Cell Processes - cloudfront.net
... 1. What are the levels of cell organization? CellTissueOrganOrgan SystemIndividual Organism 2. What do eukaryotes have that prokaryotes don’t have? Eukaryotes contain a nucleus and membrane bound organelles Organelles- compartment for carrying out a specific job/reaction • Chloroplast: Photosynt ...
... 1. What are the levels of cell organization? CellTissueOrganOrgan SystemIndividual Organism 2. What do eukaryotes have that prokaryotes don’t have? Eukaryotes contain a nucleus and membrane bound organelles Organelles- compartment for carrying out a specific job/reaction • Chloroplast: Photosynt ...
Cell Transport - Elmwood Park Memorial High School
... Hypotonic • Concentration of solute molecules outside the cell is lower than the concentration in the cytosol. • Water diffuses into the cell until equilibrium is established. ...
... Hypotonic • Concentration of solute molecules outside the cell is lower than the concentration in the cytosol. • Water diffuses into the cell until equilibrium is established. ...
Cell Due2/25-26
... ____ 26. The primary function of the cell wall is to a. support and protect the cell. b. store DNA. c. direct the activities of the cell. d. help the cell move. ____ 27. Unlike the cell membrane, the cell wall is a. found in all organisms. b. composed of a lipid bilayer. c. selectively permeable. d. ...
... ____ 26. The primary function of the cell wall is to a. support and protect the cell. b. store DNA. c. direct the activities of the cell. d. help the cell move. ____ 27. Unlike the cell membrane, the cell wall is a. found in all organisms. b. composed of a lipid bilayer. c. selectively permeable. d. ...
lecture notes
... -In 1665, Robert Hooke described cells using a light microscope. -A light microscope is an optical instrument with lenses that refract visible light to magnify images of specimens. -Two important concepts in microscopy are magnification and resolution. Magnification = the ratio of an object’s imag ...
... -In 1665, Robert Hooke described cells using a light microscope. -A light microscope is an optical instrument with lenses that refract visible light to magnify images of specimens. -Two important concepts in microscopy are magnification and resolution. Magnification = the ratio of an object’s imag ...
04_Lecture_Presentation
... 4.19 The extracellular matrix of animal cells functions in support and regulation Animal cells synthesize and secrete an elaborate extracellular matrix (ECM) that – helps hold cells together in tissues and – protects and supports the plasma membrane. – The ECM may attach to a cell through glycopr ...
... 4.19 The extracellular matrix of animal cells functions in support and regulation Animal cells synthesize and secrete an elaborate extracellular matrix (ECM) that – helps hold cells together in tissues and – protects and supports the plasma membrane. – The ECM may attach to a cell through glycopr ...
Cellular Transport Study Guide_PDF
... In the space at the left, write true if the statement is true. If the statement is false, change the italicized term to make the statement true. Write this answer in the blank provided. _______________ 7. A solution in which the concentration of dissolved substances is lower than the concentration i ...
... In the space at the left, write true if the statement is true. If the statement is false, change the italicized term to make the statement true. Write this answer in the blank provided. _______________ 7. A solution in which the concentration of dissolved substances is lower than the concentration i ...
Ch. 8 Honors PP
... - If plant cells are in an isotonic solution, water will not enter and cells become FLACCID (limp) and the plant wilts - If plant cells are in a hypertonic environment water will leave the cell and PLASMOLYSIS occurs; the cells usually ...
... - If plant cells are in an isotonic solution, water will not enter and cells become FLACCID (limp) and the plant wilts - If plant cells are in a hypertonic environment water will leave the cell and PLASMOLYSIS occurs; the cells usually ...
Cell Transport, Osmosis and Diffusion PowerPoint
... hydrophobic tails cluster together away from the cytoplasm, and the hydrophilic heads are attracted to the water in the cytoplasm-----this forms the lipid bi-layer. ...
... hydrophobic tails cluster together away from the cytoplasm, and the hydrophilic heads are attracted to the water in the cytoplasm-----this forms the lipid bi-layer. ...
Prokaryotic Cell Division
... need for a mitotic spindle. However, the FtsZ protein that plays such a vital role in prokaryotic cytokinesis is structurally and functionally very similar to tubulin, the building block of the microtubules that make up the mitotic spindle bers that are necessary for eukaryotes. The formation of a ...
... need for a mitotic spindle. However, the FtsZ protein that plays such a vital role in prokaryotic cytokinesis is structurally and functionally very similar to tubulin, the building block of the microtubules that make up the mitotic spindle bers that are necessary for eukaryotes. The formation of a ...
Endocytosis - Cloudfront.net
... 1) Which type of solution is the cell placed in? 2) What can you conclude about the water concentration inside the cells compared to outside? 3) What can you conclude about the solute concentration inside the cells compared to outside? 4) Using your explanation of osmosis, explain why the cell appea ...
... 1) Which type of solution is the cell placed in? 2) What can you conclude about the water concentration inside the cells compared to outside? 3) What can you conclude about the solute concentration inside the cells compared to outside? 4) Using your explanation of osmosis, explain why the cell appea ...
Name
... 2. After adding distilled water to the plasymolyzed cell what did you observe? __________________ ...
... 2. After adding distilled water to the plasymolyzed cell what did you observe? __________________ ...
Teacher Notes PDF - TI Education
... Q12. Some cells in your glands secrete chemicals called hormones, which often have to be packaged up before being sent out of the cell. Which organelle would you probably find in great numbers in gland cells? Answer: B. golgi apparatus Q13. The cell membrane is made of a lipid bilayer, which is a gr ...
... Q12. Some cells in your glands secrete chemicals called hormones, which often have to be packaged up before being sent out of the cell. Which organelle would you probably find in great numbers in gland cells? Answer: B. golgi apparatus Q13. The cell membrane is made of a lipid bilayer, which is a gr ...
Chapter 5 - Marissa Junior/Senior High School
... Sugar water has reached equilibrium when the sugar is equally distributed throughout the water ...
... Sugar water has reached equilibrium when the sugar is equally distributed throughout the water ...
Single-celled Primary Producers
... • Autotrophic producers living in extreme environments (e.g. hydrothermal vents) • DNA evidence shows dramatic difference from Bacteria Photosynthetic Eukaryotes • Membrane bound organelles including nucleus • Have photosynthetic organelles - chloroplasts • Contain chlorophyll a and accessory pigmen ...
... • Autotrophic producers living in extreme environments (e.g. hydrothermal vents) • DNA evidence shows dramatic difference from Bacteria Photosynthetic Eukaryotes • Membrane bound organelles including nucleus • Have photosynthetic organelles - chloroplasts • Contain chlorophyll a and accessory pigmen ...
Single-celled Primary Producers Diversity of Primary Producers
... • Autotrophic producers living in extreme environments (e.g. hydrothermal vents) • DNA evidence shows dramatic difference from Bacteria Photosynthetic Eukaryotes • Membrane bound organelles including nucleus • Have photosynthetic organelles - chloroplasts • Contain chlorophyll a and accessory pigmen ...
... • Autotrophic producers living in extreme environments (e.g. hydrothermal vents) • DNA evidence shows dramatic difference from Bacteria Photosynthetic Eukaryotes • Membrane bound organelles including nucleus • Have photosynthetic organelles - chloroplasts • Contain chlorophyll a and accessory pigmen ...
Chapter 3 The Basic Structure of a Cell
... of Proteins 1. MARKER proteins – attached to carbohydrate on cell’s surface (help other cells recognize their cell type (heart, ...
... of Proteins 1. MARKER proteins – attached to carbohydrate on cell’s surface (help other cells recognize their cell type (heart, ...
Cell Exam Questions
... You would expect A. the level of water to rise on the left of the membrane. B. the level of water to rise on the right of the membrane. C. the level of water to remain unchanged on both sides of the membrane. D. the concentration of sucrose to increase on the right side of the membrane. ...
... You would expect A. the level of water to rise on the left of the membrane. B. the level of water to rise on the right of the membrane. C. the level of water to remain unchanged on both sides of the membrane. D. the concentration of sucrose to increase on the right side of the membrane. ...
Uncovering the Unexpected Site of Biosynthesis of a Major Cell Wall
... cryofixation using high-pressure freezing to maintain cell ultrastructure and protein antigenicity. They then probed these tissues with anti-MLG antibodies, revealing that MLG is abundant in the cell wall but absent in the Golgi (see figure). The next step was to determine whether CSLF6 is present a ...
... cryofixation using high-pressure freezing to maintain cell ultrastructure and protein antigenicity. They then probed these tissues with anti-MLG antibodies, revealing that MLG is abundant in the cell wall but absent in the Golgi (see figure). The next step was to determine whether CSLF6 is present a ...
7 Cell Parts Packet
... d. An internal membrane system in which components of cell membrane and some proteins are constructed e. Saclike structure that stores materials f. Small particle of RNA and protein that produces protein following instructions from nucleus g. Filled with enzymes used to break down food into particle ...
... d. An internal membrane system in which components of cell membrane and some proteins are constructed e. Saclike structure that stores materials f. Small particle of RNA and protein that produces protein following instructions from nucleus g. Filled with enzymes used to break down food into particle ...
cell
... passive transport, and active transport do not work as well. The cell membrane relies on endocytosis and ...
... passive transport, and active transport do not work as well. The cell membrane relies on endocytosis and ...
C – E – L – L – O
... All living things share at least one characteristic: they all contain cells. Although animals and plants look very different, they also both contain cells that are actually very similar in many ways. In this activity, you examined “typical” animal and plant cells, and many of the organelles are iden ...
... All living things share at least one characteristic: they all contain cells. Although animals and plants look very different, they also both contain cells that are actually very similar in many ways. In this activity, you examined “typical” animal and plant cells, and many of the organelles are iden ...
Cell Organelles
... that can be used by the rest of the cell. They recycle the cell's own organic materials, breaking them down into their building blocks, and returning them to the cytoplasm to be used again. ...
... that can be used by the rest of the cell. They recycle the cell's own organic materials, breaking them down into their building blocks, and returning them to the cytoplasm to be used again. ...
Cytoplasmic streaming
Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of organelles, nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.Cytoplasmic streaming was first discovered in the 1830s. The scientific breakthrough assisted scientists in developing an understanding of the different roles of cells and how they function as the basic operating systems of life.This process occurs through the operation of motor proteins called myosins.These proteins use energy of adenosine triphosphate (ATP) to act as a molecular motor, which slides along actin filaments. This works in a manner that tows the organelles and other cytoplasmic contents in the same direction. Myosin proteins consist of two conjoined proteins. If one protein remains attached to the substrate, the substance acted upon by the protein, such as a microfilament, has the ability to move organelles through the cytoplasm.The green alga genus Chara and other genera in the Division Charophyta, such as Coleochaete, are thought to be the closest relatives of land plants. These haploid organisms contain some of the largest plant cells on earth, a single cell of which can reach up to 10 cm in length. The large size of these cells demands an efficient means to distribute resources, which is enabled via cytoplasmic streaming.Cytoplasmic streaming is strongly dependent upon intracellular pH and temperature. It has been observed that the effect of temperature on cytoplasmic streaming created linear variance and dependence at different high temperatures in comparison to low temperatures. This process is complicated, with temperature alterations in the system increasing its efficiency, with other factors such as the transport of ions across the membrane being simultaneously affected. This is due to cells homeostasis depending upon active transport which may be affected at some critical temperatures.In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.In reference to pH, because actin and myosin are both proteins, strong dependence on pH is expected. The optimal pH at which cytoplasmic streaming is highest, is achieved at neutral pH and decreases at both low and high pH.The flow of cytoplasm may be stopped by:Adding Lugol's iodine solutionAdding Cytochalasin D (dissolved in dimethyl sulfoxide)↑ ↑ ↑ ↑ ↑ ↑