Human Biology Lab at Ajman University Of Science & Technology | Flashcards & Summaries

Lernmaterialien für Human Biology Lab an der Ajman University of Science & Technology

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Robert Hooke

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Robert Hooke first observed plant cells with a crude microscope in the late 1600s. " MicroGraphia"

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Cell Theory (Theodor Schwann & Matthias Schleiden 1839)

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a theory in biology that includes statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells. 

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Rudolf Virchow (1821-1902)

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All cells come from other cells... where a cell originates it must have been preceded by another cell, just as animals produced only by other animals and plants by other plants

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Microscopes

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Janssen : The first compound microscope/ 1595

The Olympus povis Ax-70

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Microscopes

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Janssen : The first compound microscope/ 1595

The Olympus povis Ax-70

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Electron Microscopes

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1. Transmission EM

2. Scanning EM

Investigate the detailed structure of tissues, cells, organelles, and macromolecular complexes

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Microscopy & Cells

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Light microscopy

Transmission electron microscopy : view thin specimens through which electrons can pass generating a projection image. 
Scanning electron microscopy : provides detailed images of the surfaces of cells and whole organisms.

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Cytoplasm

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has cytosol ( solution of proteins, electrolytes, and carbohydrates ) and organelles ( functional compartments )...

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Matthias Schleiden and Theodor Schwann & Rudolf Virchow propose

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In 1838, Matthias Schleiden and Theodor Schwann proposed that all life was composed of cells while Rudolf Virchow proposed in 1855 that cells arise only from other cells.

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Cell Theory

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All living things are composed of cells.

All chemical reactions of life-occurring cells or in association with cells.

Cells arise only from preexisting cells.

Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell.

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Cell membrane

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The cell mb is not an organelle but is an important component of cellular structure. It encloses the cell and exhibits selective permeability; it regulates the passage of material into and out of the cell. The cell mb consists of a phospholipid bilayer. Phospholipids have both a water-loving (hydrophilic) polar phosphoric acid region and a hydrophobic fatty acid region.

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Epithelium

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Protects, absorb, filter, secrete.

Bond by desmosomes and tight junction.

Avascular (no blood supply), gets blood from capillaries.

Has nerve supply.

Regenerate easily (highly turnover)

Protects from chemical damage and bacteria invasion.

absorption in kidney tubules, GI

Secretes galnds

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  • 203 Karteikarten
  • 16 Studierende
  • 0 Lernmaterialien

Beispielhafte Karteikarten für deinen Human Biology Lab Kurs an der Ajman University of Science & Technology - von Kommilitonen auf StudySmarter erstellt!

Q:

Robert Hooke

A:

Robert Hooke first observed plant cells with a crude microscope in the late 1600s. " MicroGraphia"

Q:

Cell Theory (Theodor Schwann & Matthias Schleiden 1839)

A:

a theory in biology that includes statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells. 

Q:

Rudolf Virchow (1821-1902)

A:

All cells come from other cells... where a cell originates it must have been preceded by another cell, just as animals produced only by other animals and plants by other plants

Q:

Microscopes

A:

Janssen : The first compound microscope/ 1595

The Olympus povis Ax-70

Q:

Microscopes

A:

Janssen : The first compound microscope/ 1595

The Olympus povis Ax-70

Mehr Karteikarten anzeigen
Q:

Electron Microscopes

A:

1. Transmission EM

2. Scanning EM

Investigate the detailed structure of tissues, cells, organelles, and macromolecular complexes

Q:

Microscopy & Cells

A:

Light microscopy

Transmission electron microscopy : view thin specimens through which electrons can pass generating a projection image. 
Scanning electron microscopy : provides detailed images of the surfaces of cells and whole organisms.

Q:

Cytoplasm

A:

has cytosol ( solution of proteins, electrolytes, and carbohydrates ) and organelles ( functional compartments )...

Q:

Matthias Schleiden and Theodor Schwann & Rudolf Virchow propose

A:

In 1838, Matthias Schleiden and Theodor Schwann proposed that all life was composed of cells while Rudolf Virchow proposed in 1855 that cells arise only from other cells.

Q:

Cell Theory

A:

All living things are composed of cells.

All chemical reactions of life-occurring cells or in association with cells.

Cells arise only from preexisting cells.

Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell.

Q:

Cell membrane

A:

The cell mb is not an organelle but is an important component of cellular structure. It encloses the cell and exhibits selective permeability; it regulates the passage of material into and out of the cell. The cell mb consists of a phospholipid bilayer. Phospholipids have both a water-loving (hydrophilic) polar phosphoric acid region and a hydrophobic fatty acid region.

Q:

Epithelium

A:

Protects, absorb, filter, secrete.

Bond by desmosomes and tight junction.

Avascular (no blood supply), gets blood from capillaries.

Has nerve supply.

Regenerate easily (highly turnover)

Protects from chemical damage and bacteria invasion.

absorption in kidney tubules, GI

Secretes galnds

Filter

Human Biology Lab

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