MACROMOLECULES: There are 4 types of macromolecules in the cells. Three of them are the product...
Actin filaments and other proteins are responsible of amoeboid movement of important cells such as macrophages. How can the cell proceed in one direction by amoeboid movement, and what does it happen when direction must be changed? 2. Microtubule dynamics (polymerization and depolymerization) is important in many processes, mention at least two of them and specify the function of microtubules in ciliary beating
4,5,&6 please
Connect the 4 monomers you made into a polymer, however you must lose a colored paperclip with each connection as you hook the monomers together. Each colored paperclip lost in the process represents a mole of water molecules. 3. What is the molar mass of the 'lost' molecule? 2 x 18.02 - 36.04 x3 = 108.12 g /mol 4. How many 'moles' of polymer paperclip chain did you form? How many 'moles' of water colored paperclips did you...
YACs are used to clone large pieces of DNA in yeast cells. What three types of DNA sequence are required to ensure proper replication and propagation of a YAC in a yeast cell, and what is the function of each?
1- a. Draw 3 types of simple cubic cells, explain each drawing. Which is most efficient? How many atoms are in each unit cell? b. A cubic cell has X ions in a simple cubic arrangement, a Y ion in the center of the cell and Z ions on each face? What is the formula of the compound? c. An unknown is suspected to be either calcium fluoride or sodium fluoride. X-Ray crystallography shows that the cubic cell consists of...
What’s for Lunch? A Case Study in Macromolecules Part I You and your friend Maria are supposed to meet at your place for lunch to catch up with each other. You’ve both been craving burritos, so she picks up a couple and brings them by. As you sit down and start eating, Maria looks at your burrito bursting with ingredients, and looks at her own burrito, which is plainer and contains only rice, sour cream, and cheese. She wonders out...
Ch. 8 Plant Chemistry and Metabolism. 1. List the 4 main types of macromolecules found in plants. 2. What is the most abundant compound in plants? 3. List 2 common phenolics and their purposes. 4. What are the structural components of lipids? In what ratio? 5. Describe the structure of membranes and their properties. 6. Explain why some amino acids are “essential” in animals, but not in plants. 7. Which have more saturated fats, temperate or tropical plants? What happens...
You wish to determine the percentage of various types of thymocytes in a sample of cells from mouse thymus using flow cytometry. You stain the sample with a FITC (green) label antibody that binds to CD3. Analysis of the stain sample indicates that 70% of the cells are stained. Based on this result, how many of the thymus cells in your sample are expressing antigen-binding receptors on their surface? Would all be expressing the same type of receptor? Explain your...
4 The various types of cells making up the structural composition of your body (skin cells, muscle cells, cells of your stomach lining, etc.) are all _________________________________________ cells. The only other class of cells in your body are _______________________________ (sperm and egg cells). 5 Pretend that you are observing a skin cell from a chicken under a microscope. What is the class of cell you are looking at? 6 What is the substance in our bodies that serves as a...
3) Connective tissue types can be categorized by the extracellular matrix that the cells excrete. What types of extracellular substances will you observe during lab? Connective tissues: These tissues vary greatly but consist mainly of cell products. The most common ke cell product is collagen, a tough glycoprotein occurring in fibers so large they must be assembled outside the cell. Connective tissues are also subdivided into different types (e.g., loose, dense, II. fibrous, non-fibrous) but due to their complexity we...
1. Mature B cells require particular receptors to be engaged by ligand to stimulate these cells to become antibody-secreting cells. Fill-in the table below with the receptor(s) on naïve B cells that transmit each signal and the corresponding ligand(s) that engage that receptor. (6 pts) Receptor(s) on B cell Ligand(s) Location in body where receptor engagement occurs Signal 1 Signal 2 b. Briefly describe what happens to mature B cells that receive Signal 1, but not Signal 2? (2 pts)...