Cell structure and Function
Terms in this set (58)
are selectively permeable, acts more like a fluid than a solid because its molecules are constantly moving, cell membranes surround all animal, plant, and bacterial cells; it is a bilayer composed mainly of phospholipids and proteins
nucleus does not have
endoplasmic reticulum and Golgi apparatus
substances that are produced in a cell and exported outside of the cell would pass through these __
cells like the muscle cells which require lots of energy would probably have many __
viruses,bacteria, and old organelles that a cell wants to get rid of are broken down in __
mitochondria store the energy released when they burn glucose as ____
the structures that synthesize proteins in cells are the ___
the folded inner membrane in mitochondria which increases the surface area for chemical reactions to take place is called the __
the dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is made is called the ___
the organelle that makes steroids in gland cells, regulates calcium in muscle cells, and a break down toxins in liver cells is the ___
nucleus, chloroplasts, and mitochondria
the cells organelles that are surrounded by double membranes and contain their own DNA are the __
phospholipids and proteins
two molecules are used to make cell membranes?
integral proteins with carbohydrates attached that stick out on the exterior surface of cell membranes and help recognize self.
eukaryotes have membranes around their nucleus and organelles and prokaryotes don't
one difference between eukaryotes and prokaryotes is _
vacuoles are _ in plant cells than in animal cells
stay away from
cell membranes form because the hydrophobic tails on phospholipids try to __ water.
which of the following organelles does the Endosymbiotic Theory suggest evolved from symbiotic relationships between prokaryotic cells?
Chloroplasts and cell wall
Name two organelles found in plant cells that are not seen in animal cells
no cell wall
tell one way you can tell this cell is not a plant cell
tell one way you can tell this is not a bacteria
all living things are made of cells, cells are the basic unit of life and function in an organism, and cells came from the reproduction of other cells.
english scientist who first saw "little boxes" in cork that he named cells
dutch microscope maker who was the first to observe living cells
botanist who concluded that all plants are made of cells
zoologist that concluded that all animals are made of cells
doctor who reasoned that cells come only from existing cells
american biologist who provided evidence for the Endosymbiotic Theory which explains the origin of chloroplasts and mitochondria
volume and surface area and surroundings
the _ of a cell increases faster than its _ so cells must divide instead of continuing to grow larger in order to be able to exchange materials with its _
small structure in a cell that performs a specific function is the _
sac of digestive enzymes
is covered by ribosomes and sends its modified proteins to the golgi apparatus
is found outside the cell membrane in plants and bacteria and provides support and protection
an organism like a green plant that can make its own food is an _
these sausage shaped organelles burn glucose and store the energy as ATP
the molecule used by cells to store genetic information
an organism with a nuclear membrane and organelles surrounded by membranes -
is surrounded by a double membrane, contains the cells DNA, and acts as the control center.
one or two long hair like structures that extend from the surface of cells and help move the cell.
gel-like material plus the cell's organelles
has several functions, including regulating calcium levels called cholesterol and producing steroid hormones in the ovaries and testes
the cell membrane is a lipid _ because the phospholipids line up in two rows and try and keep their hydrophobic tails away from water.
plasma membrane, selectively permeable
surrounds all cells is _ _ to control what enter and leaves the cell.
the function of ribosomes is to make _
plant and animal cells are both _
ER stands for _
does not have ribosomes attached
the thylakoid sacs are found inside a _ are where photosynthesis happens
have polar head and two non-polar tails and combine with protein to make cell membranes
looks like a stack of pancakes and packages molecules
proteins stick into the cell membrane that can part way or transport out of the wall.
space for storing food,water,enzymes, or waste
an organism that can't make its own food and gets its energy by eating other organisms
an organism like a bacteria with no nuclear membrane and no membrane bound organelles
is made of microtubules and microfilaments in the cytoplasm that provide support and give the cell its shape.
molecule used by mitochondria to store energy
are many short hair-like structures on the surface of a cell that help move the cell or substances past the cell
are log-like structures that appear during cell division in animal cells and pull the chromosomes apart.
the process in which a cell destroys itself for the good of the organism