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Vocabulary Assignment Unit 03
Vocabulary Assignment Unit 03

... b. Mass transport that specifically brings liquid into the cell c. Control center of the cell; contains the DNA d. Term used to describe the cell membrane because of its two layers of lipids e. Groups of organs that work together in the body f. Cell transport that goes from high concentration to low ...
Document
Document

... What is “Cell Theory”? ...
Cell Parts
Cell Parts

... • Anton Van Leeuwenhoek  developed the first light microscope; observed microorganisms in pond water • Mathias Schleidan  stated that plants are made up of cells • Theodor Schwann  stated that animals are made up of cells • Rudolph Virchow  all cells come from other cells (life comes from life) ...
Chapter 1 • Lesson 1 Cell Structure Objectives: 1,1.1,1.1.2 Key
Chapter 1 • Lesson 1 Cell Structure Objectives: 1,1.1,1.1.2 Key

... chlorophyll captures the energy from sunlight. Some protists, including algae, also have chloroplasts. Some bacteria carry out photosynthesis, but they do not have chloroplasts. In these bacteria, chlorophyll is scattered through the cytoplasm. Animals and fungi do not have chloroplasts or carry out ...
L2_Tour of the Cell_Fa08
L2_Tour of the Cell_Fa08

... Complex of proteins & rRNA Function: Protein synthesis • Ribosome parts are made in nucleus by nucleolus • Parts travel out of nucleus, into cytoplasm Two types: • Bound ribosome – Bound to endoplasmic reticulum (ER) – Make proteins for membranes or exportation from cell ...
General Biology Chapter 4 Cellular Transport
General Biology Chapter 4 Cellular Transport

... area of HIGH concentration to an area of LOW concentration. (Molecules down the concentration gradient) – Osmosis = is the diffusion of WATER molecules from an area of HIGH concentration to an area of LOW concentration (water down the concentration gradient) – Facilitated Diffusion = Uses CARRIER PR ...
cell membrane
cell membrane

... Cell walls and chloroplasts are found in plant cells only. • The cell wall is a stiff covering outside the cell membrane of a plant cell. • Chloroplast is a green structure in a plant cell where food is produced. It is green because it contains the green pigment ...
Cell Membrane and Transport
Cell Membrane and Transport

... Facilitated diffusion: small, polar molecules (glucose, amino acids), or ions move through protein channels embedded in the membrane. Osmosis: water molecules move through the membrane. ...
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1

... 2. What is the function of a transport protein? Concept Check 6.3 1. What is diffusion? 2. What role does a cellular membrane play in passive transport? 3. Distinguish between hypertonic, hypotonic, and isotonic solutions, and give an example of how each affects the cell. 4. What role does active tr ...
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1

... 2. What is the function of a transport protein? Concept Check 6.3 1. What is diffusion? 2. What role does a cellular membrane play in passive transport? 3. Distinguish between hypertonic, hypotonic, and isotonic solutions, and give an example of how each affects the cell. 4. What role does active tr ...
• Replication: reproduction • Function: catalytic functions • RNA
• Replication: reproduction • Function: catalytic functions • RNA

... and products that are no longer made. Part of your job would entail sorting through everything, finding the correct blueprints, copying them, and sending the copies out to the assembly line at the correct time. ...
MEMBRANE STRUCTURE AND FUNCTION
MEMBRANE STRUCTURE AND FUNCTION

... Big Idea 2: Energy - Biological systems utilize free energy and molecular building blocks to grow, to reproduce and to maintain dynamic homeostasis. Big Idea 4: Interactions - Biological systems interact, and these systems and their interactions possess complex properties. ...
Chapter 7
Chapter 7

... across the cell membrane and into the cell Materials are absorbed into the small intestine of a human through the villi, small fingerlike projections on the inside tube of the intestine. ...
(1)The vesicular nucleus
(1)The vesicular nucleus

... Protozoa ---is an unicellular eukaryote animals with whole physiological functions ...
Document
Document

... 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 ...
Peripheral
Peripheral

... through the membrane Proteins bind and drag the molecules through the lipid bilayer and releases the molecules on the opposite side ...
Paloma Maldonado Valerie Hart Dena Hazelwood
Paloma Maldonado Valerie Hart Dena Hazelwood

... If the nucleus didn't exist, the cell wouldn't have direction and the nucleolus, which is inside the nucleus, wouldn't be able to produce ribosomes.  If the ribosomes weren't present or weren't working correctly, proteins wouldn't be made.  If proteins aren't produced then there is nothing that is h ...
Cells functions
Cells functions

... 100s to 1000s of individual mitochondria number of mitochondria is correlated with aerobic metabolic activity  more activity = more energy ...
Cells functions - Rahway Public Schools
Cells functions - Rahway Public Schools

... 100s to 1000s of individual mitochondria number of mitochondria is correlated with aerobic metabolic activity  more activity = more energy ...
File
File

... – They are as unique as fingerprints. – They play an important role in organ transplants. If the marker proteins on a transplanted organ are different from those of the original organ the body will reject it as a foreign invader. ...
PPT File
PPT File

... • Organelles do the work of cells – each structure has a job to do • keeps the cell alive; keeps you alive ...
Cell Membranes
Cell Membranes

... inside that may be different from the outside  If the concentrations are different between the inside of the cell and the outside, particles and molecules will move until they are equal inside and out ...
Plants, Animals, and other Weird Cells
Plants, Animals, and other Weird Cells

... 1. Obtain a slide, cover slip. Clean both the slide and the cover slip. 2. Drop one small drop of water on the slide. 3. Using a clean toothpick, gently scrape the toothpick inside your mouth along the cheek wall. 4. Smear the toothpick across the slide where the water drop is. 5. Add one drop of me ...
Discovery Research and Cell Culture
Discovery Research and Cell Culture

... an acid environment. If there is plenty of oxygen, glucose is broken down into pyruvic acid which enters the mitochondria producing H20, CO2, and energy (ATP and heat). • Analyate analysis - Glucose concentration measurements using an analyate analyzer such as a Biolyzer or a Nova, allows us to dete ...
The Prokaryotic Cell Wall
The Prokaryotic Cell Wall

... – Requires energy as ATP (adenosine triphosphate) ...
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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)↑ ↑ ↑ ↑ ↑ ↑
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