryotes are
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bacteria and archaea
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Eukaryotes are _________ cells
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plant and animal
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Eukaryotes contain a
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nucleus and other organelles enclosed within the membrane
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One of the four main tissue types that is involved with sensory perception
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epithelial tissue
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___________ is a type of epithelium that lines the interior surface of blood vessels and ______
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Endothelial tissue, lymphatic vessels
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Endothelial tissue lines the _____, _____, _____ and caillaries
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heart, veins, arteries
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when working out magnification, 0.002mm is a _____ ___
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micrometer
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one billionth ( 10^9) is a _____ ____
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nanometer
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when working out magnification, ____ and ____ numbers to ensure marks
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convert, substitute
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COPD is ____ ____ ____ ___
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chronic obstructive pulmonary disease
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_____ attaches muscle to the bone
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tendon |
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closely packed ______ cells make up the epithelial
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columnar
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____ = thick filament ____ = thin filament |
myosin, actin
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_____ ____ is made up of thousands of muscle fibres that run up the length of the muscle
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skeletal muscles
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_____ ___ secretes mucus and enzymes which protect from p____
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columnar tissue, pathogens
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allows material to pass through by diffusion and filtration
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squamous tissue
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Acetylcholine causes ____ ____ and activates ____ ____
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muscle contractions, glandular functions
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slow twitch muscles have _____ capillaries to deliver oxygen
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more
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fast twitch muscles have ____ lactic acid made so ____ muscle fatigue
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more, more
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ATP is like
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molecular currency
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ATP contains ______ _____ which muscles are always looking for to turn into _____ _____
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chemical energy, mechanical energy
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negative membrane potential means the axon is
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polarised
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a protein along neuron pumping ions through membrane
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sodium potassium pump
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action potential triggers _____ ion gates
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voltage
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