Untitled Quiz
37 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Who was the first person to study living things under a microscope?

  • Antonie van Leeuwenhoek (correct)
  • Louis Pasteur
  • Robert Hooke
  • Joseph Lister

What term did Robert Hooke coin when he observed structures in cork?

  • Tissues
  • Animalcules
  • Cells (correct)
  • Microorganisms

What did Hooke observe that led to the naming of cells?

  • Living bacteria
  • Blood cells
  • Plant tissues
  • Honeycomb-like structures in cork (correct)

In which year did Robert Hooke publish 'Micrographia'?

<p>1665 (D)</p> Signup and view all the answers

Who is known as the 'father of microbiology'?

<p>Antonie van Leeuwenhoek (A)</p> Signup and view all the answers

What was one of the significant contributions of Antonie van Leeuwenhoek's work?

<p>He discovered free-living cells. (A)</p> Signup and view all the answers

What type of microscope did Antonie van Leeuwenhoek primarily use?

<p>Single-lensed microscopes (B)</p> Signup and view all the answers

What did Hooke's discovery of cells help to develop?

<p>Classical cell theory (D)</p> Signup and view all the answers

Who coined the term 'cells' in 1665?

<p>Robert Hooke (B)</p> Signup and view all the answers

What is the basic structural and functional unit of life?

<p>Cell (C)</p> Signup and view all the answers

Which of the following statements is NOT true about cell theory?

<p>Cells can arise spontaneously from non-living matter. (D)</p> Signup and view all the answers

What type of microscopes is associated with the earliest cell observations?

<p>Light microscopes (A)</p> Signup and view all the answers

What is one learning objective for the lesson on cells?

<p>To recognize the types of microscopes. (C)</p> Signup and view all the answers

Which scientist is primarily credited with the discovery of the cell from cork?

<p>Robert Hooke (B)</p> Signup and view all the answers

What significant contribution did Robert Hooke make to biology?

<p>He coined the term 'cells'. (D)</p> Signup and view all the answers

Which of the following is NOT a recognized goal of the lesson on cells?

<p>To study the genetic material within cells. (A)</p> Signup and view all the answers

Which microscopic animals did Leeuwenhoek discover?

<p>Nematodes (C)</p> Signup and view all the answers

What was one of Leeuwenhoek's notable discoveries in 1683?

<p>Bacterial structures (B)</p> Signup and view all the answers

Who co-founded the cell theory with Theodor Schwann?

<p>Matthias Jakob Schleiden (C)</p> Signup and view all the answers

What significant conclusion did Schwann reach in 1839?

<p>Animals are made up of cells (A)</p> Signup and view all the answers

What does Rudolf Virchow's aphorism 'omnis cellula e cellula' mean?

<p>Every cell stems from another cell (D)</p> Signup and view all the answers

Which structure did Leeuwenhoek first examine using his own skin?

<p>Blood vessels (D)</p> Signup and view all the answers

What significant pattern did Leeuwenhoek discover in 1682?

<p>Banded pattern of muscular fibers (D)</p> Signup and view all the answers

What is the fundamental unit of plant structure according to Schleiden?

<p>Cell (A)</p> Signup and view all the answers

Which type of microscope is used for examining the surface of specimens by focusing an electron beam?

<p>Scanning Electron Microscope (D)</p> Signup and view all the answers

What distinguishes a compound microscope from a simple microscope?

<p>A compound microscope uses multiple lenses. (C)</p> Signup and view all the answers

Which statement about light microscopes is accurate?

<p>They include types such as compound, simple, and stereo microscopes. (A)</p> Signup and view all the answers

What function does a Transmission Electron Microscope (TEM) serve?

<p>It transmits electrons through a thin specimen. (D)</p> Signup and view all the answers

Which of the following is NOT a type of light microscope?

<p>Scanning Electron Microscope (B)</p> Signup and view all the answers

Who is recognized as the father of microscopy?

<p>Anton Von Leeuwenhoek (D)</p> Signup and view all the answers

What did Virchow contribute to the field of cellular pathology?

<p>First to recognize leukemia (A)</p> Signup and view all the answers

What type of microscope uses light to magnify objects?

<p>Light microscope (A)</p> Signup and view all the answers

What are the postulates of cell theory?

<p>New cells are formed through division of pre-existing cells (B)</p> Signup and view all the answers

Which of the following statements about types of microscopes is true?

<p>Compound microscopes utilize light refraction. (B)</p> Signup and view all the answers

Which of the following did NOT contribute to the development of the microscope?

<p>Galileo Galilei (A)</p> Signup and view all the answers

What significant mechanism did Virchow first explain?

<p>Mechanism of pulmonary thromboembolism (D)</p> Signup and view all the answers

Which pair of scientists invented the first microscope based on lenses in a tube?

<p>Hans and Zacharias Janssen (C)</p> Signup and view all the answers

Flashcards

Cell Theory

Cells are the basic units of all living things, performing life's functions.

Basic Unit of Life

Cells are the smallest structural and functional units of living organisms.

Robert Hooke

The scientist who first used the term 'cells' to describe structures in plant tissue.

Light Microscope

A microscope that uses visible light.

Signup and view all the flashcards

History of Cell

A detailed understanding of how scientists evolved the concept of cells and discovered more about them.

Signup and view all the flashcards

Cell

The fundamental structural and functional unit of life.

Signup and view all the flashcards

types of Cells

There are many different types, each with specialized roles.

Signup and view all the flashcards

microscopes

Tools used to view small objects, like cells.

Signup and view all the flashcards

Robert Hooke's contribution to cell theory

Robert Hooke, in 1665, observed box-like structures in cork under a microscope and coined the term 'cells'.

Signup and view all the flashcards

Anton van Leeuwenhoek's discovery

Anton van Leeuwenhoek, using single-lens microscopes, discovered free-living cells in water and described microorganisms.

Signup and view all the flashcards

Early microscopes and cell discovery

The invention of the microscope enabled the discovery of cells and led to the development of cell theory.

Signup and view all the flashcards

Micrographia (book)

A book by Robert Hooke containing detailed drawings and descriptions of organisms viewed through a microscope.

Signup and view all the flashcards

Microbial discovery

Leeuwenhoek's observation of microscopic organisms, which he called 'animalcules'.

Signup and view all the flashcards

Leeuwenhoek's discovery

Leeuwenhoek observed microscopic organisms like nematodes and rotifers, as well as red blood cells, bacteria, and cell structures.

Signup and view all the flashcards

Free-living cells

Cells that exist independently, not part of a larger organism.

Signup and view all the flashcards

Cell theory - plants

Schleiden proposed that all plants are made up of cells, establishing cells as the fundamental unit of plant structure..

Signup and view all the flashcards

Single-lens microscopes

Microscopes with a single lens, used by Anton van Leeuwenhoek to discover cells.

Signup and view all the flashcards

Cell theory - animals

Schwann expanded the cell theory by concluding that animals were also composed of cells, confirming its universality.

Signup and view all the flashcards

Cell theory (development)

The development of the biological understanding of cells, aided by the work of Hooke & Leeuwenhoek.

Signup and view all the flashcards

Cell theory - cell origin

Virchow stated that all cells come from pre-existing cells, a crucial element of modern cell theory.

Signup and view all the flashcards

Anton van Leeuwenhoek

Dutch scientist who made significant contributions to microbiology through microscopy.

Signup and view all the flashcards

Matthias Schleiden

Botanist who established the concept of the cell as the fundamental unit of plant structure.

Signup and view all the flashcards

Theodor Schwann

Physiological scientist who concluded that animals are also composed of cells.

Signup and view all the flashcards

Rudolf Virchow

Scientist who proposed that all cells originate from pre-existing cells.

Signup and view all the flashcards

Cellular Pathology

The study of diseases at the cellular level.

Signup and view all the flashcards

Pulmonary Thromboembolism

A blood clot that travels to the lungs, blocking blood flow.

Signup and view all the flashcards

Postulates of Cell Theory

A set of principles explaining how cells work in living things.

Signup and view all the flashcards

Microscope Function

A tool that magnifies small objects, revealing details invisible to the naked eye.

Signup and view all the flashcards

Father of Microscopy

Anton van Leeuwenhoek, renowned for his microscope and groundbreaking observations.

Signup and view all the flashcards

Simple vs Compound Microscope

Early types of microscopes, replaced by more advanced models.

Signup and view all the flashcards

Compound Microscope

A type of light microscope that uses multiple lenses to magnify an object. This design allows for greater magnification than a simple microscope.

Signup and view all the flashcards

Simple Microscope

A type of light microscope that uses a single lens to magnify an object. This basic design is similar to a magnifying glass.

Signup and view all the flashcards

Dissection Microscope

A type of light microscope designed for observing three-dimensional objects. It offers a stereo view with a lower magnification than a compound microscope.

Signup and view all the flashcards

Electron Microscope

A microscope that uses a beam of electrons instead of light to generate images. It provides much higher magnification and resolution compared to light microscopes.

Signup and view all the flashcards

TEM & SEM

Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM) are two types of electron microscopes. TEM transmits electrons through a thin specimen to view internal structures, while SEM scans the surface with electrons to produce 3D images.

Signup and view all the flashcards

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).

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Deped General Biology 1: Cell and Its Beginning PDF

More Like This

Untitled Quiz
37 questions

Untitled Quiz

WellReceivedSquirrel7948 avatar
WellReceivedSquirrel7948
Untitled Quiz
55 questions

Untitled Quiz

StatuesquePrimrose avatar
StatuesquePrimrose
Untitled Quiz
50 questions

Untitled Quiz

JoyousSulfur avatar
JoyousSulfur
Untitled Quiz
48 questions

Untitled Quiz

StraightforwardStatueOfLiberty avatar
StraightforwardStatueOfLiberty
Use Quizgecko on...
Browser
Open
Browser
Browser