1. Characteristics of Life
2. Science
3. Molecules
4. Water and Living Things
5. Cells
6. Components of the Cell
7. Cell metabolism
8. Cellular Respiration
9. Tissue
1. Characteristics of life
Life is characterized as an organism that grows, develops and evolves. The evolution of life is the explanation for the diversity of species. Life needs energy, reproduces, and responds to stimulus. Life is homeostasis.
Sources: Frolich PowerPoint for cells and Human Biology 10th edition
2. Science
Science is used to study the natural world to better understand why things work the way they do. Understanding these things help humans to life better by interacting with their world, stimuli, nutrients and body better. As science students and scientist we have the responsibility to use science for the betterment of our world.
3. Atoms to Molecules
Atoms from molecules. Atoms are the basis of all living things. Atoms are made up of a nucleus and one or more electrons.
Atom
Scource: http://content.answers.com/main/content/img/ahd4/A4atom.jpg
4. Water and Living Things
Water supports and allows for life. At it’s most basic form it nourishes enables the lymph and all liquid operations of the body. The characteristics of different types of water affect our bodies differently.
Sources: Human Biology 10th edition
Water Molecule
Source: http://www.answers.com/water%20molecule
5. Cells fundamental unit of life
Cells are tiny organisms that are their own individual working unit. Cells make up all living things. Cells are made of many different components.
Animal cell
Source: http://www.uvm.edu/~inquiryb/webquest/fa06/mvogenbe/Animal-Cell.jpg
a. Two types of cells
There are two basic types of cells.
I. Prokaryotic cells
The Prokaryotic cell has small ribosomes, which build proteins from information from the DNA. The DNA is made up of a few small molecules. The mitochondria and chloroplasts are also much smaller and simpler than in the eukaryotic cell.
II. Eukaryotic cells
The eukaryotic cell is a very complex cell, it is found in humans. It has l larger ribosomes than the prokaryotic cells.
6. Components of the Cell
a. Carbohydrates
Carbohydrates are used for energy storage in its complex form. It is the fuel of the mitochondria.
b. Ribosomes
Ribosomes are organelles that are made of RNA and protein. They float freely in the cell. They are the site of protein synthesis.
Ribosome
Source: http://www.phy.ohiou.edu/~phillips/Colloquium/images/image_08may22.jpg
c. Lipids
Lipids are fats. In the cell they work to as part of the outer membrane to protect the inside of the cell.
Lipid
Source: http://www.dgfett.de/meetings/archiv/greifswald/lipid2.jpg
d. Proteins
Proteins are made form amino acids they folds into a very complicated form. They are very complex, and the shape individual proteins make are due to their function.
Protein molecule
Source: http://www.scienceclarified.com/images/uesc_08_img0474.jpg
e. DNA/RNA
The job of DNA/RNA is to store and use information. They tell the cell how it should grow, what it should do and overall function. DNA replicates itself to pass on the information that it contains.
RNA and DNA
Source: http://www.bible-codes.org/images/dna-rna.gif
f. Cilia and Flagella
Are made of microtubules. They are folded organelles that are found in eukaryotic cells. They produce energy in the form of ATP. Their origin may be from an engulfed prokaryotic cell.
Cilia and Flagella
Source: http://micro.magnet.fsu.edu/cells/ciliaandflagella/images/ciliaandflagellafigure1.jpg
g. ATP
ATP allows reactions to take t\place especially in the production of energy. ATP is most often made from oxygen
I. Fermentation
ATP can be produced without oxygen through fermentation. Fermentation occurs in the cytoplasm. It takes place when humans need short bursts of energy.
Sources: http://www.essortment.com/all/whatisatp_rcbe.htm
h. Plasma Membrane
The plasma membrane is on the outer part of the cell and serves as a type of door. It lets some things in and keeps others out. It is embedded with protein. Is supported by its cholesterol.
I. Ways for things to move through the membrane
-Diffusion
-Osmosis
-Active transport
-Facilitated transport
i. Endomembrane system
Endomembrane is a system of membranes that transport molecules in the cell.
j. Mitochondria
The mitochondrion of the cell produces energy for the cell to function. They are organelles with two membranes.
Source: http://www.cellsalive.com/cells/mitochon.htm
Source: http://www.cartage.org.lb/en/themes/sciences/zoology/AnimalPhysiology/Anatomy/AnimalCellStructure/Mitochondria/mitochondria.jpg
7. Cell metabolism
Is when the cell breaks molecules down for further use.
8. Cellular respiration
Cellular respirations occur in the mitochondria and produces ATP. This is the ATP production mechanism that does involve oxygen. Glucose is usually the source of energy in respiration.
9. Types of Tissue
-Connective
-Muscular
-Nervous
-Epithelial
Source: http://images.google.com/imgres?imgurl=https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSH0oX1t3AaQf73_iob7fNSNUvQfmBr4wla4Sa0XSgeWsh6epBWfKLP7TU45y0gPEIrm6pEE30QJG3p-1PRg41nzwXE51KQE4DGc_dKJEy627FrEjjkSHgCZQiefqOOBexx-YiFDS-22o/s320/practi6%255B1%255D.jpg&imgrefurl=http://jennifer-science.blogspot.com/2007_10_01_archive.html&h=180&w=320&sz=11&hl=en&start=32&um=1&usg=__jWBkKPaKXeKT0zGBsB_poTQ2Iwg=&tbnid=ki1uV-xto6WysM:&tbnh=66&tbnw=118&prev=/images%3Fq%3Dpicture%2Bof%2BMuscular%2Btissue%26start%3D20%26ndsp%3D20%26um%3D1%26hl%3Den%26rls%3DADBS,ADBS:2008-34,ADBS:en%26sa%3DN
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