Matter
Matter
Water/pH
Macromolecules
Macromolecules
100
Positively charged particle in the nucleus of an atom.
What is a proton?
100
The subatomic particle is found in the nucleus and has a neutral charge.
What is a neutron?
100
The property of a molecule to have slightly negative and slightly positive sides.
What is polarity?
100
This atom is the very versatile, and is contained in all organic molecules.
What is carbon?
100
Monomers, or individual units of macromolecules, form these.
What are polymers?
200
The basic unit of matter.
What is an atom?
200
An atom that has the same number of protons and electrons, but different numbers of neutrons.
What is an isotope?
200
The ability of water to stick to other water molecules.
What is cohesion?
200
When organic macromolecules come together to form polymers, this substance forms as the chemical reaction which joins them occurs.
What is water?
200
These include simple and complex sugars. They are a source of available energy in organisms, and are structural molecules in plants.
What are carbohydrates?
300
Negatively charged particle that orbits the nucleus of an atom.
What is an electron?
300
These substances lower the energy needed to start a reaction. The enzyme catalase is an example of a biological version.
What are catalysts?
300
The ability of water to stick to another surface - it is important for trees obtaining water.
What is adhesion?
300
This macromolecule stores huge amounts of energy and can be found in cell membranes. They also include waxes and oils.
What are lipids?
300
These are composed of a glycerol backbone and three fatty acids.
What are lipids?
400
A compound in which atoms are held together by covalent bonds.
What is a molecule?
400
Adding acid decreases this, and increases this.
What is decreases 'pH' and increases hydrogen ion concentration
400
A pH measurement of 12.2.
What is basic?
400
Genetic information is stored in these macromolecules.
What are nucleic acids (DNA and RNA)?
400
These are composed of chains of amino acids. The order of the amino acids determines what type is made.
What are proteins?
500
List as many signs of a chemical reaction as you can.
What is color change, change in temperature, energy released or absorbed, formation of solids, release of odor?
500
These are essential to life, as they lower the activation energy needed for important chemical reactions to occur in the body.
What are enzymes?
500
List at least four reasons why water is necessary/important for life.
High specific heat, evaporative cooling, universal solvent, cohesion/adhesion, living things are composed largely of water, polarity, floats when freezes, important for digestion/excretion... many more!
500
The difference between a saturated and unsaturated fats.
What is 'saturated fats contain no double bonds and are full of carbon, while unsaturated fats are not'?
500
This building block of a protein has both an amino group as well as a carboxyl group. The monomers join together to make a polymer at their amino-carboxyl groups.
What are amino acids?
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