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47 Cards in this Set
- Front
- Back
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characteristucs of living cells...
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-have orderly structure
-reproduce - grow nd develope -adapt and evolve |
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two main types of cells
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prokaryotes
and eukaryotes |
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unicellular means..?
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having one cell
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multi cellular..?
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having more than one cell
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robert hooke saw___ and named them ____?
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- saw boxes
- and named them cells |
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first person ever to observe live cells under a microscope was____?
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leewenhoek
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scheldon discovered that____...?
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all plants were made up of cells.
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who discovered that all animals were made up of cells?
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schwahn
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what did rudolph discover?
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that all cells came from pre existing cells.
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alll organisms are composed or made up of.....?
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one or more cells.
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____ is the basic unit of structure and organization of organisms.
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the cell.
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all cells come from...?
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preexisting cells
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____ do not contain nucleus or membrane found organelles.(like bacteria)
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prokaryotes
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what is the plasma membrane?
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flexible boundary between the cell and its environment.
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why do cells need a barrier?
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it helps the cell maintain homeostasis by being selectively permeable.
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cell barriers are....?
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selectively permeable.
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____ are embedded into the lipid layer of the plasma membrane.
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protiens
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____ move substances in and out of the cell.
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transport protiens.
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cholesterol helps......?
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helps to stabilize membrane and keep the lipids from sticking together.
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where is cholesterol found?
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found in the membrane
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plasma membrane can also be called the ______?
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fluid mosaic model.
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why can the plasma membrane be called the fluid mosaic model?
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bc the phospholipids move around constantly.
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plant cells, bacteria, fungi, and some plants have ______?
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a cell wall.
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what is cytoplasm?
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a jelly like material found inside the cell membrane and surrounds the cells organelles.
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control center for the cell is the ____?
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nucleus.
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what is chromatin?
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long strands of DNA
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what make ribosomes.?
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nucleus.
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the nucleus is surrounded by___?
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nuclear envelope.
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the nuclear envelope is a separate membrane that allows____ to pass.
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RNA
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who makes protein?
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ribosomes.
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ribosomes make protein using what?
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using directions from the DNA
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an organelle composed of highly flattened membrane.
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endoplasmic reticulm
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what are two main types of ER
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smooth and rough
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which does not have ribosomes and is involved in lipid producton?
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smooth ER
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which has ribosomes and makes protein to be sent outside the cell?
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rough ER
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what does the golgi apparatus do?
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make protein and packages the in vesicles.
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what are vacuoles?
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membrane bound compartments for temporary storage.
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____ digest worn organelles, food, engulfed viruses/bacteria.
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lysosomes
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cell organelles that capture light and energy and convert it into chemical energy
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chloroplast
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mitochondria is also known as the.?
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the power house of the cell.
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membrane bound organelle in the cell that transform energy for the cell.
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mitochondria
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the cytoskeleton....
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forms framework for the cell like a skeleton.
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the cytoskeleton is made up of..?
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micro tubles and micro filaments
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what moves short and quick in circles to move cell.
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cilia
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which moves with a whip like motion and are not long.
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flagella
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plant organelles that store starches or lipids or that contain pigments?
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vacuoles
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clear fluid inside a cell.?
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cytoplasm.
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