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BIOLOGY MODULE 2 - Topic 1 - Cells
Terms in this set (46)
Something in a biological specimen that is not present naturally but has been introduced or produced during a procedure.
A strong but flexible layer that surrounds some cell types.
Component of the cytoskeleton of most eukaryotic cells, composed of microtubules.
Site of the light reactions of photosynthesis.
Organelles responsible for photosynthesis in plant cells. They contain chlorophyll pigments.
Uncondensed DNA in a complex with histones.
Structures of condensed and coiled DNA in the form of chromatin. They become visible under the light microscope when the cells are preparing to divide.
Microscopic, hair-like structures that extend outward from the surface of many animal cells. It keeps the sensitive internal passageways free of mucus or foreign particles and receives sensory information for the cell.
Internal fluid of cells composed of cytosol (water, salts and organic minerals), organelles and cytoskeleton.
Network of fibres in the cytoplasm of a eukaryotic cell.
Membrane system of folded sacs and interconnected channels that serves as a site for protein and lipid synthesis.
Multicellular eukaryotic organisms like animals, plants and fungi and single celled protoctista.
Cells with a nucleus and other membrane bound organelles.
A process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.
They are found in all three domains of the living world: bacteria, archaea, and eukaryote, they are a whip-like structure that allows a cell to move.
Organelle in most eukaryotic cells formed from an interconnected network of flattened cisternae. Plays a role in modifying and packaging proteins into vesicles.
Specialised vesicle containing hydrolytic enzymes for the breakdown of waste materials within a cell.
The number of times larger an image appears compared to the size of the object.
Folded region of prokaryotic cell plasma membrane which contains all the membrane bound proteins for photosynthesis and respiration.
Allows for movement, structure, and transportation across a cell and is made of actin.
Photograph or digital image taken through a microscope.
Makes up the cytoskeleton along with actin filaments, intermediate filaments.
Site of aerobic respiration in eukaryotic cells.
Messenger ribonucleic acid that serve as temporary copies of the information found in DNA.
Double layered membrane that surrounds the nucleus.
Area within cytoplasm where DNA is positioned.
Round body located inside the nucleus of a eukaryotic cell. It is not surrounded by a membrane but sits in the nucleus.
Contains most the cell's genetic material, organized as DNA molecules, along with a variety of proteins, to form chromosomes.
What bacteria cell walls are made of.
Small hair like structures that allow bacteria to adhere to each other or to host cells.
The cell surface membrane.
Small loop of DNA.
Gaps in the cell wall containing cytoplasm that connects 2 cells.
Single celled prokaryotic organisms from the kingdom Prokaryotae.
Cells with no membrane bound organelles or nucleus.
The clarity of an image (the higher the resolution the higher the clearer the image), measured by the ability to distinguish between 2 points.
Small organelle consisting of RNA and proteins, found in large numbers in the cytoplasm of prokaryotic and eukaryotic cells.
Rough Endoplasmic Reticulum
System of membranes enclosing fluid filled space coated with ribosomes.
Waxy protective cuticle on some prokaryotic cells.
Smooth Endoplasmic Reticulum
System of membranes enclosing fluid filled cavities called cisternae.
Network of microtubules that forms within a dividing eukaryotic cell, both during mitosis and meiosis.
Dyes used in microscopy sample preparation to increase contrast or identify specific components.
Membrane surrounding the vacuole, separating the vacuolar contents from the cytoplasm in a cell.
Responsible for movement.
A space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
Bubblelike membranous structure that stores and transports cellular products, and digests metabolic wastes within the cell.
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