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BIO 101 Exam #1 Questions And Accurate Answers Latest Update 100% Pass Guaranteed
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BIO 101 Exam #1 Questions And Accurate Answers LatestUpdate 100% Pass Guaranteed
What is Biology? -Answer Study of life; includes everything
-biomolecular biology and technology have brought around a new era for biology
What are the major characteristics of Life? -Answer 1) reproduction (DNA (deoxyribose
nucleic acid); double helix shape; stores genetic info)
2) cellular repsiration (used to creat energy) (metabolism; need it to perform basic
functions of life; food (carbs, proteins, lipids/fats, vitamins/minerals)
3) adapt/evolve over long periods of times characteristics of organizations
changed
4) grow and mature DNA dictates the "blueprint"
5) organization highly specific; organization of organs/structure
6) cells simplest units of life; only require one to be classified as living
6) cells basic units of life; require only one to be classified as living
7) react reaction to stimuli light, touch, heat, etc. ; require to survive
What is a cell? - Answer - basic units of life
,-not always visible, first viewed by use of microscope
- Hook discovered cells in 1655
- first cells were viewed from the tree cork
- theory wasn't generally accepted because it was hard to try and be able to convince
people of this huge change
What is cell theory? - Answer - proposed in 1800's
- lowest level of structure performs all characteristics of life
- arise from previously existing cells
metabolism- what is it? - Answer - breaking down of energy; for food
- best- glucose
- C6H12O6-glucose formula
- broken (catabolic reaction) down to carbon dioxide and water [ CO2 + H2O]
Difference between anabolic and catabolic reactions? - Answer - anabolic- building up
of molcules, etc.
- ie: anabolic steroids-build up muscle
- catabolic- breaking down of molecules
Bean Beetle Lab - Answer - learn how to determine if alive or dead
, - if alive, beetles should be giving off carbon dioxide
- if dead, bean beetles may be giving off CO2 but only
because the decomposition process
- CO2 measured in ppm
- calculate amount per bean beetle
x (ppm)/ number of bb = ppm/bb
every 15 mins = [x / # of bb] / 15
every 1 hour = [x/ #of bb] x 4
every sec = [x / # of bb] / 60
- used loggerpro prgm; used CO2 probe
Are viruses alive? - Answer - depends on what you argue
- relies on a host cell to reproduce
What is science? - Answer - latin "to know"
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