Microscopes and cells Study guides, Class notes & Summaries
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IB Biology Unit 1 Latest Update Graded A+
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IB Biology Unit 1 Latest Update 
 
Graded A+ 
 
Cell theory 3 main principles All organisms are composed of one or more cells 
cells are the smallest units of life 
all cells come from pre-existing cells 
 
7 functions of life (MR H GREN) 
metabolism 
reproduction 
homeostasis 
growth 
excretion 
 
response 
nutrition 
 
Paramecium unicellular membrane of the kingdom known as Protista. Look at powerpoint on 
isa247 to see how this organism displays the functions of life. 
 
chlorella single-cell...
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All Subject Study Guide for 7th Grade Comprehinsive (Physics, biology, chemistry, math, english, and spanish) Exam| Actual Questions and Answers 100% Correct| Latest Update 2024
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Homeostasis When organisms maintain a stable internal environment even 
when external conditions change 
Metabolism Combination of chemical reactions taking place within an 
organism 
Stimulus A signal to which an organism responds 
Biosphere Means "living planet" 
Robert Hooke Scientist who looked at cork through a microscope and gave 
the name to cells 
Light Microscope A type of microscope 
Can magnify 1000x 
Not as strong as other microscopes 
Uses light 
Scanning Electron Microscope A typ...
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Bio 250 Exam 1 Study Guide || All Questions Answered Correctly.
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Why is it important to study microbiology? 
 
A. Microorganisms are part of the natural environment and important to nutrient cycling. 
 
B. Microorganisms are vital to producing essential products. 
 
C. Microorganisms are excellent subjects on which to conduct scientific research. 
 
D. Microorganisms are linked to many human diseases. 
 
E. All of these. correct answers E 
 
Which of these groups are single-celled and possess a nucleus? 
 
 A. Fungi 
 B. Bacteria 
 C. Viruses 
 D. Protozoa 
 ...
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Bio principles Exam 2 – Brooks Latest Update Graded A+
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Bio principles Exam 2 – Brooks Latest 
 
Update Graded A+ 
 
Cytology the study of cells 
 
Robert Hooke - observed cork could float 
 
- discovered a honeycomb-like structure in a cork slice using a primitive compound microscope 
- only saw cell walls as this was dead tissue 
- coined the term "cell" for these individual compartments he saw 
 
Two types of microscopes: 1. Light Microscope 
2. Electron Microscope 
 
Light Microscope - light is focused on specimen by a glass condenser lens 
-...
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IB Biology 1.2 Latest Update Already Passed
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IB Biology 1.2 Latest Update Already 
 
Passed 
 
Resolution Resolution is defined as the shortest distance between two points that can be 
distinquished 
 
Explain why electron microscopes have a better resolution than light microscopes because 
the wavelength of the electrons is thousands of times smaller than the wavelength of light. 
 
Ultrastructure all the structures of a biological specimen that are at least 0.1 nm in their 
smallest dimension 
 
Something that electron microscopes can se...
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MMSC490 Practice Exam 1 (100% Accurate Answers)
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cytoplasmic organelles are: 
a. absent in prokaryotic cells and present in eukaryotic cells. 
b. present in both prokaryotic and eukaryotic cells. 
c. present in prokaryotic cells and absent in eukaryotic cells. 
d. absent in both prokaryotic and eukaryotic cells. correct answers a. absent in prokaryotic cells and present in eukaryotic cells 
 
E. coli is a useful model system for molecular biology studies because: 
a. it has a small genome. 
b. it reproduces rapidly. 
c. mutants can easily be i...
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All Subject Study Guide for 7th Grade Comprehinsive (Physics, biology, chemistry, math, english, and spanish) Exam| Actual Questions and Answers 100% Correct| Latest Update 2024
- Exam (elaborations) • 49 pages • 2024
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Homeostasis When organisms maintain a stable internal environment even 
when external conditions change 
Metabolism Combination of chemical reactions taking place within an 
organism 
Stimulus A signal to which an organism responds 
Biosphere Means "living planet" 
Robert Hooke Scientist who looked at cork through a microscope and gave 
the name to cells 
Light Microscope A type of microscope 
Can magnify 1000x 
Not as strong as other microscopes 
Uses light 
Scanning Electron Microscope A typ...
-
Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version.
- Exam (elaborations) • 130 pages • 2023
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Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version. 
Chapter 01: Scope of Microbiology 
VanMeter: Microbiology for the Healthcare Professional, 2nd Edition 
MULTIPLE CHOICE 
1. In the sixteenth century a father-and-son team, by the name of , produced a 
compound microscope consisting of a simple tube with lenses at each end. 
a. van Leeuwenhoek 
b. Semmelweis 
c. Janssen 
d. Hooke 
ANS: C REF: p. 3 
2. “Anim...
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Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version.
- Exam (elaborations) • 130 pages • 2023
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Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version. 
Chapter 01: Scope of Microbiology 
VanMeter: Microbiology for the Healthcare Professional, 2nd Edition 
MULTIPLE CHOICE 
1. In the sixteenth century a father-and-son team, by the name of , produced a 
compound microscope consisting of a simple tube with lenses at each end. 
a. van Leeuwenhoek 
b. Semmelweis 
c. Janssen 
d. Hooke 
ANS: C REF: p. 3 
2. “Anim...
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Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version.
- Exam (elaborations) • 130 pages • 2023
-
- $24.99
- + learn more
Test Bank For Microbiology for the Healthcare Professional 2nd Edition VanMeter Questions and Answers| All Chapters 1-25 | Latest Version. 
Chapter 01: Scope of Microbiology 
VanMeter: Microbiology for the Healthcare Professional, 2nd Edition 
MULTIPLE CHOICE 
1. In the sixteenth century a father-and-son team, by the name of , produced a 
compound microscope consisting of a simple tube with lenses at each end. 
a. van Leeuwenhoek 
b. Semmelweis 
c. Janssen 
d. Hooke 
ANS: C REF: p. 3 
2. “Anim...
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