1.5 the origin of cells

Question 1

Endosymbiotic theory

Answer 1

A theory that some eukaryotic organelles, such as mitochondria and chloroplasts, originated as free-living prokaryotes that invaded primitive eukaryotic cells.

Question 2

Genetic code

Answer 2

A nearly universal sequence of nucleotides in DNA that determines the specific amino acid sequence in the synthesis of proteins.

Question 3

Louis Pasteur

Answer 3

French scientist that proved, among other things, that the emergent growth of bacteria in nutrient broths is due to biogenesis, not spontaneous generation.

Question 4

Spontaneous generation

Answer 4

Old theory that believed in the formation of living organisms from non-living matter.

Question 5

Sterilization

Answer 5

Technique used for the elimination of microbiological organisms to achieve a sterile microbial environment.

Question 6

Endosymbiont

Answer 6

A cell which lives inside another cell with mutual benefit

Question 7

Biogenesis

Answer 7

Cells can only be formed by the division of pre-existing cells

Question 8

Abiogenesis

Answer 8

A theory that the first living cell arose from non-living matter.