
Cell Analogy – Performance Assessment
... You will pick something in the world and compare it to a cell You must draw the analogous item and label the parts you are comparing to 5 organelles. You must: Title your paper: A ___________ is like a ________Cell. You must decide if you are comparing it to a plant or animal cell. Pick any 5 or ...
... You will pick something in the world and compare it to a cell You must draw the analogous item and label the parts you are comparing to 5 organelles. You must: Title your paper: A ___________ is like a ________Cell. You must decide if you are comparing it to a plant or animal cell. Pick any 5 or ...
The Basic Unit of Life
... 2. a) are onion cells produced by plants or animals?______________________________ b) Is a cell wall present?__________________________________________________ 3. a) Describe the shape of the nucleus of an onion cell.___________________________ b) Within what cell part already studied does the nucle ...
... 2. a) are onion cells produced by plants or animals?______________________________ b) Is a cell wall present?__________________________________________________ 3. a) Describe the shape of the nucleus of an onion cell.___________________________ b) Within what cell part already studied does the nucle ...
Chapter 5 - Moore Public Schools
... called the __________________________. 2. Because of the cell cycle, organisms grow and __________________________, replace old or damaged cells, and produce new cells. B. Phases of the Cell Cycle 1. T ...
... called the __________________________. 2. Because of the cell cycle, organisms grow and __________________________, replace old or damaged cells, and produce new cells. B. Phases of the Cell Cycle 1. T ...
Plant and Animal Cells!
... The cell wall is like a hard plastic container. It protects the insides of the cell. A chloroplast has chlorophyll in it. This is a chemical used in photosynthesis. Photosynthesis takes energy from the sun and changes it to chemical energy that the plant can use. Chloroplasts, like mitochondria, con ...
... The cell wall is like a hard plastic container. It protects the insides of the cell. A chloroplast has chlorophyll in it. This is a chemical used in photosynthesis. Photosynthesis takes energy from the sun and changes it to chemical energy that the plant can use. Chloroplasts, like mitochondria, con ...
The Incredible Edible Cell Model
... #2 Create a 3-D cell model It can be out of any nonfood material like paper Mache, styrene, clay, cardboard, etc…. #3 Author a PowerPoint slide show on cell biology. It must have at least 10 slides but no more ...
... #2 Create a 3-D cell model It can be out of any nonfood material like paper Mache, styrene, clay, cardboard, etc…. #3 Author a PowerPoint slide show on cell biology. It must have at least 10 slides but no more ...
Class Notes
... He is selective: allows some things to pass through more easily than others He is selectively permeable: permeate is a fancy way to say “pass through.” The cell membrane is NOT a rigid structure with immovable components! The cell membrane is fluid-like and flexible Within the membrane, molecules ca ...
... He is selective: allows some things to pass through more easily than others He is selectively permeable: permeate is a fancy way to say “pass through.” The cell membrane is NOT a rigid structure with immovable components! The cell membrane is fluid-like and flexible Within the membrane, molecules ca ...
tissues and organs
... Figure 1.8 (a) There is a higher concentration of substances on one side of the cell membrane. (b) The substances move to the side that has a lower concentration until a balanced state, called equilibrium, is attained. (c) When equilibrium is reached, the substances diffuse across the cell membrane ...
... Figure 1.8 (a) There is a higher concentration of substances on one side of the cell membrane. (b) The substances move to the side that has a lower concentration until a balanced state, called equilibrium, is attained. (c) When equilibrium is reached, the substances diffuse across the cell membrane ...
Require energy (ATP) - Olympic High School
... Describe what properties allow a molecule to pass through a phospholipid membrane and what properties prevent a molecule from passing through a phospholipid membrane. ...
... Describe what properties allow a molecule to pass through a phospholipid membrane and what properties prevent a molecule from passing through a phospholipid membrane. ...
HERE
... 2. The __Cell membrane_ is made of a double layer of phospholipids. The double layer of phospholipids is called a(n) _lipid bilayer __. 3. The lipid bilayer forms because there is __water__ both inside and _outside_ of the cell. 4. The phosphate _head_ of a phospholipid is polar. It is _attracted_ t ...
... 2. The __Cell membrane_ is made of a double layer of phospholipids. The double layer of phospholipids is called a(n) _lipid bilayer __. 3. The lipid bilayer forms because there is __water__ both inside and _outside_ of the cell. 4. The phosphate _head_ of a phospholipid is polar. It is _attracted_ t ...
2. Cell Transport Mechanisms
... in the cell membrane & have a pore for materials to cross • Carrier proteins can change shape to move material from one side of the membrane to the other ...
... in the cell membrane & have a pore for materials to cross • Carrier proteins can change shape to move material from one side of the membrane to the other ...
Cellular Transport Notes
... the cell to swell and possibly explode/burst. Isotonic Solutions: contain the SAME concentration of solute as another solution. When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. ...
... the cell to swell and possibly explode/burst. Isotonic Solutions: contain the SAME concentration of solute as another solution. When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. ...
Unit 7 - Cobb Learning
... DNA stands for: ________________________________________ RNA stands for: ________________________________________ Where does DNA “live”? In the ___________________ ...
... DNA stands for: ________________________________________ RNA stands for: ________________________________________ Where does DNA “live”? In the ___________________ ...
Microbes PowerPoint
... don’t have a genome, convert normal brain proteins into prion particles. (only contains a protein.) Causes a number of degenerative brain diseases Creutzfeldt-Jakob, mad cow disease ...
... don’t have a genome, convert normal brain proteins into prion particles. (only contains a protein.) Causes a number of degenerative brain diseases Creutzfeldt-Jakob, mad cow disease ...
Chapter 4 Section 1 Worksheet
... 13. During ___________________ (phase 4) the cell begins to divide into two cells. Close to the equator of the cell, the cell begins to “pinch inward. This area is called the cleavage furrow. This is the location where new cell membranes will be forming for each cell. Now mitosis has completed and w ...
... 13. During ___________________ (phase 4) the cell begins to divide into two cells. Close to the equator of the cell, the cell begins to “pinch inward. This area is called the cleavage furrow. This is the location where new cell membranes will be forming for each cell. Now mitosis has completed and w ...
Lect19.RNA.part2
... Random X Inactivation Mediated by Xic, Xist, and Tsix Random X chromosome inactivation mediated by interaction of X inactivation centers (Xics) on two X chromosomes of female cells. Xic interaction first triggers transcription of Xist and Tsix RNAs from each X chromosome. Xist and Tsix are large RN ...
... Random X Inactivation Mediated by Xic, Xist, and Tsix Random X chromosome inactivation mediated by interaction of X inactivation centers (Xics) on two X chromosomes of female cells. Xic interaction first triggers transcription of Xist and Tsix RNAs from each X chromosome. Xist and Tsix are large RN ...
Signal Receptors 4 types
... signaling pathways regulate the synthesis of enzymes or other proteins, usually by turning genes on or off in the nucleus ...
... signaling pathways regulate the synthesis of enzymes or other proteins, usually by turning genes on or off in the nucleus ...
Lisa
... There is only ONE NUCLEUS in a cell. (only Eukaryotic cells have a nucleus). It is very important because it contains the cell’s information – DNA. Usually, the nucleus is the largest organelle in the cell. It is surrounded by a double membrane – the nuclear envelope. Nuclear pores on the nuclear en ...
... There is only ONE NUCLEUS in a cell. (only Eukaryotic cells have a nucleus). It is very important because it contains the cell’s information – DNA. Usually, the nucleus is the largest organelle in the cell. It is surrounded by a double membrane – the nuclear envelope. Nuclear pores on the nuclear en ...
Prokaryotes and Eukaryotes
... Structurally, a bacterial cell has three architectural regions: appendages (attachments to the cell surface) in the form of flagella and pili (or fimbriae); a cell envelope consisting of a capsule, cell wall and plasma membrane; and a cytoplasmic region that contains the cell chromosome (DNA) and ri ...
... Structurally, a bacterial cell has three architectural regions: appendages (attachments to the cell surface) in the form of flagella and pili (or fimbriae); a cell envelope consisting of a capsule, cell wall and plasma membrane; and a cytoplasmic region that contains the cell chromosome (DNA) and ri ...
Looking Inside Cells PPT
... The nucleus knows how to direct the cell through the thin strands floating directly ahead in the nucleus. These strands are called chromatin. They contain the genetic material, the instructions that direct the functions of a cell. For example, the instructions in the chromatin ensure that leaf cells ...
... The nucleus knows how to direct the cell through the thin strands floating directly ahead in the nucleus. These strands are called chromatin. They contain the genetic material, the instructions that direct the functions of a cell. For example, the instructions in the chromatin ensure that leaf cells ...
To Understand The Organization Of Cranial nerves
... motor neurons (SE) or preganglionic parasympathetic neurons (VE). III. Motor Efferent Nuclei (Basal Plate Derivatives): 1. SE (Somatic Efferent) Nuclei: SE neurons form two longitudinally oriented but discontinuous columns of cell bodies in the brain stem. Neurons that comprise these columns are res ...
... motor neurons (SE) or preganglionic parasympathetic neurons (VE). III. Motor Efferent Nuclei (Basal Plate Derivatives): 1. SE (Somatic Efferent) Nuclei: SE neurons form two longitudinally oriented but discontinuous columns of cell bodies in the brain stem. Neurons that comprise these columns are res ...
Cell nucleus

In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.