Biol 240 Exam questions well answered to pass
updated
1. What did Rober Hooke contribute -First description of
mi- crobes
(fungi/mold fruit- ing
bodies)
2. What did Anton van Leeuwenhoek do? Improved microscope len
3. Basics for Life? -metabolism
-growth
-reproduction
4. How do heterotrophs obtain energy? Ingest organic molecules
5. How do autotrophs obtain energy? Produce organic
mole- cules
6. What are 2 main ways organic molecules are -fermentation
broken down by microbes? -aerobic respiration
7. What are the four macronutrients in microbes? -polypeptides (proteins)
-nucleic acid (DNA, RNA)
-lipids
-polysaccharides (sugar)
8. What is the most abundant Polypeptides (Protein)
macronutrient in mi- crobes?
9. What is the least abundant DNA
macronutrient in mi- crobes?
10. What are the 3 major groups on phylogenetic tree? Archaea
Eukarya
Bacteria
1/
65
,Biol 240 Exam questions well answered to pass
updated
11.
1/
65
, Biol 240 Exam
Study online at
https://quizlet.com/_g6wvyy
What were some conditions of the earth during
-Little oxygen
the origin of life? -High temperature
-High CO2
-Earth surface was a
chemical soup- reducing
atmosphere and lots of
electrons
12. Who conducted the experiment that Stanley Miller and Harold Urey
simulated the origin of life?
-They simulated the earths
13. In general, how did Stanley Miller and Harold primitive ocean and
Urey simulate the origin of life in 1950? clouds
-They had a primitive
atmosphere made from
methane, hydrogen am-
monia and water vapor
-They sparked the atmos-
phere with electricity
sim- ulating lightning
-Ability to store genetic in-
14. What were the 3 requirements of early formation
life talking about? -Able to catalyze biochem-
ical reactions
-Has a way to separate cell
interior from external
en- vironment
15. What are micelles? Early forms of plasma
16. Carl Woese
, Biol 240 Exam
Study online at
https://quizlet.com/_g6wvyy
Who discovered Archaea was not bacteria and a
third domain of life by RNA analysis?
17. Is RNA or DNA more stable? Double stranded
DNA is more stable
than RNA
18. Name some features of early life (early microbes) giv- -membrane
bound
en in the lecture -use ATP as chemical ener- gy
-Anaerobe
-Fixes N2
-H2 dependent
19. How did the earths oxygen levels increase? Cyanobacteria produce
oxygen as a by-
prod- uct, eventually
raising the earth's
oxygen levels
20. What is the name of the organisms that are fossilized Stromatolites
and in the microbial fossil records
21. What is modern RNA DNA transcribed into
RNA (mRNA-
messenger RNA)
-mRNA will be
translated into
proteins
22. Origin of eukaryotes- explain endosymbiotic theory Primitive
prokaryotic mi-
crobes ingested
others, creating a
updated
1. What did Rober Hooke contribute -First description of
mi- crobes
(fungi/mold fruit- ing
bodies)
2. What did Anton van Leeuwenhoek do? Improved microscope len
3. Basics for Life? -metabolism
-growth
-reproduction
4. How do heterotrophs obtain energy? Ingest organic molecules
5. How do autotrophs obtain energy? Produce organic
mole- cules
6. What are 2 main ways organic molecules are -fermentation
broken down by microbes? -aerobic respiration
7. What are the four macronutrients in microbes? -polypeptides (proteins)
-nucleic acid (DNA, RNA)
-lipids
-polysaccharides (sugar)
8. What is the most abundant Polypeptides (Protein)
macronutrient in mi- crobes?
9. What is the least abundant DNA
macronutrient in mi- crobes?
10. What are the 3 major groups on phylogenetic tree? Archaea
Eukarya
Bacteria
1/
65
,Biol 240 Exam questions well answered to pass
updated
11.
1/
65
, Biol 240 Exam
Study online at
https://quizlet.com/_g6wvyy
What were some conditions of the earth during
-Little oxygen
the origin of life? -High temperature
-High CO2
-Earth surface was a
chemical soup- reducing
atmosphere and lots of
electrons
12. Who conducted the experiment that Stanley Miller and Harold Urey
simulated the origin of life?
-They simulated the earths
13. In general, how did Stanley Miller and Harold primitive ocean and
Urey simulate the origin of life in 1950? clouds
-They had a primitive
atmosphere made from
methane, hydrogen am-
monia and water vapor
-They sparked the atmos-
phere with electricity
sim- ulating lightning
-Ability to store genetic in-
14. What were the 3 requirements of early formation
life talking about? -Able to catalyze biochem-
ical reactions
-Has a way to separate cell
interior from external
en- vironment
15. What are micelles? Early forms of plasma
16. Carl Woese
, Biol 240 Exam
Study online at
https://quizlet.com/_g6wvyy
Who discovered Archaea was not bacteria and a
third domain of life by RNA analysis?
17. Is RNA or DNA more stable? Double stranded
DNA is more stable
than RNA
18. Name some features of early life (early microbes) giv- -membrane
bound
en in the lecture -use ATP as chemical ener- gy
-Anaerobe
-Fixes N2
-H2 dependent
19. How did the earths oxygen levels increase? Cyanobacteria produce
oxygen as a by-
prod- uct, eventually
raising the earth's
oxygen levels
20. What is the name of the organisms that are fossilized Stromatolites
and in the microbial fossil records
21. What is modern RNA DNA transcribed into
RNA (mRNA-
messenger RNA)
-mRNA will be
translated into
proteins
22. Origin of eukaryotes- explain endosymbiotic theory Primitive
prokaryotic mi-
crobes ingested
others, creating a
