Tiny cell structures that carry out specific functions are called ______
organelles
What does Selectively Permeable mean?
When some substances can pass through and others cannot
What function to Ribosomes have
Protein centers found throughout the cell
Who was first to discover cells
Robert Hooke
An instrument that makes smaller objects look larger
Microscope
What made it possible to discover adn study cells?
The Invention of Microscopes
What is cytoplasm
Gel-like fluid that is found throughout the cell
This organelle breaks down certain material in the cell
Lysosome
This organelle controls what substances come in and out of the cell
Cell Membrane
Specific part found only in animal cells
lysosome
The Powerhouse of the cell is called ___________
Mitochondria
What do the Golgi Bodies do?
Package proteins to be sent to different areas of the cell
This organelle provides structure and protects plant cells
Cell Wall
What are the three parts to cell theory
1. Cells are the basic structure and function in living things. 2. Cells come from cells . 3 All living things are composed of cells.
A microscope that contains more than one lens
Compound Microscope
Movement of materials through a cell membrane WITHOUT using cellular energy
Passive Transport
When molecules move from high concentration to areas of lower concentration is called?
Diffusion
The basic units of structure and function in living things are called
Cells
The diffusion of water molecules across a selectively permeable membrane is called?
Osmosis
What is one example of active transport?
Transport proteins, engulfing
Passageways that carry proteins and materials from one part of the cell to another are
Endoplasmic Reticulum
Storage areas in the cell that contain nutrients or water for the cell
Vacuoles
What is a Simple Microscope
A microscope that has one lens
In plant and animal cells, the "brain" controlling cellular activity is called _______
The Nucleus
Specific parts found only in plant cells? (2)
Cell Wall, Chloroplasts