Unit 4 Vocab (quiz #1) - BioH
Terms in this set (29)
The units of structure and function in an organism.
Cells that DO have membrane bound organelles and a nucleus.
The brain of the cell - controls all of the cell's activities.
The small, specialized structures in the cell.
Cells that DO NOT have membrane bound organelles or a nucleus.
This part of the cell is selectively permeable - it is responsible for maintaining homeostasis by transporting things into and out of the cell.
The process that allows only some molecules to pass through the membrane while keeping others out.
The rigid structure found outside the plasma membrane in plant, fungi, and some bacterial cells...it is used for structure and to prevent the cell from bursting.
The pigment found in green plants.
The organelle that captures light energy from the sun and is found in plant cells.
Tangled masses of DNA found in the nucleus before cell division...this eventually condenses into chromosomes.
The short, hairlike projections of the cell membrane that are used in cell locomotion - cells usually have many of these.
The clear, jelly-like fluid inside the cell that holds the organelles in place and helps with transport.
Organelles used for transport - part has ribosomes, part does not.
Long projections that move in a whip-like motion and are used in cell locomotion - there are usually only 1 or 2 per cell.
Golgi Apparatus (body)
The packaging center of the cell.
Organelles that remove waste from the cell - contain digestive enzymes.
The powerhouse of the cell - makes energy.
Organelle found in the nucleus that makes ribosomes.
The organelle that is the site of protein synthesis (helps makes proteins).
Organelles used for storage of things such as food and water...plants usually have 1 large one, animals usually have many small ones.
Found in unicellular organisms, these organelles help maintain homeostasis by pumping excess water out of the cell.
Extensions of the cytoplasm that function in movement and sometimes nutrition. Amoeba and white blood cells have these.
The part that detects light in some cells. Example - Euglena has one of these so it knows when to be autotrophic and when to be heterotrophic.
The network of microtubules and microfilaments that help maintain structure in the cytoplasm.
The cylindrical proteins that make up the cytoskeleton.
The long, fibrous proteins that make up the cytoskeleton.
Organelles that store starch, lipids, or pigments in a plant cell.
The type of lipids that make up the cell membrane.