Shared Flashcard Set

Details

Chapter 5 - The Structure of Matter
4 - Organic and Biochemical Compounds
36
Science
9th Grade
11/15/2010

Additional Science Flashcards

 


 

Cards

Term

(T-F) Organic compounds are ionically bonded.

Definition
False, they are covalently bonded
Term

What element does every organic compound contain? And they almost always contain what else?

Definition
Carbon, and almost always Hydrogen
Term

A _________ is a compound made up of only carbon and hydrogen atoms.

Definition
Hydrocarbon
Term

What is the simplest hydrocarbon compound?

Definition
Methane, CH4
Term

How many valence electrons do carbon atoms have to use for bonding?

Definition
Four
Term

Can carbon atoms form double and triple bonds by sharing electrons?

Definition
Yes
Term

What is the total number of bonds a carbon atom can make?

Definition
Four
Term

___________ are hydrocarbons that have only single covalent bonds. Give 2 examples.

Definition

Alkanes: Ethane C2H6 and

Propane C2H8

Term

When carbon atoms in an alkane line up they are called a _________, or ____________ for short.

Definition
Normal alkane or n-alkane
Term

A ______________formula shows how atoms bond.

Definition
Condensed Structural Formula
Term

What is the pattern that alkane chemical formulas usually follow?

Definition

The number of hydrogen atoms is always two more than twice the number of carbon atoms.

CnH2n+2

Term

__________ are hydrocarbons that have double carbon-carbon bonds.

Definition
Alkenes
Term
What is the simplest alkene?
Definition
Ethene (or ethylene) C2H4
Term

_________ are organic compounds that are made of oxygen as well as carbon and hydrogen.

Definition
Alcohols
Term

Alcohols have __________ or -OH groups.

Definition
Hydroxyl
Term

The formula names of most alcohols end in ________.

Definition
-OH
Term

Alcohol molecules behave similarly to _________ molecules. 

Definition
Water.
Term

A polymer has as minimum of how many monomers?

Definition
Five
Term

The original molecule in a polymer is called a ____________.

Definition
Monomer
Term
Poly means _______.
Definition
Many
Term
Name 3 natural polymers.
Definition
Rubber, Wood, cotton, wool, starch, protein, and DNA
Term

Most man-made polymers are either _____________ or _____________.

Definition
Plastics or fibers
Term

____________ is a man-made polymer that can be used as both plastics and fibers. Give examples of uses.

Definition

Polypropene or polypropylene

plastic containers like milk jugs, car parts, ropes, carpet and artificial turf.

Term

Polymers have varying degrees of elasticity depending on their ________. Give examples of elastic and non-elastic polymers.

Definition

Milk jug (polyethene), non-elastic

rubber band-elastic

Term

Name 3 biochemical compounds that are very important to living things.

Definition
Carbohydrates, proteins, and DNA
Term

_________ is a carbohydrate which provides energy to living things.

Definition
Glucose
Term

________ is a carbohydrate made of many bonded glucose molecules.  Plants store their energy as chains of this.

Definition
Starch
Term

Glucose that is not needed right away is stored as __________.

Definition
Glycogen
Term

___________ are polymers of amino acids.

Definition
Proteins
Term

Amino acids are made of __________, _________,_________,& _________. Some also contain ___________.

Definition

Carbon, Hydrogen, Oxygen, and Nitrogen

Some also contain Sulfur

Term

How many naturally occuring amino acids are found in proteins?

Definition
20
Term

DNA is a polymer made of organic molecules containing what 5 elements?

Definition
Carbon, hydrogen, oxygen, nitrogen, and phosphorus.
Term

DNA is in the form of paired chains or strands and has the shape of a twisted ladder known as a _____________.

Definition
Double Helix
Term

_________ is a protein that controls the use of glucose in your body.

Definition
Insulin
Term

Your body has (one or many)copies of your DNA.

Definition

Many, most cells in your body have a copy.

Supporting users have an ad free experience!