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Flashcards in The Structure Of DNA Deck (18)
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1

Antiparallel

Parallel strands of DNA running in opposite directions

2

Base

Nitrogenous a substance that is a component of a DNA molecule

3

Chloroplast

Organelle in which the chemical reactions of photosynthesis occur

4

Chromosome

Structure that contains the genetic material of an organism encoded into DNA

5

Deoxyribose

Pentose sugar that is the component of a DNA molecule

6

DNA

Deoxyribonucleic acid, A molecule that holds the genetic code and all living organisms

7

Double helix

Three-dimensional shape of the DNA molecule

8

Eukaryotic

A cell with a discrete Nucleus,and membrane-bound nucleus and the chromosomes are linear rather than circular, found in animals, plants and fungi

9

Hydrogen bond

A weak Chemical link joining complimentary base pairs in DNA

10

Mitochondria

A cell organelle in which the aerobic stages of respiration occur.

11

Nucleotide

Component of DNA consisting of a deoxyribose sugar and phosphate group and base

12

Phosphate

A component of DNA nucleotide that is derived from phosphoric acid.

13

Plasmid

A circular loop of genetic material found in prokaryotic organisms and some yeasts

14

Prokaryotic

A cell with no discrete nucleus that is not membrane bound under DNA is free in The cytoplasm

15

Protein

Large molecule made up from a chain of amino acid is linked by peptide bonds, carbon,hydrogen, oxygen and nitrogen are used in the manufacture of proteins,they are made from subunits called amino acids

16

Sugar phosphate backbone

Strongly bonded strand of DNA

17

Globular proteins

Folded ball lake structures that are soluble,have weak intermolecular hydrogen bonding and are three-dimensional. Example: Amylase ( an enzyme that breaks down starch)

18

Fibrous proteins

Have thread-like sheet structures,are insoluble and have stronger intermolecular forces of attraction. Example: collagen (found in ligaments and tendons to give tensile strength)