BIO 101 EXAM #1 (INTRO TO SCIENTIFIC
METHOD; CELLS AND MOLECULES) 2025
QUESTIONS WITH 100% VERIFIED ANSWERS!!
What is Biology? Answer - Study of life; encompasses 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) adaptation/evolve (over large periods of times traits of organizations)
modified
4) growth and development (DNA lays out the "plan")
5) organization (very specific; organization of organs/structure)
6) cells (basic building blocks of life; need only one to be considered living)
7) respond (response to stimuli (light, touch, heat, etc.); need in order to
survive)
What is a cell? Answer - - basic building blocks of life
- not always apparent; first seen with a microscope
- cells were discovered by Hook in 1655
- first cells discovered were from cork
, - theory wasn't generally accepted due to the challenge of trying to convince
people of this drastic change
What is cell theory? Answer - - proposed in 1800's
- lowest level of structure perfoms all chracteristics of life
- arise from previously existing cells
What is metabolism? Answer - - energy breakdown; needed for food
- glucose is the "best"
- C6H12O6 (formula for glucose)
- breaks (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
METHOD; CELLS AND MOLECULES) 2025
QUESTIONS WITH 100% VERIFIED ANSWERS!!
What is Biology? Answer - Study of life; encompasses 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) adaptation/evolve (over large periods of times traits of organizations)
modified
4) growth and development (DNA lays out the "plan")
5) organization (very specific; organization of organs/structure)
6) cells (basic building blocks of life; need only one to be considered living)
7) respond (response to stimuli (light, touch, heat, etc.); need in order to
survive)
What is a cell? Answer - - basic building blocks of life
- not always apparent; first seen with a microscope
- cells were discovered by Hook in 1655
- first cells discovered were from cork
, - theory wasn't generally accepted due to the challenge of trying to convince
people of this drastic change
What is cell theory? Answer - - proposed in 1800's
- lowest level of structure perfoms all chracteristics of life
- arise from previously existing cells
What is metabolism? Answer - - energy breakdown; needed for food
- glucose is the "best"
- C6H12O6 (formula for glucose)
- breaks (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
