Reading Assignment

DEN

GU

E,

also known as breakbone fever, is an infectious tropical disease caused by the dengue virus.

CAUSATIVE AGENT, Dengue fever virus (DENV) is an RNA virus of the family Flaviviridae; genus Flavivirus.

MECHANISM, When a mosquito carrying dengue virus bites a person, the virus enters the skin together with the mosquito's saliva. It binds to and enters white blood cells, and reproduces inside the cells while they move throughout the body.

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Zaccharias & Hans JanssenLENS derived from the Latin “Lentils” which happens to be a seed crop. It was named due to its resemblance.

LENS

1972

Crude Microscope

Father of MicroscopyAnton van Leeuwenhooke

Anton Van Leeuwenhoek was the first to see and describe bacteria (1674), yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries.

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Robert Hooke wrote

Micrographia, the first book describing observations made through a microscope. Hooke was the first person to use the

word "cell" to identify microscopic structures when he was describing cork.

Cell & Cell wall

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PROTOPLASM

In PROKARYOTES the material inside the plasma membrane is the

bacterial cytoplasm

Protoplasm is the living content of a cell that is surrounded by a plasma membrane (cell membrane).

In EUKARYOTES the protoplasm surrounding the cell nucleus is known as the

cytoplasm and that inside the nucleus as the

nucleoplasm.

Proponent: Jan Evangelista Purkenji,

1972

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NUCLEUSProponent: Robert Brown

The nucleus is a highly specialized organelle that serves as the information

and administrative center of the cell. This organelle has two major functions. It

stores the cell's hereditary material, or DNA, and it coordinates the cell's

activities, which include intermediary metabolism, growth, protein synthesis,

and reproduction (cell division).

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proposed that a new group of one-celled organisms be called Rhizopoda; meaning "root-foot". The name was later changed to Protozoa.

Félix Dujardin

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All plants looked at were made of cells, so concluded:

“All plants are made of cells.”

Matthias SchleidenGerman botanist and co-founder of the cell theory,

1. All living organisms are made up of one or more cells.2. Cells are the basic unit of life.3. All cells arise from pre-existing cells.

Cell Theory

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All animals looked at were made of cells, so concluded:

“All animals are made of cells.”

Theodore SchwannGerman botanist and co-founder of the cell theory,

1. All living organisms are made up of one or more cells.2. Cells are the basic unit of life.3. All cells arise from pre-existing cells.

Cell Theory

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concluded:

“Where a cell exists, there must have been a preexisting cell…..”

Rudolf VirchowGerman physician and co-founder of

the cell theory, studied cell

reproduction

1. All living organisms are made up of one or more cells.2. Cells are the basic unit of life.3. All cells arise from pre-existing cells.

Cell Theory

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ChromosomesProponent: Walther FlemmingA chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.

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THE FUNCTION of the Golgi is to package different macromolecules and products from the endoplasmic reticulum, ribosomes, and other vesicles into their final form in order for them to be sent out. These packaged products can be sent out of the cell to another cell, or they can be sent somewhere within the cell -- regardless, if a product needs to be sent out, the Golgi will package it and send it out (just like a post office).

Golgi ApparatusProponent: Camillo Golgi,

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MitochondrionProponent: Karl Benda

A typical animal cell will have on the order of 1000 to 2000 mitochondria. So the cell will have a lot of structures that are capable of producing a high amount of available energy. This ATP production by the mitochondria is done by the process of respiration, which in essence is the use of oxygen in a process which generates energy. This is a very efficient process for using food energy to make ATP. One of the benefits of "aerobic exercise" is that it improves your body's ability to make ATP rapidly using the respiration process.

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Proponent: Paul WintrebertCytoskeleton

3 kinds of Cytoskeleton1. Microfilaments2. Intermediate filaments3. Microtubules

FUNCTIONS to provide•cell shape•cell movement•intracellular movement

Protein elements of the cytoskeleton

• actin• tubulin

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Proponent: Albert Claude

The endoplasmic reticulum (ER) is responsible for the production of the protein and lipid components of most of the cell's organelles.These two types of ER - rough, which is coated with ribosomes, and smooth, which isn't.

Rough ER is the site of protein synthesis. The

smooth ER is where the vesicles carrying newly synthesized proteins (from the rough ER) are budded off.

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Proponent: Christian de Duve

Lysosomes

The lysosomes job in the cell is to digest all worn out organelles and any bacteria or viruses. The lysosomes dispense the waste into a vacuole the transports it out of the cell.

FUNCTIONS AS

Also called as Suicide-bags of the cell.

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Proponent: George Palade

Ribosome

A ribosome is an organelle which assembles the twenty specific amino acid molecules to form the particular protein molecule determined by the

nucleotide sequence of an RNA molecule.

Protein-synthesizers

1972

Free ribosomes are suspended in the cytosol. (semi-fluid of the Cytoplasm)

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Proponent: Seymour Jonathan Singer

Fluid Mosaic Model1972

Plasma Membrane

is a biological membrane that separates the interior of all cells from the outside environment.

Parts of the Cell

Homework Activity A2pcs ½ Short Folder LandscapeTIMELINE OF THE EARLY HISTORY OF THE CELL

REMINDERS:

Reading AssignmentReading assignment notebook

Enumerate the remaining organelles that was not included in the presentation and give a short description of its function inside the cell.

If already done, relax. Proceed to

Reading assignments.

To be passed on Monday.

Thought for the day.The organelles follow a rhythm

that are orderly and systematized but our cells

depending on the location in the body have varied

specialized functions. (such as skin cells,

brain cells, liver cells). Draw an analogy of the role of

organelles in the cell (ex. Chocolate factory, Town or Office.)

Homework Activity B

example next Slide.

½ Short Folder LandscapeRubric shall be given on Monday to be passed on Thursday.

Description next Slide.

http://www.gmanews.tv/story/19323/scientists-uncover-new-bird-flu-strain-h5n1-fujian-likeCopy the Link:

Answer the following after on your reading assignment notebook.

1. What is the new strain of Avian influenza virus?

2. What is the name of the protein in the virus that the cell attacks to make anti-body?

3. Draw the structure of the new virus strain.

4. Compare the recent virus from A(H1N1) (e.i viral structure, fatality, mortality)

Reading Assignment 2 {to be Passed on Wednesday}