the basic structural, functional and biological unit of all known living organisms

a scientific theory that describes the properties of cells, which are the basic unit of structure in all organisms and also the basic unit of reproduction.

compound light microscope

instrument that uses light and a series of lenses to magnify objects in steps.

instrument that uses a beam of electrons instead of light to magnify objects.

any organism whose cells contain a nucleus and other structures enclosed within membranes.

membrane bound structures with a particular role in a eukaryotic cell.

a group of organisms whose cells lack a membrane-bound nucleus.

structural model of the plasma membrane where molecules are free to move sideways within a lipid bilayer.

f lipids that are a major component of all cell membranes as they can form lipid bilayers.

selective permeability

cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell.

move needed substances or waste materials through the plasma membrane.

the outer protective layer of a cell

the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water.

combination or complex of DNA and proteins that make up the contents of the nucleus of a cell.

an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body.

gel-like substance enclosed within the cell membrane

cellular scaffolding or skeleton contained within a cell's cytoplasm

endoplasmic reticulum

type of organelle in the cells of eukaryotic organisms that forms an interconnected network of flattened, membrane-enclosed sacs or tubes

long, thread-like appendages which provide some live single cells with the ability to move, motility.

the distribution and shipping department for the cell's chemical products.

the cell's waste disposal system and can digest some compounds.

Any of the minute fibers located throughout the cytoplasm of cells, composed of actin and functioning primarily in maintaining the structural integrity of a cell.

a hollow cylindrical structure in the cytoplasm of most cells, involved in intracellular shape and transport

are organelles, or parts of a cell. Their main job is energy conversion.

cellular structure present in the nucleus of a eukaryotic cell.

any member of a family of organelles found in the cells of all living plants and algae

cell organelles that consist of RNA and proteins.

A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste.

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Chapter 7 key terms

Term	Definition
cell	the basic structural, functional and biological unit of all known living organisms
cell theory	a scientific theory that describes the properties of cells, which are the basic unit of structure in all organisms and also the basic unit of reproduction.
compound light microscope	instrument that uses light and a series of lenses to magnify objects in steps.
electron microscope	instrument that uses a beam of electrons instead of light to magnify objects.
eukaryote	any organism whose cells contain a nucleus and other structures enclosed within membranes.
nucleus	center of the cell.
organelle	membrane bound structures with a particular role in a eukaryotic cell.
prokaryote	a group of organisms whose cells lack a membrane-bound nucleus.
fluid mosaic model	structural model of the plasma membrane where molecules are free to move sideways within a lipid bilayer.
phospholipid	f lipids that are a major component of all cell membranes as they can form lipid bilayers.
plasma membrane	cell wall
selective permeability	cell membrane has some control over what can cross it, so that only certain molecules either enter or leave the cell.
transport proteins	move needed substances or waste materials through the plasma membrane.
cell wall	the outer protective layer of a cell
chlorophyll	the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water.
chloroplast	conduct photosynthesis
chromatin	combination or complex of DNA and proteins that make up the contents of the nucleus of a cell.
cilia	an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body.
cytoplasm	gel-like substance enclosed within the cell membrane
cytoskeleton	cellular scaffolding or skeleton contained within a cell's cytoplasm
endoplasmic reticulum	type of organelle in the cells of eukaryotic organisms that forms an interconnected network of flattened, membrane-enclosed sacs or tubes
flagella	long, thread-like appendages which provide some live single cells with the ability to move, motility.
Golgi apparatus	the distribution and shipping department for the cell's chemical products.
lysosome	the cell's waste disposal system and can digest some compounds.
microfilament	Any of the minute fibers located throughout the cytoplasm of cells, composed of actin and functioning primarily in maintaining the structural integrity of a cell.
microtubule	a hollow cylindrical structure in the cytoplasm of most cells, involved in intracellular shape and transport
mitochondria	are organelles, or parts of a cell. Their main job is energy conversion.
nucleolus	cellular structure present in the nucleus of a eukaryotic cell.
plastid	any member of a family of organelles found in the cells of all living plants and algae
ribosome	cell organelles that consist of RNA and proteins.
vacuole	A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste.

Created by: thomascooper

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