2 ONION SKIN (200x) 3 GREEN LEAF (300x) 4 CHEEK CELLS (900x)
... sections of a fresh onion and peeling off a thin colorless layer between them. This layer was stained with iodine to get better contrast between parts. The skin of an onion section is excellent for study because it is only one cell thick and is easily prepared for observation. Inside the cell wall ( ...
... sections of a fresh onion and peeling off a thin colorless layer between them. This layer was stained with iodine to get better contrast between parts. The skin of an onion section is excellent for study because it is only one cell thick and is easily prepared for observation. Inside the cell wall ( ...
Chapter 5 Section 2
... Another organnelle 5. __________________ - control area of eukaryote cells “brain” - double membrane - inside is a dense material called __________ -composed of individual chromosomes - contain ___________, ______________ The DNA in the nucleus controls all activity in the cell. ...
... Another organnelle 5. __________________ - control area of eukaryote cells “brain” - double membrane - inside is a dense material called __________ -composed of individual chromosomes - contain ___________, ______________ The DNA in the nucleus controls all activity in the cell. ...
Prokaryotic vs eukaryotic: prokaryotic – no internal
... Key organelles to know functions of: mitochondria, chloroplasts (only organelles that can do chemiosmosis – meaning they make ATP!) of course, you also need to know these two for questions on cell respiration and photosynthesis; Ribosomes – make proteins by putting together amino acids based on inst ...
... Key organelles to know functions of: mitochondria, chloroplasts (only organelles that can do chemiosmosis – meaning they make ATP!) of course, you also need to know these two for questions on cell respiration and photosynthesis; Ribosomes – make proteins by putting together amino acids based on inst ...
Basic features of all cells
... All living organisms are composed of cells. They may be unicellular or multicellular. The cell is the structural and functional unit of life. Cells arise from pre-existing cells. All cells have the same basic chemical composition. ...
... All living organisms are composed of cells. They may be unicellular or multicellular. The cell is the structural and functional unit of life. Cells arise from pre-existing cells. All cells have the same basic chemical composition. ...
SB1a Test: Cell Structure and Function Study Guide
... 14) Larger storage organelle in plant cells than in animal cells - vacuole 15) "Intracellular highway" because it is used for transporting proteins from the ribosomes - Endoplasmic reticulum (ER) 16) The “brains” of the cell, that directs cell activities and contains genetic material called chromoso ...
... 14) Larger storage organelle in plant cells than in animal cells - vacuole 15) "Intracellular highway" because it is used for transporting proteins from the ribosomes - Endoplasmic reticulum (ER) 16) The “brains” of the cell, that directs cell activities and contains genetic material called chromoso ...
The Eukaryotic Cell
... Maine power source Sugar is broken down to produce energy Have their own DNA and can divide within cell ...
... Maine power source Sugar is broken down to produce energy Have their own DNA and can divide within cell ...
Chapt 7 review worksheet answers
... separating two solutions. Assume that the water molecules can pass freely through the membrane but salt and starch molecules cannot. When equilibrium is reached, which side will contain the highest fluid level? ...
... separating two solutions. Assume that the water molecules can pass freely through the membrane but salt and starch molecules cannot. When equilibrium is reached, which side will contain the highest fluid level? ...
Cell Quiz - Catawba County Schools
... 1. Which cell structure contains the cell’s genetic material and controls many of the cell’s activities? a. organelle c. cell envelope b. nucleus d. cytoplasm 2. Cells fall into two broad categories, depending on whether they a. have a cell wall. c. have a nucleus. b. contain genetic material. d. co ...
... 1. Which cell structure contains the cell’s genetic material and controls many of the cell’s activities? a. organelle c. cell envelope b. nucleus d. cytoplasm 2. Cells fall into two broad categories, depending on whether they a. have a cell wall. c. have a nucleus. b. contain genetic material. d. co ...
BIO 105 Summer 2013 Chapter 3 Part I – The Cell Cell Theory
... Objectives: By the end of lecture today you should be able to address the following points: 1. What is cell theory? 2. Identify the cellular organelles and their functions. 3. What is the difference between a eukaryotic and prokaryotic cell? 4. What are the major parts of a eukaryotic cell? 5. Descr ...
... Objectives: By the end of lecture today you should be able to address the following points: 1. What is cell theory? 2. Identify the cellular organelles and their functions. 3. What is the difference between a eukaryotic and prokaryotic cell? 4. What are the major parts of a eukaryotic cell? 5. Descr ...
Monkemeier - Madison Public Schools
... Endomembrane Systems within Eukaryotes! Eukaryotic cells are far more complex than prokaryotic cells. The hallmark of the eukaryotic cell is compartmentalization, which is achieved by an extensive endomembrane system that weaves through the cell interior and by numerous organelles. The organelles of ...
... Endomembrane Systems within Eukaryotes! Eukaryotic cells are far more complex than prokaryotic cells. The hallmark of the eukaryotic cell is compartmentalization, which is achieved by an extensive endomembrane system that weaves through the cell interior and by numerous organelles. The organelles of ...
What the Cell? - Effingham County Schools
... form a cell can use (ATP) during the process of cellular respiration. • Contain own ‘Mitochondrial DNA’ ...
... form a cell can use (ATP) during the process of cellular respiration. • Contain own ‘Mitochondrial DNA’ ...
Microtubules and the shape of plant cells
... John Innes Centre, NORWICH NR4 7UH, UK Microtubules provide the tracks that membrane-bound cellulose synthases follow as they are propelled along the membrane by the extrusion of microfibrils. Ultimately, it is the direction in which these microfibrils are aligned that determines the direction in wh ...
... John Innes Centre, NORWICH NR4 7UH, UK Microtubules provide the tracks that membrane-bound cellulose synthases follow as they are propelled along the membrane by the extrusion of microfibrils. Ultimately, it is the direction in which these microfibrils are aligned that determines the direction in wh ...
SBI 3C- The Cell: Part Two -use this note as a guide to fill in board
... vacuoles are only found in plant cells Structure: -a large membrane-bound sac filled with a watery solution -watery solution contains dissolved sugars, minerals, proteins Function: A.The vacuole serves as a storage area, and may contain stored proteins, ions, waste, or other cell products. B. Vacuol ...
... vacuoles are only found in plant cells Structure: -a large membrane-bound sac filled with a watery solution -watery solution contains dissolved sugars, minerals, proteins Function: A.The vacuole serves as a storage area, and may contain stored proteins, ions, waste, or other cell products. B. Vacuol ...
Cell function notes
... Found in the center of plant/animal cells Function is to contain genetic material Controls cell’s activity ...
... Found in the center of plant/animal cells Function is to contain genetic material Controls cell’s activity ...
Cell death and authophagy in plant life
... Department of Plant Biology & Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences & Linnean Center for Plant Biology, Uppsala / Sweden ...
... Department of Plant Biology & Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences & Linnean Center for Plant Biology, Uppsala / Sweden ...
Plant Cell - Effingham County Schools
... •Leucoplasts store starch and other molecules for the cell. Many in potato cells. Process - Storage ...
... •Leucoplasts store starch and other molecules for the cell. Many in potato cells. Process - Storage ...
Cell Structures Quick Check
... m. cell membrane cell’s outer barrier that regulates the exchange of materials into & out of the cell n. endoplasmic reticulum network of passageways that materials travel through in the cell 2. Glucose Pathway. Trace the pathway that glucose takes as it enters a cell & gets to its destination of ...
... m. cell membrane cell’s outer barrier that regulates the exchange of materials into & out of the cell n. endoplasmic reticulum network of passageways that materials travel through in the cell 2. Glucose Pathway. Trace the pathway that glucose takes as it enters a cell & gets to its destination of ...
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)↑ ↑ ↑ ↑ ↑ ↑