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Characteristics of life
Necessities of life
chemistry of cells
Types of organic molecules
wild card
100
What is a cell?
A membrane covered structure that contains all the necessary materials for life
100
name the four necessities of life
air, water, shelter, food
100
all matter is made up of what?
atoms
100
What are nucleic acids used for?
DNA and RNA
100
What % of the air we breath is Nitrogen?
78%
200
What is the total sum of all chemical activities performed by an organism?
metabolism
200
What is an organism's home called?
habitat
200
what makes an inorganic compound inorganic?
it does not contain carbon
200
What are the four kinds of organic molecules?
protein, nucleic acid, lipids, carbohydrates.
200
What controls cell structure and function
DNA
300
What is the difference between sexual and asexual reproduction?
sexual reproduction requires 2 parents, offspring are not identical to parents, and most animals and plants reproduce sexually.
300
What is the difference between aerobic and anaerobic respiration?
anaerobic respiration does not require oxygen.
300
define element
A substance made up of only 1 kind of atom
300
How many different amino acids are there?
20
300
A single stranded DNA is called what?
RNA
400
the phrase "the cat had a litter of kittens" would reflect which characteristic of life?
reproduction
400
Air is a mixture of what three gases?
nitrogen, oxygen, carbon dioxide
400
What are the three subatomic particles?
proton, neutron, electron
400
What makes lipids so special?
they do not mix with water
400
Which lipids are solid at room temperature?
Fats
500
name all six characteristics of life
cells, sense and respond to change, reproduce, have DNA, use energy, grow and develop.
500
What % of living organisms is water?
70%
500
explain the difference between a molecule and a compound?
a compound is a molecule make up of different kinds of atoms.
500
Carbohydrates are used for...
energy sources
500
If we combine two monosaccharides together, what do we get?
Disaccharideses