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Study Guide for Science Test
... Osmosis: A type of diffusion that is specifically the movement of water and dissolved materials through the cell membrane. Tissue: Cells that work together to perform a specific function. Organ: Tissues that work together. Organ System: Organs that work together to perform a function. Mitosis: The p ...
... Osmosis: A type of diffusion that is specifically the movement of water and dissolved materials through the cell membrane. Tissue: Cells that work together to perform a specific function. Organ: Tissues that work together. Organ System: Organs that work together to perform a function. Mitosis: The p ...
THE CELL – STRUCTURE AND FUNCTION All living things are
... All living things are composed of cells. Although individual cells may be modified to perform specific functions, most animal and plant cells share many basic structures. Important cellular terms: 1. PROKARYOTE: a cell without a true nucleus ex. bacteria 2. EUKARYOTE: a cell with a true nucleus and ...
... All living things are composed of cells. Although individual cells may be modified to perform specific functions, most animal and plant cells share many basic structures. Important cellular terms: 1. PROKARYOTE: a cell without a true nucleus ex. bacteria 2. EUKARYOTE: a cell with a true nucleus and ...
chapter 7 a tour of the cell
... 3) Draw a cell membrane and label 2 components 4) Two molecules, CO2 and H2O can cross the lipid bilayer without help from membrane bound proteins, what allows them to do this? ...
... 3) Draw a cell membrane and label 2 components 4) Two molecules, CO2 and H2O can cross the lipid bilayer without help from membrane bound proteins, what allows them to do this? ...
Cell Organelles and their Functions
... Contains its own DNA and RNA Present in both plant and animal C cells ...
... Contains its own DNA and RNA Present in both plant and animal C cells ...
Science 8 Jeopardy 1. Why are humans more like animals than
... 12. The green organelle in plant cells that absorb the sun’s energy (chloroplasts) 13. The organelle that stores water and is larger in plant cells (vacuole) 14. The control center of the cell (nucleus) 15. The organelle found on ER (ribosomes) 16. A unicellular organism that can make you ...
... 12. The green organelle in plant cells that absorb the sun’s energy (chloroplasts) 13. The organelle that stores water and is larger in plant cells (vacuole) 14. The control center of the cell (nucleus) 15. The organelle found on ER (ribosomes) 16. A unicellular organism that can make you ...
Chapter 5: Cell Transport
... III. Facilitated Diffusion – diffusion assisted by specific proteins called carrier proteins Steps in Facilitated Diffusion a) Carrier protein binds to molecule b) Carrier protein changes shape, protecting molecule from the interior of cell membrane c) Molecule is released on other side, protein re ...
... III. Facilitated Diffusion – diffusion assisted by specific proteins called carrier proteins Steps in Facilitated Diffusion a) Carrier protein binds to molecule b) Carrier protein changes shape, protecting molecule from the interior of cell membrane c) Molecule is released on other side, protein re ...
S10 Key BLM 8-6 7 - Cochrane High School
... concentration gradient. Carrier proteins recognize specific molecules because of their size and shape. The molecule to be carried fits into a groove in the protein, much like a lock and key. B. Diffusion (O2) and osmosis (H2O): Diffusion is the movement of particles from an area of high concentratio ...
... concentration gradient. Carrier proteins recognize specific molecules because of their size and shape. The molecule to be carried fits into a groove in the protein, much like a lock and key. B. Diffusion (O2) and osmosis (H2O): Diffusion is the movement of particles from an area of high concentratio ...
Function
... phosphate “head” which is hydrophilic (waterloving) and two non-polar fatty-acid “tails” that are hydrophobic (water-fearing); arranged in a bilayer with the hydrophilic heads facing the inside and the outside of the cell – Fluid mosaic model – plasma membrane behaves more like a fluid than a solid; ...
... phosphate “head” which is hydrophilic (waterloving) and two non-polar fatty-acid “tails” that are hydrophobic (water-fearing); arranged in a bilayer with the hydrophilic heads facing the inside and the outside of the cell – Fluid mosaic model – plasma membrane behaves more like a fluid than a solid; ...
Cells, Tissues, & Organs
... • Nucleus – control center of the cell • DNA (genetic material) is located inside of the nucleus • Nucleoli (inside nucleus) produce ribosomes ...
... • Nucleus – control center of the cell • DNA (genetic material) is located inside of the nucleus • Nucleoli (inside nucleus) produce ribosomes ...
Cell Organelles
... rough ER or floating free in Cytoplasm Produced in a part of the nucleus called the nucleolus That looks familiar…what is a polypeptide? ...
... rough ER or floating free in Cytoplasm Produced in a part of the nucleus called the nucleolus That looks familiar…what is a polypeptide? ...
Structure and Function of Cells
... Strong, stiff, nonliving layer outside the cell membrane; can be made of cellulose Outermost living layer of the cell; elastic and flexible; contains pores Region between the nucleus and the cell membrane; consists of a jellylike substance that contains many organelles Large, oval structure in the c ...
... Strong, stiff, nonliving layer outside the cell membrane; can be made of cellulose Outermost living layer of the cell; elastic and flexible; contains pores Region between the nucleus and the cell membrane; consists of a jellylike substance that contains many organelles Large, oval structure in the c ...
Cell-cell communication Cell-cell communication is distance
... either (a) in the cytosol, or (b) in the nucleus. This messengerreceptor complex acts as a transcription factor, and results in ...
... either (a) in the cytosol, or (b) in the nucleus. This messengerreceptor complex acts as a transcription factor, and results in ...
Cell organelle powerpoint
... Mitochondrion is like a crankshaft because it helps turn the motor and give it power ...
... Mitochondrion is like a crankshaft because it helps turn the motor and give it power ...
Cell Transport
... a membrane: 1. Hypertonic –solute is in high concentration so water is low. 2. Hypotonic – solute is in low concentration so water is high. 3. Isotonic – solute concentration is equal on both sides. ...
... a membrane: 1. Hypertonic –solute is in high concentration so water is low. 2. Hypotonic – solute is in low concentration so water is high. 3. Isotonic – solute concentration is equal on both sides. ...
Cells
... Every organism is made of one or more cells. Cell is the smallest unit that has all of the basic properties of life. Cells come from preexisting cells. ...
... Every organism is made of one or more cells. Cell is the smallest unit that has all of the basic properties of life. Cells come from preexisting cells. ...
Ribosomes (20-30nm)
... o Part of the plasma membrane sinks into the cell o Forms a vesicle with substances from outside o Seals back onto the plasma membrane again o Phagocytosis: endocytosis brings solid material into the cell o Pinocytosis: endocytosis brings fluid materials into the cell ...
... o Part of the plasma membrane sinks into the cell o Forms a vesicle with substances from outside o Seals back onto the plasma membrane again o Phagocytosis: endocytosis brings solid material into the cell o Pinocytosis: endocytosis brings fluid materials into the cell ...
Cells and Cell Theory
... b. Carrier-Facilitated Diffusion - movement of molecules that are large or electrically charged across membranes facilitated by carrier proteins. These carrier proteins collectively called permeases and are embedded in the plasma membrane. Example: Glucose and other chemicals may enter cells this wa ...
... b. Carrier-Facilitated Diffusion - movement of molecules that are large or electrically charged across membranes facilitated by carrier proteins. These carrier proteins collectively called permeases and are embedded in the plasma membrane. Example: Glucose and other chemicals may enter cells this wa ...
Notes-Organelles - Svetz-wiki
... --flattened stacks of membranes --functions in collection, packaging and distribution of molecules made in the cell and used elsewhere -- front end (cis) faces the ER, and the back end (trans) faces the cell membrane --the folded stacks are called cisternae --unprocessed proteins enter the Golgi app ...
... --flattened stacks of membranes --functions in collection, packaging and distribution of molecules made in the cell and used elsewhere -- front end (cis) faces the ER, and the back end (trans) faces the cell membrane --the folded stacks are called cisternae --unprocessed proteins enter the Golgi app ...
LEARNING GOALS - Cell Membranes
... Passive transport plays a primary role in the import of resources and the export of wastes. Membrane proteins play a role in facilitated diffusion of charged and polar molecules through a membrane. (Examples include glucose transport and Na+/K+ transport.) 3. External environments can be hypotonic, ...
... Passive transport plays a primary role in the import of resources and the export of wastes. Membrane proteins play a role in facilitated diffusion of charged and polar molecules through a membrane. (Examples include glucose transport and Na+/K+ transport.) 3. External environments can be hypotonic, ...
Biology
... BIG IDEA: How are prokaryotic and eukaryotic cells different? A. Cells membrane: They are like: Also called: ...
... BIG IDEA: How are prokaryotic and eukaryotic cells different? A. Cells membrane: They are like: Also called: ...
Homeostasis and the cell membrane
... relationships between structures and functions in living cells. a. Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis and cell reproduction. d. Explain the impact of water on life processes (i.e., osmosis, diffus ...
... relationships between structures and functions in living cells. a. Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis and cell reproduction. d. Explain the impact of water on life processes (i.e., osmosis, diffus ...
Cell Structure and Function Cells
... • Helps move substances within cells • Network of interconnected membranes ...
... • Helps move substances within cells • Network of interconnected membranes ...
Cytosol
![](https://en.wikipedia.org/wiki/Special:FilePath/Crowded_cytosol.png?width=300)
The cytosol or intracellular fluid (ICF) or cytoplasmic matrix is the liquid found inside cells. It is separated into compartments by membranes. For example, the mitochondrial matrix separates the mitochondrion into many compartments.In the eukaryotic cell, the cytosol is within the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. In prokaryotes, most of the chemical reactions of metabolism take place in the cytosol, while a few take place in membranes or in the periplasmic space. In eukaryotes, while many metabolic pathways still occur in the cytosol, others are contained within organelles.The cytosol is a complex mixture of substances dissolved in water. Although water forms the large majority of the cytosol, its structure and properties within cells is not well understood. The concentrations of ions such as sodium and potassium are different in the cytosol than in the extracellular fluid; these differences in ion levels are important in processes such as osmoregulation, cell signaling, and the generation of action potentials in excitable cells such as endocrine, nerve and muscle cells. The cytosol also contains large amounts of macromolecules, which can alter how molecules behave, through macromolecular crowding.Although it was once thought to be a simple solution of molecules, the cytosol has multiple levels of organization. These include concentration gradients of small molecules such as calcium, large complexes of enzymes that act together to carry out metabolic pathways, and protein complexes such as proteasomes and carboxysomes that enclose and separate parts of the cytosol.