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BIO 101 EXAM #1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 $16.49   Add to cart

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BIO 101 EXAM #1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

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BIO 101 EXAM #1 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

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  • August 4, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIO 101
  • BIO 101
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BIO 101 EXAM #1 QUESTIONS AND
ANSWERS WITH SOLUTIONS 2024
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

- 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"

- asking questions about nature

- believe questions can be answered



Steps of the Scientific Method - ANSWER 1) Make an Observation

2) Ask a question

3) Form a Hypothesis ("if, then" statement)

- accept (agree with conclusions)

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