Cell Parts and Function
Terms in this set (15)
A selectively-permeable phospholipid bilayer forming the boundary of the cells; Controls what enters and leaves the cell
The aqueous part of the cytoplasm within which various particles and organelles are suspended; Contains thousands of enzymes involved in intermediate metabolism and crowded with ribosomes making proteins.
Control center of the cell; contains DNA and RNA and responsible for growth and reproduction; A cell structure that contains nucleic acids, the chemical instructions that direct all the cell's activities.
consists of rRNA and protein molecules, which make up two subunits; Assist in the development of amino acids; packets of RNA and proteins that play crucial role in prokaryotic and eukaryotic cells; site of protein synthesis; has two parts:large subunit, and small subunit
"powerhouse of the cell" has a lipid bilayer double membrane, with the outer membrane permeable and inner folded into cisternae; An organelle in eukaryotic cells that serves as the site of cellular respiration; uses oxygen to break down organic molecules and synthesize ATP. It is responsible for extracting energy from nutrients.
A structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food; Found in plants and algae, are the sites of photosynthesis
A small, round cell structure containing chemicals that break down large food particles into smaller ones; Break down and recycle macromolecules; Has digestive enzymes that allow it to digest food particles, wastes, cell parts, and foreign invaders.
A fluid filled organelle that stores enzymes or waste; Larger in plant cells, used for storage of water, food, waste, ect. May carry out digestion or water balance
Does not have ribosomes attached to it. Responsible for producing lipids, sterioids, regulation of calcium levels in muscle cells; Function: Contains enzymes that make lipids, metabolize carbs and modify toxic chemicals (liver cells have a large number of smooth ER-- the liver breaks down lipids in food!!
An organelle in eukaryotic cells consisting of stacks of flat membranous sacs that modify, store, and route products of the endoplasmic reticulum.; A system of membranes that modifies and packages proteins for export by the cell
An organelle that contains the enzyme catalase. This enzyme deoxides harmful substances that enter the cell into unharmful substances; Contain oxidase enzymes that detoxify alcohol, hydrogen peroxide, and other harmful chemicals.
A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement; A network of microtubules, microfilaments, and intermediate filaments (protein fibers) that branch throughout the cytoplasm and serve a variety of mechanical and transport functions.
A protective layer external to the plasma membrane in plant cells, bacteria, fungi, and some protists. In plant cells, the wall is formed of cellulose fibers embedded in a polysaccharide-protein matrix;
A rigid structure that surrounds the cell membrane and provides support to the cell, limits water uptake.
A network of interconnected membranous sacs in a eukaryotic cell's cytoplasm; covered with ribosomes that make membrane proteins and secretory proteins (assembles proteins);
Covered in ribosomes and is responsible for the synthesis and transport of proteins and glycoproteins.
Channels between adjacent plant cells; , An open channel in the cell wall of plants through which strands of cytosol connect from adjacent cells