To begin, the outside of the cell is called the cell wall, which helps to keep the shape of the cell and acts as a protective barrier. Right inside of the cell wall is the plasma membrane, which controls the type and mass of materials that come and go out of the cell. After the plasma membrane decides what is needed the vacuole is where the material is stored. The parts responsible for the muscle of a cell is the cytoskeleton which is made up of three protein filaments, microtubules, actin filaments (microfilaments), and intermediate fibers. All of these filaments work together to shape the cell, but the main important function is the cells motility. While the cytoskeleton is important for the muscle function of a cell, the mitochondrion (the power of the cell) is needed to supply energy that helps a cell to move about and produce ATP. The parts of the cell that is responsible for producing proteins are called ribosomes. Ribosomes are the reason for the name of our next part, which is the rough endoplasmic reticulum. The ribosomes are on top of the rough er and they work together to produce then transfer proteins. A cell also contains a part called the smooth endoplasmic reticulum which controls the amount of calcium released, breaks down toxins and creates lipids. While the smooth er creates the lipids, the Golgi body is responsible for distributing them. The Golgi body distributes enzymes and proteins as well. The appearance of a plant is possible because of the…
1. Nuclear Membrane- To represent this, we used a door because the Nuclear membrane controls what goes in and out of the cell just like a door does.
2. DNA- We used this as an instruction pamphlet to represent DNA because DNA acts somewhat like instructions for the cell’s genetic material. Instructions can be found all around the home for many things such as toys, appliances, and electronics.
3. Nucleolus- We used a mother in a kitchen for this organelle because like an actual mother in a kitchen…
There are many different organelles in eukaryotic cell. Some of the organelles are: the Nucleus, Mitochondria, Ribosome’s, Golgi Apparatus, Lysosome, Endoplasmic Recticulur,Cytoskeleton,Centrioles, Nucleus membrane, and Vacuole. The nucleus is the brains of the cell. The nucleus directs all activities and contains genetic material called chromosomes of DNA. The structure of mitochondria is that it is spherical in shape, and visible when cell is not dividing, and contains RNA for protein manufactor…
transport in a cell, meaning that materials move into the cell via small membranous sacs. There are three types of endocytosis and they are pinocytosis, which is "cell drinking", liquids are allowed in the cell and these particles are carried into the cell by pinosomes. The other type is phagocytosis, which means "cell eating" and they are received by phagosomes. The third type of endocytosis is receptor mediated endocytosis, these are protein-coated vesicles that work to bring into cell substances that…
Cell Membrane and Methods of Transportation
Cell Membranes are composed by two layers of phospholipid, which form a bilayer. Phospholipids are made up of a polar, hydrophilic area containing phosphate group bonded to glycerol and a non-polar, hydrophobic area containing fatty acids. Hydrophilic (water-loving) areas point inwards and the ‘heads’ appear on the outside of the membrane where water is present. Hydrophobic areas (water-hating) point outwards and the ‘tails’ orientate…
Cell (Plasma) Membrane
Phospholipids have a hydrophilic (water-loving) phosphate molecule and two hydrophobic (water-hating) fatty acid tails that helps the cell membrane function.
The head of the phospholipid is made of alcohol and ______group.
betalains, located in the cell vacuole. Normally the pigments cannot pass through the membrane however when the beetroot is cooked, the colour tends to leak. The aim of this experiment is to use beetroot to examine the effect of temperature on cell membranes and link the observation to the structure of membranes. To be able to function properly a cell needs control transport across the partially permeable cell membrane. When there is a rise in temperature of a cell membrane, the structure weakens,…
factors that affect light microscopy, some of these are focal length, contrast and light that can pass through the object. Occasionally stains like methylene blue are used to highlight areas of an object to enhance the subject matter and cell characteristics like the membrane.
Wolniak, Stephen. (2004)
The resolution of a light microscope is lower than an electron microscope due to the limits that the wavelengths of light pose. This is also in part due to the detail lost through magnification using the…
Module 2 key terms
Active Transport- Membrane transport processes for which ATP is required. Also refers to solute pumping.
Anabolism- Energy requiring building phase of metabolism in which simpler substances are combined to form more complex substances.
Anticodon- The three base sequence complementary to the messenger RNA codon.
Aerobic- Requiring oxygen.
Anaerobic- Not requiring oxygen.
Catabolism- Process in which living cells breakdown substances into smaller substances.
Lab #1: Cell Membrane
Gary V. Lawrence
Partners: Lily Juno, Huynh, and Lin Yan Sun
October 11th, 2010
October 25th, 2010
King Edward Campus- Rm. 3275
Vancouver Community College
The purpose of this lab was to determine if hemolysis would occur, and how long it would take to occur to red blood cells when blood suspension is introduced to solutions prepared at different temperatures…