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Questions and Answers
Who was the first person to study living things under a microscope?
Who was the first person to study living things under a microscope?
What term did Robert Hooke coin when he observed structures in cork?
What term did Robert Hooke coin when he observed structures in cork?
What did Hooke observe that led to the naming of cells?
What did Hooke observe that led to the naming of cells?
In which year did Robert Hooke publish 'Micrographia'?
In which year did Robert Hooke publish 'Micrographia'?
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Who is known as the 'father of microbiology'?
Who is known as the 'father of microbiology'?
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What was one of the significant contributions of Antonie van Leeuwenhoek's work?
What was one of the significant contributions of Antonie van Leeuwenhoek's work?
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What type of microscope did Antonie van Leeuwenhoek primarily use?
What type of microscope did Antonie van Leeuwenhoek primarily use?
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What did Hooke's discovery of cells help to develop?
What did Hooke's discovery of cells help to develop?
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Who coined the term 'cells' in 1665?
Who coined the term 'cells' in 1665?
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What is the basic structural and functional unit of life?
What is the basic structural and functional unit of life?
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Which of the following statements is NOT true about cell theory?
Which of the following statements is NOT true about cell theory?
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What type of microscopes is associated with the earliest cell observations?
What type of microscopes is associated with the earliest cell observations?
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What is one learning objective for the lesson on cells?
What is one learning objective for the lesson on cells?
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Which scientist is primarily credited with the discovery of the cell from cork?
Which scientist is primarily credited with the discovery of the cell from cork?
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What significant contribution did Robert Hooke make to biology?
What significant contribution did Robert Hooke make to biology?
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Which of the following is NOT a recognized goal of the lesson on cells?
Which of the following is NOT a recognized goal of the lesson on cells?
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Which microscopic animals did Leeuwenhoek discover?
Which microscopic animals did Leeuwenhoek discover?
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What was one of Leeuwenhoek's notable discoveries in 1683?
What was one of Leeuwenhoek's notable discoveries in 1683?
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Who co-founded the cell theory with Theodor Schwann?
Who co-founded the cell theory with Theodor Schwann?
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What significant conclusion did Schwann reach in 1839?
What significant conclusion did Schwann reach in 1839?
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What does Rudolf Virchow's aphorism 'omnis cellula e cellula' mean?
What does Rudolf Virchow's aphorism 'omnis cellula e cellula' mean?
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Which structure did Leeuwenhoek first examine using his own skin?
Which structure did Leeuwenhoek first examine using his own skin?
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What significant pattern did Leeuwenhoek discover in 1682?
What significant pattern did Leeuwenhoek discover in 1682?
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What is the fundamental unit of plant structure according to Schleiden?
What is the fundamental unit of plant structure according to Schleiden?
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Which type of microscope is used for examining the surface of specimens by focusing an electron beam?
Which type of microscope is used for examining the surface of specimens by focusing an electron beam?
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What distinguishes a compound microscope from a simple microscope?
What distinguishes a compound microscope from a simple microscope?
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Which statement about light microscopes is accurate?
Which statement about light microscopes is accurate?
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What function does a Transmission Electron Microscope (TEM) serve?
What function does a Transmission Electron Microscope (TEM) serve?
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Which of the following is NOT a type of light microscope?
Which of the following is NOT a type of light microscope?
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Who is recognized as the father of microscopy?
Who is recognized as the father of microscopy?
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What did Virchow contribute to the field of cellular pathology?
What did Virchow contribute to the field of cellular pathology?
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What type of microscope uses light to magnify objects?
What type of microscope uses light to magnify objects?
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What are the postulates of cell theory?
What are the postulates of cell theory?
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Which of the following statements about types of microscopes is true?
Which of the following statements about types of microscopes is true?
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Which of the following did NOT contribute to the development of the microscope?
Which of the following did NOT contribute to the development of the microscope?
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What significant mechanism did Virchow first explain?
What significant mechanism did Virchow first explain?
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Which pair of scientists invented the first microscope based on lenses in a tube?
Which pair of scientists invented the first microscope based on lenses in a tube?
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Study Notes
Disclaimer
- This material is for informational and educational purposes only.
- The content, opinions, and viewpoints represent the author's and participants' individual perspectives.
- This material is non-commercial, adhering to fair use principles, and protected for privacy and confidentiality.
General Biology 1
- Lesson 1: Cell & Its Beginning
- Subject: General Biology 1
- Morning lecture
- Instructor: [Name of teacher] (not included in image)
- Topic of the lesson: Cellular structure and early microscope technology
- Student materials: [image shows] (not applicable)
Personal Prayer
- Quote by Jani Ortlund: "The answer to our fears is faith, fear-shrinking faith-in our God."
- Image related to prayer.
- Not a subject topic, but included in presentation.
Attendance Checking
- Group 1, 2, 3, & 4 each have 10 points.
Biology 1 ODL Class
- Quarter 2, General Biology 1
- Week 1, Lesson 1: Cell & Its Beginning
- Early microscope technology and cell history.
- Learning objectives include recognizing cell types, microscope types, and drawing and labeling parts of a light microscope.
MET 1
- Recognize the cell from the numerous discoveries of scientists.
Learning Objectives
- Recognize different cell types and microscope types.
- Draw and label parts of a light microscope.
The Beginning of Cell Concept
- Cells are the basic structural and functional units of life.
- The term "cells" was coined in 1665 by Robert Hooke.
Personalities of Cell Theory
- Anton von Leeuwenhoek:
- Discovered free-living cells in algae in 1674.
- Invented the compound microscope.
- First to view free-living cells.
- Known as the "father of microbiology."
- Matthias Jakob Schleiden:
- Discovered that plants are made of cells.
- A German botanist who worked on cell theory alongside Theodor Schwann.
- Identified the fundamental unit of plant structure as a cell.
- Theodor Schwann:
- Concluded that animals are also composed of cells, (1839).
- Collaborated with Schleiden on cell theory.
- Contributed significantly towards the universality of cells within all living organisms.
- Rudolf Virchow:
- Published his aphorism "omnis cellula e cellula" (every cell stems from another cell) in 1855.
- Founded cellular pathology.
Notable Discoveries
- Anton van Leeuwenhoek:
- Examined blood from his finger.
- Identified the structure of his skin.
- Counted vessels in different parts of the body.
- Additional discoveries include the vacuole of the cell (1676), sperm (1677), muscular fiber pattern (1682), and bacteria (1683).
Other Personalities on Cell Discovery
- Schleiden and Schwann
- Evans and Kauffman
- James Thomson
- Camillo Golgi
- Joseph Beinaime Caventou and Pierre Joseph Pelletier
Postulates of Cell Theory
- All living organisms are composed of cells.
- Cells are the fundamental building blocks of tissues, organs, and organisms.
- New cells arise from pre-existing cells.
Functions of Microscope
- A microscope produces enlarged images of small objects, allowing a close view of structures.
- Used for examination and analysis.
First Invented Microscope
- In around 1590, Hans and Zacharias Janssen developed the first microscope based on lenses in a tube.
Father of Microscopy
- Anton Von Leeuwenhoek is known as the "father of microscopy."
- He was a Dutch tradesman and scientist.
- He developed a simple microscope with a single biconvex lens.
Types of Microscopes
- Simple and compound are some of the earliest known microscopes.
- Modern microscopes include electron and fluorescent microscopes.
- Light Microscope:
- Uses light to magnify objects.
- The lenses refract light for objects to appear closer.
- Compound Microscope
- Simple Microscope
- Dissection or Stereo Microscope
- Electron Microscope:
- Uses electrons to generate images.
- Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM).
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