Chapter one and two
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Chapter one and two
What is the cell theory?
Building block of all plants and animals
it is the smallest functioning unit of life
exist only through divison of pre-exsiting cells
maintain own homeostasis
what is the fluid that surrounds the cell on the outside?
how thick is the cell membrane?
What is a selective barrier and isolates the cytoplasm from extracellular fluid?
What forms complex molecules with proteins and lipids? It was serves as a lubricant, adhesive, and identifiers for the cell?
Which movement requires ATP and which movement doesn't?
Passive-does not require ATP
What is movement of solute from a high concentration to a low concentration?
What represents the difference between high and low concentration?
What is a passive process where water is moved from a higher solute concentration?
If electrons are presents, will atoms read with other atoms?
No they won't
Atoms can bond together by sharing, gathering, or losing electrons through chemical reactions, making this a?
Sharing of one pair of electrons is considered a what bond?
single covalent bond
Sharing of two pairs of electrons is considered to be what kind of bond?
double covalent bond
Which bond will bond with anything, too weak to create molecules?
What are the three types of chemical reactions?
Dehydration, synthesis, exchange
What type of chemical reaction breaks molecules into small parts? AB-A+B
Enzymes belong to a class of what?
If someone has a pH balance higher than 7 this is considered to be what?
If someone has a pH balance lower than 7 this is considered to be what?
Reactions that release energy are?
Reactions that absorb energy are?
What organic compound is made up of carbon, hydrogen, oxygen, and has a ratio of 1:2:1?
Liver and muscle store _____ and when needed it is broken into glucose.
When not needed liver and muscle tissue abosorb glycogen to make a _____.
Disaccharides and polysaccharides are examples of what?
Most lipids are _____in water?
What is the most common steroid?
_____ is composed of carbon, hydrogen, oxygen, and nitrogen. It is made up of chains of amino acids.
Nucleic acids are large organic molecules that store and process information, what is the two types of nucleic acids?
The most important high-energy compound of the body is?
Which of the nucleic acids drives the manufacture of proteins?
What are negatively charged particles in an atom called?
Which type of chemical bond results when electrons are "shared"
What type of reaction is "catabolism"
What do enzymes do?
Speed up a chemical reaction without the harsh affects produced by activation energy. They also belong to a class called catalyst.
What is the name for a chain of simple sugars?
The number of protons in an atom is considered to be its what?
What is the average total number of protons and neutrons of a particular element?
Atomic weight or Atomic mass