
- Basic structural, functional and biological unit of all organisms
... Are multicellular organisms made up of prokaryotic or eukaryotic cells? Some protists, some fungi, all plants and all animals ...
... Are multicellular organisms made up of prokaryotic or eukaryotic cells? Some protists, some fungi, all plants and all animals ...
Harvard-MIT Division of Health Sciences and Technology
... Leukocytes firmly adhere to endothelial cells before diapedesis ...
... Leukocytes firmly adhere to endothelial cells before diapedesis ...
CELLS: The Living Units
... • Voltage (electrical potential) across a membrane • Resting membrane potential – the point where K+ potential is balanced by the membrane potential • range -50 to -100 millivolts (mV) • Cells become polarized • Results from Na+ and K+ concentration gradients across the membrane • Steady state – mai ...
... • Voltage (electrical potential) across a membrane • Resting membrane potential – the point where K+ potential is balanced by the membrane potential • range -50 to -100 millivolts (mV) • Cells become polarized • Results from Na+ and K+ concentration gradients across the membrane • Steady state – mai ...
Cells and Tissues - Mrs. Hille`s FunZone
... Solution – homogeneous mixture of two or more components Solvent – dissolving medium Solutes – components in smaller quantities within a solution Intracellular fluid – nucleoplasm and cytosol Interstitial fluid – fluid on the exterior of the cell Selective Permeability The plasma membran ...
... Solution – homogeneous mixture of two or more components Solvent – dissolving medium Solutes – components in smaller quantities within a solution Intracellular fluid – nucleoplasm and cytosol Interstitial fluid – fluid on the exterior of the cell Selective Permeability The plasma membran ...
7.1 What are cells?
... • The cell theory explains Archive/Archive Photos/Getty Images the relationship between cells and living things. ...
... • The cell theory explains Archive/Archive Photos/Getty Images the relationship between cells and living things. ...
Cell-Rubric
... Build a 3-dimensional model of a cell that illustrates all of the basic parts of the cell. Your cell model should have the following characteristics: Major organelles named and labeled Show the 3-dimensional nature of cells Be a typical plant or animal cell-your choice Come with definitions ...
... Build a 3-dimensional model of a cell that illustrates all of the basic parts of the cell. Your cell model should have the following characteristics: Major organelles named and labeled Show the 3-dimensional nature of cells Be a typical plant or animal cell-your choice Come with definitions ...
Cells Cells Cells Cells Cells Cells
... Water, oxygen, carbon dioxide, and amino acids move freely across the membrane b/c they’re small molecules. Proteins, carbohydrates, & ions need help from protein pumps b/c they’re bigger (ions because they’re charged)! ...
... Water, oxygen, carbon dioxide, and amino acids move freely across the membrane b/c they’re small molecules. Proteins, carbohydrates, & ions need help from protein pumps b/c they’re bigger (ions because they’re charged)! ...
cetisPV- Contact1
... cetisPV-Contact 1 is designed to be used for manual or semi-automatic cell testers in laboratory or in small production environments. cetisPV-Contact1 is a highly flexible electric contacting system for solar cells of different sizes and different bus bar layouts. The width of the three bus bars as ...
... cetisPV-Contact 1 is designed to be used for manual or semi-automatic cell testers in laboratory or in small production environments. cetisPV-Contact1 is a highly flexible electric contacting system for solar cells of different sizes and different bus bar layouts. The width of the three bus bars as ...
Cell City Analogy
... the town has something to do with steel widget making and the entire town is designed to build and export widgets. The town hall has the instructions for widget making. Widgets come in all shapes and sizes and any citizen of Amoeba can get the instructions and begin making widgets. Widgets are gener ...
... the town has something to do with steel widget making and the entire town is designed to build and export widgets. The town hall has the instructions for widget making. Widgets come in all shapes and sizes and any citizen of Amoeba can get the instructions and begin making widgets. Widgets are gener ...
Cell-abrationLab
... Make wet mounts and sketch (pencil & colored pencil) as many of the available specimens as possible. See Table 1. Your sketches must include cells from at least two different Kingdoms within Domain Eukarya. Your teacher will ask that everyone in the class include a particular specimen (see step 4). ...
... Make wet mounts and sketch (pencil & colored pencil) as many of the available specimens as possible. See Table 1. Your sketches must include cells from at least two different Kingdoms within Domain Eukarya. Your teacher will ask that everyone in the class include a particular specimen (see step 4). ...
Moving Cellular Material Chapter 2 Lesson 3
... concentration to high solute concentration The cell uses energy (ATP) to actively transport Na+ out of the cell and K+ into the cell against the concentration gradient ...
... concentration to high solute concentration The cell uses energy (ATP) to actively transport Na+ out of the cell and K+ into the cell against the concentration gradient ...
cell webquest
... 17. Which type of cell forms a protective layer for your body?_____________________________ 18. Which of the following are the smallest organisms on Earth?___________________________ 19. The statement that all cells come from cells that already exist is part of _________________. 20. Cytoplasm is ma ...
... 17. Which type of cell forms a protective layer for your body?_____________________________ 18. Which of the following are the smallest organisms on Earth?___________________________ 19. The statement that all cells come from cells that already exist is part of _________________. 20. Cytoplasm is ma ...
Chapter 3 The Basic Structure of a Cell
... Prokaryotes Nucleoid region contains the DNA •Cell membrane & cell wall • Contain ribosomes (no membrane) to make proteins in their cytoplasm ...
... Prokaryotes Nucleoid region contains the DNA •Cell membrane & cell wall • Contain ribosomes (no membrane) to make proteins in their cytoplasm ...
How substances get in and out of cells - questions
... 5 (a) Which one of the following is the best definition of osmosis? (i) The movement of water from a concentrated solution to a dilute solution across a partially permeable membrane. . (ii) The movement of a dissolved substance from a concentrated solution to a dilute solution across a partially per ...
... 5 (a) Which one of the following is the best definition of osmosis? (i) The movement of water from a concentrated solution to a dilute solution across a partially permeable membrane. . (ii) The movement of a dissolved substance from a concentrated solution to a dilute solution across a partially per ...
Lymphocytes
... Lymphocytes are wholly responsible for the specific immune recognition of pathogens, so they initiate adaptive immune response. They represent about 20% of the total white blood cells (leukocyte) present in the adult circulation. Lymphocytes are comprised of three separate populations, T cells, B ce ...
... Lymphocytes are wholly responsible for the specific immune recognition of pathogens, so they initiate adaptive immune response. They represent about 20% of the total white blood cells (leukocyte) present in the adult circulation. Lymphocytes are comprised of three separate populations, T cells, B ce ...
The Lymphatic System and Immunity
... Directly attack antigens Active complement to attack the antigens Stimulate changes in local areas that help prevent the spread of pathogens or cells bearing foreign antigens HIV Antibody test ...
... Directly attack antigens Active complement to attack the antigens Stimulate changes in local areas that help prevent the spread of pathogens or cells bearing foreign antigens HIV Antibody test ...
Unit 2 Test Review
... 1. What is the main function of the following cell organelles? (think about what would happen to cell function if these organelles didn’t work or were absent) a. Nucleus controls cellular activities & contains genetic info b. Mitochondria breaks down glucose (sugar) molecules to release energy in th ...
... 1. What is the main function of the following cell organelles? (think about what would happen to cell function if these organelles didn’t work or were absent) a. Nucleus controls cellular activities & contains genetic info b. Mitochondria breaks down glucose (sugar) molecules to release energy in th ...
Diffusion, Osmosis, and Active Transport
... Moths emit (give off to the air) chemicals called pheromones to attract a mate. a) Which process is responsible for the distribution of these chemicals through the air? ...
... Moths emit (give off to the air) chemicals called pheromones to attract a mate. a) Which process is responsible for the distribution of these chemicals through the air? ...
Microbiology-1-Diversity
... Microbial diversity Oxygen: • Some microorganism requires oxygen for growth called • Other organism can be inhibited by the presence of oxygen which is called ...
... Microbial diversity Oxygen: • Some microorganism requires oxygen for growth called • Other organism can be inhibited by the presence of oxygen which is called ...
Organelle Practice Test/Study Guide Organelle REVIEW
... Explain why the cell can be described as a coordinated unit? What would you expect to occur in a cell with a large amount of: a. chloroplasts, b. mitochondria, c. ribosomes, d. smooth ER, e. rough ER ...
... Explain why the cell can be described as a coordinated unit? What would you expect to occur in a cell with a large amount of: a. chloroplasts, b. mitochondria, c. ribosomes, d. smooth ER, e. rough ER ...
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).