The Cell
Which of the following statements is not included in Cell Theory?
a)All cells come from pre-existing cells
b)All living things are made of cells
c) Cells are the basic unit of structure and function of life
d) Cells are able to duplicate
d) cells are able to duplicate
Which organelle has its own unique DNA?
Mitochondria
Describe the structure of the cell membrane
phospholipid bilayer, phosphorous head and lipid tails
Passive and Active. Passive does not require energy, active does.
Which transport protein changes shape to aid in movement across the cell membrane?
Carrier Protein
What is the proper name for cells that contain a complex membrane bound organelle?
Eukaryotic
what is the structural difference between the smooth E.R and the rough E.R?
The rough E.R contains ribosomes
Which portion of the membrane is hydrophilic?
phosphate head
Use the concentration gradient to describe diffusion.
Diffusion is the movement of molecules across a concentration gradient from an area of high concentration to an area of low concentration.
When is active transport required?
When a cell needs to move materials against a concentration gradient. From an area of low concentration to an area of high concentration
What category of cell does bacteria fall under?
Prokaryotic
What is the golgi body responsible for?
The golgi body is responsible for processing and packaging proteins for transport.
Semi or selective
How does osmosis differ from diffusion?
osmosis is the diffusion of water. Osmosis is a specific type of diffusion.
What is the molecular ratio of movement in and out of the cell when using the sodium potassium pump?
3 sodium in and 2 potassium out
Which scientist is credited with naming "the cell"
Robert Hooke
Which organelle is responsible for breaking down old cell parts and fighting off pathogens?
Lysosomes
What is the name for molecular motion caused by molecules bumping into each other?
Brownian Motion
Isotonic
What form of energy is required to initiate active transport?
ATP
Describe one difference between plant and animal cells
The presence of a cell wall, chloroplast, the function of a vacuole
What is the name of the structure that separates the cell's interior and exterior, and controls the movement of material into and out of the cell?
Cell membrane
The cell membrane is always trying to maintain a state of balance inside and outside the cell, that state is known as?
homeostasis
What type of passive transport uses transport proteins to aid in movement?
Facilitated Diffusion
How is ADP relevant to the sodium potassium pump?
The compound formed after a phosphate is used for energy from ATP.