Download : Name: Cell Biology Basics http://www.biology4kids.com/files

:
Name:
Cell Biology Basics
http://www.biology4kids.com/files/cell_main.html
Read through the main page on the above link and answer the following questions:
1. What does the text say is the main purpose of all cells?
2. How many types of cells are there? Hypothesize why so many cell types might exist.
Cell Membrane
click the appropriate right-hand link
1. What components comprise the cell membrane?
2. Consider why these components are most beneficial to the membrane’s function. Then contrast the actual
composition versus the hypothetical effects of a single, elongated molecule as the membrane.
3. On what level (for which structures) do membranes vary?
4. Click on Membrane Proteins, and compare the types of proteins in the membrane.
Cytoplasm
click appropriate link
1. Click on the Cytoplasm link, and list 4 types of molecules dissolved in the cytosol.
2. What functions can the cytoplasm complete? Evaluate how these functions are beneficial to the cell
Ribosomes
click appropriate link
1. Complete the following flow chart for a ribosome’s basic function
mRNA
3. Identify the ribosomal subunits for eukaryotic versus prokaryotic cells. How is this variation an unintended
benefit to the practice of cellular and medicinal science?
Nucleus
click appropriate link
1. Categorize the cell types that contain a nucleus. In cells without nuclei, where is the DNA located?
2. Contrast the components of the nucleus versus the nucleolus,
3. Click on the Chromosomes right-hand link. What is a chromosome?
4. Hypothesize an explanation for why chromosomes are primarily found as chromatin
Mitochondria
click appropriate link
1. For such a small structure, what large role do mitochondria play in the cell?
2. Open the following link in a new window and scroll to part II.
http://www.biology.iupui.edu/biocourses/N100/2k2endosymb.html
a. Diagram or describe a basic overview of the endosymbiotic theory.
b. Provide support for why this theory is so important to life as we know it.
Molecule Transportation
see directions below
1. Return to Biology4Kids and click the link for Endoplasmic Reticulum. Complete the following chart.
Distinguishing
characteristics
Main Purpose
Function
Smooth ER
Rough ER
2. Now click the right-hand link titled Golgi Complex.
a. Relate the function of the Golgi complex to the function of the endoplasmic reticulum
Location
Plant Cells
see directions below
1. Click the link for Cell Wall. Assess the importance of a cell wall to a plant.
2. Click the link for Chloroplasts
a. Explain the function of each of the labeled parts
i. Thylakoid
ii. Stroma
iii. Lamellae
3. Click the link for Vacuoles
a. Criticize the classification of vacuoles as a plant cell structure.
b. Indicate additional purposes of vacuoles.
Free Response
1. Finish reading through all site links.
2. Choose one structure and predict the large-scale outcome of disrupting the structure’s function. Your
answer should be thoroughly thought out, and at least five sentences in length.