Characteristics of life
Necessities of life
chemistry of cells
Types of organic molecules
wild card
100
What is the total sum of all chemical activities performed by an organism?
metabolism
100
What is an organism's home called?
habitat
100
what makes an inorganic compound inorganic?
it does not contain carbon
100
What are the four kinds of organic molecules?
protein, nucleic acid, lipids, carbohydrates.
100
What controls cell structure and function
DNA
200
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.
200
What is the difference between aerobic and anaerobic respiration?
anaerobic respiration does not require oxygen.
200

carrier proteins that are always open are a form of passive transport


true or false

true

200
How many different amino acids are there?
20
200
A single stranded DNA is called what?
RNA
300
the phrase "the cat had a litter of kittens" would reflect which characteristic of life?
reproduction
300
Air is a mixture of what three gases?
nitrogen, oxygen, carbon dioxide
300
What are the three subatomic particles?
proton, neutron, electron
300
What makes lipids so special?
they do not mix with water
300

Which lipids are solid at room temperature?

Saturated Fats

400
name all six characteristics of life
cells, sense and respond to change, reproduce, have DNA, use energy, grow and develop.
400
What % of living organisms is water?
70%
400
explain the difference between a molecule and a compound?
a compound is a molecule make up of different kinds of atoms.
400
Carbohydrates are used for...
energy sources
400
If we combine two monosaccharides together, what do we get?
Disaccharideses
500

Proteins have a very complex structure.  Place the following in order, indicating the cause of

the primary (1°), secondary (2°), tertiary (3°) and quaternary (4°) structures.   (2pts)


_______ binding between different regions of the molecule, causing folding back and twisting

_______ hydrogen bonding between different parts of a polypeptide, creating sheets or helixes

_______ multiple polypeptides bound together

_______ sequence of amino acids

Proteins have a very complex structure.  Place the following in order, indicating the cause of

the primary (1°), secondary (2°), tertiary (3°) and quaternary (4°) structures.   (2pts)


_____3__ binding between different regions of the molecule, causing folding back and twisting

__2_____ hydrogen bonding between different parts of a polypeptide, creating sheets or helixes

__4_____ multiple polypeptides bound together

__1_____ sequence of amino acids

500

An essential amino acid is what?

cannot be synthesized by the body and must be ingested with food

500

Membranes control the entrance of materials into cells.  What kinds of molecules can pass through a cell membrane most easily?

small and hydrophobic

500

Purpose of cellulose, glycogen, and starch.

I.cellulose  (C.)                    

                    A. energy storage molecule in humans

II.glycogen  (A.)                    

                                    B. energy storage in plants

III.starch  (B.)                        


C.  provides structure in plants

500

Sodium (Na) and Chlorine (Cl) easily bind together in an ionic bond because ______.

the outer electron shell of Na is almost empty and the outer shell of Cl

      is almost full, facilitating the transfer of an electron from Na to Cl.

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