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48 Cards in this Set
- Front
- Back
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List the nine levels of life |
molecule, cell, tissues, organs, organ systems, organisms, population, community, biosphere |
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What is the fundamental unit of life? |
cell |
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Describe a prokaryotic cell |
simple, smaller, no membrane bound organelles, bacteria and archaea |
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Describe a eukaryotic cell |
complex, larger, membrane bound organelles, plants, animal, fungi, and protists |
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What is the control center of the cell? |
The nucleus |
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Plasma membrane |
controls what comes in and out of the cell |
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cytoplasm |
material surrounding nucleus |
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lysosomes |
digests substances brought into cell and destroys old parts |
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mitochondrion |
provides cell with energy |
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nucleus |
contains DNA |
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Nucleolus |
Produces ribosomes (RNA and proteins) |
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Ribosomes |
Protein Synthesis |
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Rough ER |
studded with ribosomes and produce membranes (PROTEINS) |
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Smooth ER |
detoxifies drugs and produces membrane (LIPIDS) |
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Golgi Complex |
sorts modifies and packages proteins |
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What is in the phospholipid bilayer? |
proteins, cholesterol, and carbs |
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What is passive transport? |
Doesn't require energy |
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What is active transport? |
Requires energy |
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List types of passive transport |
Simple diffusion, facilitated diffusion, and osmosis |
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What is simple diffusion? |
High concentration to low concentration |
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what is facilitated diffusion? |
High concentration to low concentration with aid of a membrane protein |
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What is osmosis? |
Higher water concentration to lower water concentration |
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Hypertonic |
More solute |
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Hypotonic |
Less solute |
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Isotonic |
equal |
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Active transport |
lower to higher concentration with aid of carrier protein and energy |
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endocytosis |
materials drawn into cell |
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exocytosis |
spills contents outside of cell |
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What are the 4 main types of tissues? |
Epithelial, Connective, Muscle, and Nervous |
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Describe epithelial cells |
covers body surfaces, lines cavities and organs, forms glands |
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What should u know for epithelial cells? |
shape of cells and number of layers |
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What time of epithelial cells are skin made of |
stratified squamous |
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What type of epithelial cell is the small intestine made of |
simple columnar |
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What are exocrine glands? |
Out of body: digestive, milk, oil, sweat |
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What are endocrine glands? |
in body: pituitary, thyroid, pancreas, adrenal |
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What type of tissue is blood? |
Connective |
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What is the most abundant tissue? |
Connective |
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List types of connective tissue |
blood, bone, cartilage |
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What are three types of muscle? |
Skeletal, cardiac, and smooth |
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Describe skeletal muscle |
attached to bone, striated (striped), and voluntary |
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Describe cardiac muscle |
walls of heart, branching, involuntary |
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Describe smooth muscle |
walls of stomach and intestine, striated, involuntary |
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What are nervous tissue for |
brain, spinal cord, and nerves |
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What do neurons do? |
nerve impulses |
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What do neuroglia do? |
glue; support, insulate, and protect neurons |
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Axon and dendrite |
Axon: sends away Dendrite: receives |
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Ventral vs Dorsal Cavity |
Ventral: front Dorsal: Back (cranial and spinal) |
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What is the integumentary system? |
skin, hair, nails, sweat, oil, wax |
