I Cellular BiologyCells are a collection of living matter that is inside of a barrier that separates the cell from its surroundings: basic unit of all forms of life. (Biology textbook Prentice Hall). The are considered the basic unit of life because we all contain cells within us. Its relevant to biology because biology is the study of life and cells are a part of life.
|
IV Types of cellsProkaryotic and Eukaryotic cells are cells that have always been around. They share similarities as well as diffrences. For instance Prokaryotic cells are bacterial cells while Eukaryotic cells are plants and animal cells. Not only that but Prokaryotic cells contain a storage granule and Euckaryotic cells contain a vacoule. Similarites that they share is both contain DNA (Dexoyribo Nucleic Acid). They also both contain a nucleus.
|
II How big are objects in the biological world?
In the biological world objects are small. They would go from millimeters to nano meters as you zoom in. From the human eyes perspective you can't see up to nano-meters. However with the help of a good powerful microscope you can see up nano meters.
III Levels of organization
The biological system is organized as..
1.(Being the smallest) An atom.
2.(Being bigger than an atom) Is a molecule.
3.(Being bigger than a molecule) Is a cell.
4.(Being bigger than a cell) is a tissue.
5.(Being bigger than a tissue) is an organ.
6.(Being bigger than an organ) is an organ system.
7.(Being bigger than an organ system) is multicelled organism.
8.(Being bigger than a multicelled organism) is a population.
9.(Being bigger than a population) is a community.
10(Being bigger than a community) is an ecosystem.
11.(Being bigger than a ecosystem) is a biosphere.
1.(Being the smallest) An atom.
2.(Being bigger than an atom) Is a molecule.
3.(Being bigger than a molecule) Is a cell.
4.(Being bigger than a cell) is a tissue.
5.(Being bigger than a tissue) is an organ.
6.(Being bigger than an organ) is an organ system.
7.(Being bigger than an organ system) is multicelled organism.
8.(Being bigger than a multicelled organism) is a population.
9.(Being bigger than a population) is a community.
10(Being bigger than a community) is an ecosystem.
11.(Being bigger than a ecosystem) is a biosphere.
V Types of cells
Prokaryotic cells
|
Similarites
|
Eukaryotic Cells
|
VI Visualizing cells
|
Section Assesment questions for chapters 2.1-2.3
Chapter 2.1
Chapter 2.2
Chapter 2.3
1. Carbohydrates, lipids, nucleic acids, and proteins.
2. Carbohydrates store up sugar
Lipids store up energy
Nucleic Acids store and transmit hereditary or genetic information
Proteins control the rate of reactions and regulate cell process
3. Carbon can form with macromoloecules because carbon can form chains that is unlimited in length that is why it can form with macro-molecules
4. Proteins are considered as polymers because protein can form many combinations of monomers. Lipids cant because they have fatty sells.
5. Bio-molecule lipids and starches are similar because both have unsaturated fat. The difference is that starches are from pasta or grain while bio-molecule lipids aren't.
- An atom is a very small spherical shape. Inside of it you would find subatomic particles. Inside of these particles are proton neutrons(in the center) and electrons that orbit around the protons and neutrons.
- They have the same properties because they have the same mass number (weight of the atom). They would differ if they weren't the same weight or if there was a different number of neutrons.
- Covalent Bond- a bond formed by the sharing of electrons between atoms. Ionic Bond- a bond that is formed when one or more electrons are transferred from one atom to another.
- Compound- a substance formed by the chemical combinations of two or more elements in definite proportions. Compounds are related to molecules because the both are a small unit inside of an atom plus they both need each other in order to work.
- They hold molecules together because there is a slight attraction that develops between the oppositely charged regions of molecules.
Chapter 2.2
- It would be polar because the uneven distribution of electrons between the oxygen and hydrogen atoms.
- The H+ions are used to tell how much acidity the substance is. The OH ions is to tell how basic the substance is.
- The diffrence between solutions and suspension is that solution is the mixture of two or more substances while suspensions is a mixture of water and nondissolved materials.
- The pH scale measures a substance acidity and basic compound.
Chapter 2.3
1. Carbohydrates, lipids, nucleic acids, and proteins.
2. Carbohydrates store up sugar
Lipids store up energy
Nucleic Acids store and transmit hereditary or genetic information
Proteins control the rate of reactions and regulate cell process
3. Carbon can form with macromoloecules because carbon can form chains that is unlimited in length that is why it can form with macro-molecules
4. Proteins are considered as polymers because protein can form many combinations of monomers. Lipids cant because they have fatty sells.
5. Bio-molecule lipids and starches are similar because both have unsaturated fat. The difference is that starches are from pasta or grain while bio-molecule lipids aren't.