The Cell - Leon County Schools
... Directions: Use the phrases below to complete the diagram. Write what is different about prokaryotic and eukaryotic cells in the top boxes. Write what is similar about them in the bottom box. ...
... Directions: Use the phrases below to complete the diagram. Write what is different about prokaryotic and eukaryotic cells in the top boxes. Write what is similar about them in the bottom box. ...
Water relations in Animals
... A. Osmosis and Animal cells Osmosis is the movement of ______________ molecules from a weaker (less concentrated) solution to a stronger (more concentrated) solution through a ________________ permeable membrane. Water potential is a measure of the _______ ___________ possessed by the water molecule ...
... A. Osmosis and Animal cells Osmosis is the movement of ______________ molecules from a weaker (less concentrated) solution to a stronger (more concentrated) solution through a ________________ permeable membrane. Water potential is a measure of the _______ ___________ possessed by the water molecule ...
Notes
... • Some regions stacked into layers called grana. • Contain the green pigment chlorophyll. ...
... • Some regions stacked into layers called grana. • Contain the green pigment chlorophyll. ...
The dog`s saliva must prevent the growth of
... A city street has never before had life growing from it. 21. What is secondary succession? When organisms colonize an area that once had life that was wiped out Give an example. natural disaster or human actions disrupting or destroying a community ...
... A city street has never before had life growing from it. 21. What is secondary succession? When organisms colonize an area that once had life that was wiped out Give an example. natural disaster or human actions disrupting or destroying a community ...
Cells - Northeast High School
... the various nutrients that are required to help a cell carry out life functions. Some of the substances are glucose, oxygen, and water. Finally, cells need to move whether it be towards or away from food sources or other organisms that will ingest them. A cell is highly diverse and complex and must ...
... the various nutrients that are required to help a cell carry out life functions. Some of the substances are glucose, oxygen, and water. Finally, cells need to move whether it be towards or away from food sources or other organisms that will ingest them. A cell is highly diverse and complex and must ...
Active Transport
... have to have signi cant energy to move materials against a concentration gradient. The process which cells use to do that is called active transport. Active transport mechanisms require the use of the cell's energy, usually in the form of adenosine triphosphate (ATP). If a substance must move into t ...
... have to have signi cant energy to move materials against a concentration gradient. The process which cells use to do that is called active transport. Active transport mechanisms require the use of the cell's energy, usually in the form of adenosine triphosphate (ATP). If a substance must move into t ...
File
... organisms to use for respiration (breathing) -have organelles called chloroplasts, which capture energy from the sun -in many plants, cells are organized into tissues and organs -common organs are roots, stems & leaves ...
... organisms to use for respiration (breathing) -have organelles called chloroplasts, which capture energy from the sun -in many plants, cells are organized into tissues and organs -common organs are roots, stems & leaves ...
Characteristics discussion
... Absorptive Can live in colonies Live in/near water Examples - Amoebas and dinoflagellates ...
... Absorptive Can live in colonies Live in/near water Examples - Amoebas and dinoflagellates ...
Cell Poster Project
... listed on the next page. Choose your list of organelles based upon whether or not you want to make a poster of a plant cell or an animal cell (for this assignment, each has the same number of organelles). The key to earning the maximum number of points for this assignment is to be as accurate as you ...
... listed on the next page. Choose your list of organelles based upon whether or not you want to make a poster of a plant cell or an animal cell (for this assignment, each has the same number of organelles). The key to earning the maximum number of points for this assignment is to be as accurate as you ...
Cell Structure I
... Cylinders composed of tubulin found in any orientation within the cytoplasm Converge on centrosome and terminate near centrioles Conspicuous in dividing cells. Subunit is a heterodimer of α and B tubulin each has a mass of about 50KD. Tubulin subunits dimerize under the correct conditions ...
... Cylinders composed of tubulin found in any orientation within the cytoplasm Converge on centrosome and terminate near centrioles Conspicuous in dividing cells. Subunit is a heterodimer of α and B tubulin each has a mass of about 50KD. Tubulin subunits dimerize under the correct conditions ...
Cell Structure I
... Cylinders composed of tubulin found in any orientation within the cytoplasm Converge on centrosome and terminate near centrioles Conspicuous in dividing cells. Subunit is a heterodimer of α and B tubulin each has a mass of about 50KD. Tubulin subunits dimerize under the correct conditions ...
... Cylinders composed of tubulin found in any orientation within the cytoplasm Converge on centrosome and terminate near centrioles Conspicuous in dividing cells. Subunit is a heterodimer of α and B tubulin each has a mass of about 50KD. Tubulin subunits dimerize under the correct conditions ...
1
... A network of protein fibers, collectively called the CYTOSKELETON, extending throughout the cytoplasm of the cell. These fibers function like a skeleton in providing for both structural support and cell motility. These movements generally require the interaction of the cytoskeleton with proteins ca ...
... A network of protein fibers, collectively called the CYTOSKELETON, extending throughout the cytoplasm of the cell. These fibers function like a skeleton in providing for both structural support and cell motility. These movements generally require the interaction of the cytoskeleton with proteins ca ...
Name: : :__
... 1. Move your mouse over the plant cell to see the names of the organelles. Name five organelles found in a plant cell that were also studied in the animal cells questions above. ...
... 1. Move your mouse over the plant cell to see the names of the organelles. Name five organelles found in a plant cell that were also studied in the animal cells questions above. ...
Cell Theory and Organelle Review Sheet 2014
... 2. Explain what happens to a protein once it leaves the rough ER. ...
... 2. Explain what happens to a protein once it leaves the rough ER. ...
Chapter 3 Notes File
... – An area of the cytoplasm near the nucleus that coordinates the building and breaking of microtubules in the cell – Nonmembranous structure also called the microtubule-organizing center (MTOC) – Plays an important role during cell division – The general location of the centrosome is identified by t ...
... – An area of the cytoplasm near the nucleus that coordinates the building and breaking of microtubules in the cell – Nonmembranous structure also called the microtubule-organizing center (MTOC) – Plays an important role during cell division – The general location of the centrosome is identified by t ...
Cell Structure I
... A matrix (cytosol) containing organelles, the cytoskeleton and deposits of carbohydrates, lipids and proteins; separated from the extracellular environment by the plasma membrane (plasmalemma). Plasma Membrane (PM) A limiting membrane composed of phospholipids, cholesterol, proteins and oligosacchar ...
... A matrix (cytosol) containing organelles, the cytoskeleton and deposits of carbohydrates, lipids and proteins; separated from the extracellular environment by the plasma membrane (plasmalemma). Plasma Membrane (PM) A limiting membrane composed of phospholipids, cholesterol, proteins and oligosacchar ...
Cell Walls - Mrothery.co.uk
... permeable. Many types of organisms have cell walls, but animals do not. The most commonly known about cell wall is the plant cell wall, which usually consists of cellulose. Cellulose is a polysaccharide composed of beta-glucose monomers. These form long straight chains joined by hydrogen bonds: Hydr ...
... permeable. Many types of organisms have cell walls, but animals do not. The most commonly known about cell wall is the plant cell wall, which usually consists of cellulose. Cellulose is a polysaccharide composed of beta-glucose monomers. These form long straight chains joined by hydrogen bonds: Hydr ...
Plant resources and transport
... O2 in; CO2 out roots exchange gases within air spaces in soil ...
... O2 in; CO2 out roots exchange gases within air spaces in soil ...
Cell Membrane Transport
... The difference within a given area between the highest and lowest concentration of a given substance. ...
... The difference within a given area between the highest and lowest concentration of a given substance. ...
Chapter 1, Lesson 4 - Mahtomedi Middle School
... Movement of materials across a cell membrane using cellular energy ◦ Molecules move from areas of lower concentration to higher concentration ◦ Proteins move these molecules across the cell membrane – (see figure 4) ...
... Movement of materials across a cell membrane using cellular energy ◦ Molecules move from areas of lower concentration to higher concentration ◦ Proteins move these molecules across the cell membrane – (see figure 4) ...
1 - Lone Star College
... Produces gametes (sex cells) Stages of mitoses are repeated twice Gametes (sperm or ova) that results have half the normal number of chromosomes ...
... Produces gametes (sex cells) Stages of mitoses are repeated twice Gametes (sperm or ova) that results have half the normal number of chromosomes ...
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)↑ ↑ ↑ ↑ ↑ ↑