Structure
A tiny cellular structure that carries out a specific function necessary for the cell to survive
What is an organelle?
The Study of Cells
What is Cytology?
The random movement of molecules from an area of high concentration to an area of low concentration (with a concentration gradient) until its concentration becomes equal throughout the area (reaches equilibrium)
What is diffusion?
Type of cell division that results in two identical daughter cells
What is mitosis?
What is ingestion?
Double membrane-bounded organelles in which nutrients are converted into energy
What is the mitochondria?
A cell that has no nucleus or other distinct, membrane-bound organelles
What is a Prokaryote?
The diffusion of water through a semipermeable membrane from an area of high water concentration (low solute concentration) to low water concentration (high solute concentration).
What is osmosis?
The time interval between cellular divisions
The ability to release energy from the breakdown of food molecules
What is respiration?
Non-membrane-bounded organelles responsible for protein synthesis.
What is a ribosome?
Person who observed slices of cork and named "cells"
Who is Robert Hooke?
A membrane that allows some molecules to pass through but does not allow other molecules to pass through
What is a semipermeable membrane?
The process in which the cytoplasm is divided into two cells
What is cytokinesis?
The ability to distribute or circulate molecules from one part of a cell to another
What is transport?
The organelle in animal cells responsible for hydrolysis reactions that break down proteins, carbohydrates, and some lipids.
What is a Lysosome?
Person who concluded that all animals are made of cells
Who is Theodor Schwann?
The rupturing of a cell due to excess internal pressure
What is cytolysis?
Spiral strands of protein molecules that form tubelike structures
What are microtubules?
The ability to remove soluble metabolic waste from the cell
What is excretion?
An organelle composed of an extensive network of folded membranes that performs several tasks within a cell.
What is the endoplasmic reticulum?
Person who concluded all plants are made of cells.
Who is Matthias Schleiden?
The process of moving particles out of the cell by means of vesicle membranes fusing with the cell membrane
What is exocytosis?
Paired organelles found in animal cells that organize fibers required for cell division
What are centrioles?
The ability to respond to stimuli
What is irritability?
Non-pigmented plastids that store starches or oils
What is a leucoplast?
Person who concluded that all cells come from preexisting cells
Who is Rudolf Virchow?
The endocytic process by which a cell engulfs large, solid particles or cells
What is Phagocytosis?
A small region near the nucleus that is the main organizing site for microtubules and contains the centrioles in animal cells
What is the centrosome?
The ability to remove non-soluble, undigested waste from the cell
What is egestion?