1. Why might a cell need to divide?
A. A cell might need to divide because of cell size, tissue repair, general growth, replacing dead cells, and
reproduction. If the volume becomes too much for the surface area, then the waste products cant get out and i
1. How many valence electrons does Carbon have, what does that mean, and what science studies Carbon?
A. Carbon has 4 valence electrons, thus is can make 4 covalent bonds (which are stronger than ionic bonds). It
can also make single, double, and triple b
1.What is a force, what are the units, and how do you represent it?
A. A force is a push or pull that acts on a object. It can cause a resting object to move or it can accelerate a
moving object by changing the objects speed and direction. Force is measur
1.What is frame of reference and relative motion?
A. Frame of reference is a system of objects that are not moving with respect to one another.
Relative motion is movement in relation to a frame of reference. Example people on a platform
may notice a trai
1. What is the similarity and difference between a magnet and an electric charge?
A. You cant separate a magnet into one part; however, we can take out electrons and make it a positively
charged object. If a magnet is cut it makes 2 weaker magnets; magnet
1. What is work?
A. Force moves an object through a distance
2. How do you calculate Work?
A. Force x Distance Units in Joules (Newton Meters)
3. Why doesnt a waiter do work as he carries a tray?
A. He exerts a vertical force to hold up the tray, but is m
1. What is current and what does it equal to?
A. It is flow of charged particles measured in Amperes. It is equal to charge divided by time. It flows through a
2. What is voltage and what does it equal to?
A. It is electrical pressure difference
1. What are the basic properties of a cell?
A. A cell is complex yet highly organized.
A cell possesses genetic info they can use (DNA).
A cell can make more of itself (mitosis).
A cell and get and use energy (mitochondria).
A cell can engage in numerous
1. What are the elements, monomers, and polymers of nucleic acids?
A. Carbon, Hydrogen, Nitrogen, Oxygen, and Phosphorous make up Nucleic Acids, and there are 4 different
nucleotides that are the monomers for the polymers DNA and RNA.
2. What are the comp
1. Why is Carbon important, how many bonds does it make, and what kind of structures does it make?
A. Carbon is the basis of all life; all organic compounds are made of carbon. It has 4 unpaired valence
electrons, thus it can form 4 single bonds, double,