
WINTER ASSIGNMENT OF BIOLOGY CLASS
... 11. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes. Answer: 12. It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell. Answer: 13. It synthesizes proteins by prod ...
... 11. It is the site of ATP (Adenosine triphosphate) synthesis. It also synthesizes respiratory enzymes. Answer: 12. It is semi-permeable, allowing substances to enter and leave the nucleus of the cell. It also provides protection to the nucleus of the cell. Answer: 13. It synthesizes proteins by prod ...
MOVEMENT THROUGH THE MEMBRANE
... Why is the lipid bilayer important? • Tough, flexible structure • Strong barrier between the cell and its environment ...
... Why is the lipid bilayer important? • Tough, flexible structure • Strong barrier between the cell and its environment ...
Jell-O Cells
... the Jell-O according to the package directions. Pour Jell-O into the individual containers and discuss how the Jell-O represents the cytoplasm within the cell. 2. Put the Jell-O in a refrigerator and let set over night so that it will congeal. 3. Prior to the next class, make a paper plate for each ...
... the Jell-O according to the package directions. Pour Jell-O into the individual containers and discuss how the Jell-O represents the cytoplasm within the cell. 2. Put the Jell-O in a refrigerator and let set over night so that it will congeal. 3. Prior to the next class, make a paper plate for each ...
cell wall
... Diffusion- Movement of molecules from an area where there are many to an area where there are few Examples: food coloring in water, spraying air freshener ...
... Diffusion- Movement of molecules from an area where there are many to an area where there are few Examples: food coloring in water, spraying air freshener ...
Supplementary Materials and Methods (doc 73K)
... insulin-like growth factor-1 (IGF1; 10 ng/mL, all from Peprotech, Rocky Hill, NJ, USA)3. Cells were then grown for 7 days in differentiation culture medium (IMDM medium) supplemented with VEGF (60 ng/mL) and SCGF (100 ng/mL)4. ...
... insulin-like growth factor-1 (IGF1; 10 ng/mL, all from Peprotech, Rocky Hill, NJ, USA)3. Cells were then grown for 7 days in differentiation culture medium (IMDM medium) supplemented with VEGF (60 ng/mL) and SCGF (100 ng/mL)4. ...
Revision Multiple Choice Identify the letter of the choice that best
... ____ 40. The energy in most food comes originally from sunlight. _________________________ ____ 41. Plants gather the sun’s energy with light-absorbing molecules called pigments. _________________________ ____ 42. Cellular respiration releases energy by breaking down glucose in the presence of carbo ...
... ____ 40. The energy in most food comes originally from sunlight. _________________________ ____ 41. Plants gather the sun’s energy with light-absorbing molecules called pigments. _________________________ ____ 42. Cellular respiration releases energy by breaking down glucose in the presence of carbo ...
cell analogy 2009 project
... Introduction Cells need to carry on the same basic functions as we do to sustain life; the difference is cells do this with much smaller parts. These smaller structures that allow the cell to function are called organelles – “tiny organs.” Also plant and animal cells have some similar parts and some ...
... Introduction Cells need to carry on the same basic functions as we do to sustain life; the difference is cells do this with much smaller parts. These smaller structures that allow the cell to function are called organelles – “tiny organs.” Also plant and animal cells have some similar parts and some ...
cells and organelles
... Cells and Their Organelles The cell is the basic unit of life. The following is a glossary of animal cell terms. All cells are surrounded by a cell membrane. (a.k.a: plasma membrane) The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others. It is compose ...
... Cells and Their Organelles The cell is the basic unit of life. The following is a glossary of animal cell terms. All cells are surrounded by a cell membrane. (a.k.a: plasma membrane) The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others. It is compose ...
How does the cell work?
... conditions. • Create a drawing of 3 conditions during the potato lab that demonstrate these words in action. ...
... conditions. • Create a drawing of 3 conditions during the potato lab that demonstrate these words in action. ...
Plant and Animal Cells
... Cells are microscopic. They cannot be seen without a microscope. When viewed through a microscope, it is possible to see that while they are similar in many ways, there are some key differences between plant and animal cells. They have different shapes and some different parts. ...
... Cells are microscopic. They cannot be seen without a microscope. When viewed through a microscope, it is possible to see that while they are similar in many ways, there are some key differences between plant and animal cells. They have different shapes and some different parts. ...
PPT 1
... cholerae ? • Cholera is transmitted by the ingestion of water, or food that has been contaminated with faecal material containing the pathogen. • Can you think of ways that this contamination might happen? • How about ways to prevent it from happening? ...
... cholerae ? • Cholera is transmitted by the ingestion of water, or food that has been contaminated with faecal material containing the pathogen. • Can you think of ways that this contamination might happen? • How about ways to prevent it from happening? ...
Task - Science - Biology - Comparing Viruses to Other Types of Cells
... Although antibiotics will kill or prevent the reproduction of bacterial cells, they have no effect on viruses. Viruses do not have the cell organelles that a bacterial cell contains. Viruses are made up of nucleic acids, proteins, and a capsid only. There are no ribosomes or cell walls in the virus ...
... Although antibiotics will kill or prevent the reproduction of bacterial cells, they have no effect on viruses. Viruses do not have the cell organelles that a bacterial cell contains. Viruses are made up of nucleic acids, proteins, and a capsid only. There are no ribosomes or cell walls in the virus ...
Comparing Virus to Other Types of Cells
... Bacterial infections can be treated with antibiotics. Antibiotics vary in their mode of action. In some cases, components (chemical compounds) in the antibiotics bind to the bacteria's protein-building factory—the ribosome—and cause it to assemble proteins incorrectly. Other antibiotics work by inhi ...
... Bacterial infections can be treated with antibiotics. Antibiotics vary in their mode of action. In some cases, components (chemical compounds) in the antibiotics bind to the bacteria's protein-building factory—the ribosome—and cause it to assemble proteins incorrectly. Other antibiotics work by inhi ...
Document
... Endocytosis (into the cell) • The formation of a vesicle from cell membrane, enclosing materials near the cell surface and bringing them into the cell ...
... Endocytosis (into the cell) • The formation of a vesicle from cell membrane, enclosing materials near the cell surface and bringing them into the cell ...
Life is Cellular
... Function of the cell membrane: • Protective barrier from the outside environment • Controls what goes in and comes out of the cell ...
... Function of the cell membrane: • Protective barrier from the outside environment • Controls what goes in and comes out of the cell ...
Unit 2 Bio Study Guide
... 19. Which scientist discovered that all plants had cells? ________________________________ 20. Which scientist discovered that all animal cells have cells? __________________________ 21. Which scientist discovered that all cells arise from existing cells? ___________________________ 22. How are chlo ...
... 19. Which scientist discovered that all plants had cells? ________________________________ 20. Which scientist discovered that all animal cells have cells? __________________________ 21. Which scientist discovered that all cells arise from existing cells? ___________________________ 22. How are chlo ...
Extracellular matrix

In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).