Cell Theory
The cell theory grew out of the work of ________ and improvements in the microscope.
What is many scientist?
Cells have an ______ structure.
What is internal?
The ______ is a barrier that separates a cell from the external environment.
What is the Cell Membrane?
Molecules can move across the ___________ through passive transport.
What is the Cell Membrane?
Cells use ______ to transport materials that cannot diffuse across a membrane.
What is energy?
"Father of Microbiology" best known for his contribution to the improvement off the microscope.
Who is Anton van Leeuwenhoek?
The _______ stores genetic information.
What is the nucleus?
Cell membranes are composed of two ________ layers.
What is phospholipid?
What are the two types of passive transport?
What is diffusion , osmosis?
Does Passive transport require energy from the cell?
What is No?
What are the two cell types?
What is Eukaryotic and Prokaryotic?
______ link amino acids to form proteins.
What are Ribosomes?
What are the two major functions of the Cell Membrane?
What are forms a boundary between inside and outside of the cell, controls passage of materials?
What diffuses down a concentration gradient?
What are Molecules?
Cells use active transport to maintain ___________
What is homeostasis?
______ cells do not have membrane bound organelles.
What are Prokaryotic cells?
True or false: Lysosomes contain energy to digest materials?
What is False: enzymes ?
True or False: ALL molecules can cross the membrane?
What is False: Some can, while others cannot.
True or False: Passive transport does not require energy input from a cell.
What is True?
_________ is the process of taking material into the cell.
What is Endocytosis?
What are the three (3) Cell Theory Principles?
What are All organisms are made if cells?
All existing organisms are produced by other living cells?
The cell is the most basic unit of life?
Centrioles are tubes found in the centrosomes. What do they do?
What is helps divide DNA , forms cilia and flagella?
Chemical signals are transmitted across the cell membrane. Receptors bind with ligands and change shape. What are the two types of receptors?
What is intracellular receptor, membrane receptor?
What are the two different concentration differences that materials move across membranes because of.
What is High Concentration , Low Concentration
________ is the process of expelling material from the cell.
What is Exocytosis?