Unit 2 - Carbon based Molecles Review

Unit 2 - Living Systems
Carbon-based Molecules

DNA STRUCTURE AND COMPOSITION

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________________ is the branch of chemistry (biochemistry) that refers to the study of carbon-based molecules, including but not limited to all the biomolecules.

Organic Chemistry

• focuses on carbon-based compounds including carbohydrates, lipids, proteins, and the structure of DNA

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The DNA, which contains the genetic make-up of an organism is based on a carbon molecule. What does DNA stands for?

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Carbon, together with other nonmetals forms which type of chemical bond?

Naming Covalent Compounds

• in naming covalent compounds, the rules set by IUPAC must be followed

• covalent compounds uses prefixes indicating the number of atoms of an element is in a given chemical formula

• if the first atom is just one, we only write the name of that element, but if the second atom is just a single atom, a prefix is used

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Carbon monoxide is an unstable gas. It is also a carbon-based compound. Type the chemical formula of carbon monoxide.

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What is the name of a carbon-based compound with two carbon atoms and 4 hydrogen atoms?

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What is the chemical formula for nitrogen trioxide?

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What is the name of a compound with the formula CS₂?

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What is the name of a compound with the formula PF₅?

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What is the name of a compound with the formula CCl₄?

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What is the name of a compound with the formula PH₃?

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What is the name of a compound with the formula C₃N₄?

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What is the name of a compound with the formula SiO₂?

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What is the chemical formula for dinitrogen trichloride?

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What is the chemical formula for tetracarbon dioxide?

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What is the prefix we add to the name of a compound with 9 atoms?

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What is the prefix we add to the name of a compound with 6 atoms?

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Aside from deoxyribose sugar and the base pairs, what other compound is present in a DNA molecule?

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Cytosine pairs with...

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Thymine pairs with...

Multiple Choice

Which bases will pair with this side of DNA: ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Multiple Choice

What would the other side of this strand of DNA be:  AATCATGGA

• AATCATGGA
• TTAGTACCT
• AGGTACTAA

• GGATAUCUA

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What is the complimentary strand? TAGATTCGG

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What is the complimentary strand: AAGGAACGGTGATGTTATCA

Multiple Choice

T A G G A C T

The complementary strand is...

• T A G G A C T

• A T G G T G A

• A T C C T G A

• T T C C A G T

Multiple Choice

If a strand of DNA has 39% Cytosine, it has...

• 39% Adenine

• 39% Guanine

• 39% Thymine

• 39% combined Cytosine and Guanine

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GTT CAC

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CCC TGA

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TAG ATA GGG

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GAC CAT TAG

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ATG GCT

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CGG

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ATA

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GGC

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CAT

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TAC

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Construct the complementary strand of DNA for this sequence: GGTTACTA

Multiple Choice

GCA - AAG - CCC

• GTA - CCT - TTT

• CAA - CAA - GGG

• TTA - ATT - GCG

• CGT - TTC - GGG

Multiple Choice

TAT - TCC

• CAT - TAG

• ATA - AGG

• CAA - GGG

• GAG - AGG

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What type of sugar carries the nucleotides in a DNA sequence?

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Aside from deoxyribose and base pairs, what other compound is present in a DNA molecule?