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... a. It breaks down sugar to produce energy. b. It makes proteins. c. It breaks down toxic materials. d.It stores material used to make ribosomes. 13. The site of cellular respiration is the ______________________. 14. Energy produced in mitochondria is stored in a substance called _______________. CH ...
... a. It breaks down sugar to produce energy. b. It makes proteins. c. It breaks down toxic materials. d.It stores material used to make ribosomes. 13. The site of cellular respiration is the ______________________. 14. Energy produced in mitochondria is stored in a substance called _______________. CH ...
Cells and Membranes
... a labeled diagram of and then describe the fluid mosaic model for plasma membranes by answering the following questions. What makes the membrane fluid? What parts constitute the mosaic? What forces hold the phospholipid molecules together? See the student CD, chapter 8, activities, 8A for a great re ...
... a labeled diagram of and then describe the fluid mosaic model for plasma membranes by answering the following questions. What makes the membrane fluid? What parts constitute the mosaic? What forces hold the phospholipid molecules together? See the student CD, chapter 8, activities, 8A for a great re ...
Microscopes allow us to see inside the cell
... membrane where most of the cell work is done. • EUKARYOTIC cells have a nucleus containing its genetic material. (most multicellular) • PROKARYOTIC cells have its genetic material float throughout the cytoplasm with no nucleus. (most unicellular are prokaryotes) • ORGANELLES are any part of a cell e ...
... membrane where most of the cell work is done. • EUKARYOTIC cells have a nucleus containing its genetic material. (most multicellular) • PROKARYOTIC cells have its genetic material float throughout the cytoplasm with no nucleus. (most unicellular are prokaryotes) • ORGANELLES are any part of a cell e ...
Name pd _____ date 4.3 – 4.4 Organelles Questions Cell
... 33. Is the cytoskeleton surrounded by a membrane? 34. What is cytoplasmic streaming? 35. In addition to cytoplasmic streaming, what are the other functions of the cytoskeleton? 36. The cytoskeleton is comprised of three types of protein strands. What are they? 37. For each statement below, write the ...
... 33. Is the cytoskeleton surrounded by a membrane? 34. What is cytoplasmic streaming? 35. In addition to cytoplasmic streaming, what are the other functions of the cytoskeleton? 36. The cytoskeleton is comprised of three types of protein strands. What are they? 37. For each statement below, write the ...
organellesNed2013 35.5 KB
... cells being destroyed. Errors in apoptosis can easily lead to cancers. E: central vacuole: fluid-filled, can store enzymes and wastes. Very large in plant cells. E: contractile vacuole: (another type of vacuole). As in Paramecia, can excrete water; appears as a star-shaped pump. E: vesicles: membran ...
... cells being destroyed. Errors in apoptosis can easily lead to cancers. E: central vacuole: fluid-filled, can store enzymes and wastes. Very large in plant cells. E: contractile vacuole: (another type of vacuole). As in Paramecia, can excrete water; appears as a star-shaped pump. E: vesicles: membran ...
The secrets of plant cell structure
... How come plants can make their own food but animals can’t? It’s all down to the green, pigmentpacked chloroplasts that help plants to turn carbon dioxide and water into glucose. Modern-day chloroplasts were, according to endosymbiotic theory, once independent cells called cyanobacteria, which were i ...
... How come plants can make their own food but animals can’t? It’s all down to the green, pigmentpacked chloroplasts that help plants to turn carbon dioxide and water into glucose. Modern-day chloroplasts were, according to endosymbiotic theory, once independent cells called cyanobacteria, which were i ...
Endosymbiotic Theory
... 2. It is proposed that a larger cell “engulfed “ these smaller prokaryotic cells 3. The larger cell was able to make its own food through photosynthesis and break down food (produce energy) by cellular respiration ...
... 2. It is proposed that a larger cell “engulfed “ these smaller prokaryotic cells 3. The larger cell was able to make its own food through photosynthesis and break down food (produce energy) by cellular respiration ...
Comparing Plant and Animal Cells Lab
... 1. How many layers thick does the onion epidermis appear to be? (use your fine adjustment knob for looking for the layers) _____________________________ 2. What is the general shape of a typical cell? ______________________________ 3. Label the following structures in the drawings above: nucleus, cy ...
... 1. How many layers thick does the onion epidermis appear to be? (use your fine adjustment knob for looking for the layers) _____________________________ 2. What is the general shape of a typical cell? ______________________________ 3. Label the following structures in the drawings above: nucleus, cy ...
Vacuoles
... Found in both plant and animal cells. A good example can be seen in most plant cells. ...
... Found in both plant and animal cells. A good example can be seen in most plant cells. ...
Review Sheet: A Tour of the Cell
... Define cell theory Explain why there are upper and lower limits to cell size Distinguish between the structures of prokaryotic and eukaryotic cells. Explain why compartmentalization is important in eukaryotic cells. Compare the structures of plant and animal cells. Note the function of each cell org ...
... Define cell theory Explain why there are upper and lower limits to cell size Distinguish between the structures of prokaryotic and eukaryotic cells. Explain why compartmentalization is important in eukaryotic cells. Compare the structures of plant and animal cells. Note the function of each cell org ...
Chapter 4 (Part A) : Eukaryotic Cells
... Parts -1. Cell walls: animal cells don’t have them; plants, fungi, some protists do ...
... Parts -1. Cell walls: animal cells don’t have them; plants, fungi, some protists do ...
Exercise and Sport Science (BOIL121) Lecture notes
... - phospholipid bilayer; embedded proteins - protein, cholesterol, glycoproteins function; - protects cells from surroundings (outside environment) - selectively allows ions and organic molecules to pass through - controls movement of substances in and out - base of attachment for cytoskeleton ...
... - phospholipid bilayer; embedded proteins - protein, cholesterol, glycoproteins function; - protects cells from surroundings (outside environment) - selectively allows ions and organic molecules to pass through - controls movement of substances in and out - base of attachment for cytoskeleton ...
Introduction to Biotechnology
... protists (protozoa & algae). Have a true nucleus with DNA DNA is enclosed in a membrane-bound nucleus membrane-enclosed cell organelles ...
... protists (protozoa & algae). Have a true nucleus with DNA DNA is enclosed in a membrane-bound nucleus membrane-enclosed cell organelles ...
TEACHER NOTES AND ANSWERS Section 5.1
... 14. mitosis 15. interphase Cells divide at different rates Rates of cell division vary widely and are linked to the body’s need. The length of gap 1 varies most widely among cell types. Some cells, such as neurons, enter a stage called G0, where cells are unlikely to divide again. Cell size is limit ...
... 14. mitosis 15. interphase Cells divide at different rates Rates of cell division vary widely and are linked to the body’s need. The length of gap 1 varies most widely among cell types. Some cells, such as neurons, enter a stage called G0, where cells are unlikely to divide again. Cell size is limit ...
File - Mrs. LeCompte
... Forms centrosomes and centrioles o Centriole = Pair of cylindrical structures located in the centrosome of in animal cells o Cilia and flagella = Locomotor organelles Cilia ...
... Forms centrosomes and centrioles o Centriole = Pair of cylindrical structures located in the centrosome of in animal cells o Cilia and flagella = Locomotor organelles Cilia ...
Functions of Cell Structures
... Functions of Cell Structures page. Contains chlorophyll that changes sunlight into food Collects and stores food, water, and waste Produces the cells energy – “power plant” Directs materials inside the cell where to go Stiff wall that protects the cell membrane ...
... Functions of Cell Structures page. Contains chlorophyll that changes sunlight into food Collects and stores food, water, and waste Produces the cells energy – “power plant” Directs materials inside the cell where to go Stiff wall that protects the cell membrane ...
Cellular Parts - Bibb County Schools
... • Vacuoles – Spherical storage sac for food and water • Cell membrane – membrane surrounding the cell that allows some molecules to pass through • Golgi bodies- flattened membrane sacs for synthesis, packaging and distribution • Mitochondria- rod-shaped double membranous structures where cellular re ...
... • Vacuoles – Spherical storage sac for food and water • Cell membrane – membrane surrounding the cell that allows some molecules to pass through • Golgi bodies- flattened membrane sacs for synthesis, packaging and distribution • Mitochondria- rod-shaped double membranous structures where cellular re ...
Name - Marissa Elementary School
... b. He observed microscopic boxes separated by walls in a thin piece of cork 4. Define the following parts of a cell: a. Nucleus: ...
... b. He observed microscopic boxes separated by walls in a thin piece of cork 4. Define the following parts of a cell: a. Nucleus: ...
Cell Content Statement 1 Study Guide
... Know the Parts of the Modern Cell Theory All known living things are made up of cells. The cell is the basic unit of all living things. All cells come from pre-existing cells. Cells contain hereditary information which is passed from cell to cell during cell division. All cells are made of the same ...
... Know the Parts of the Modern Cell Theory All known living things are made up of cells. The cell is the basic unit of all living things. All cells come from pre-existing cells. Cells contain hereditary information which is passed from cell to cell during cell division. All cells are made of the same ...
Homework 4
... 1b. What does semi-permeable mean and how are the molecules arranged in a membrane to make it semi-permeable? ...
... 1b. What does semi-permeable mean and how are the molecules arranged in a membrane to make it semi-permeable? ...
Study guide
... 10. Describe the flow of membrane within cells, being sure to name the particular structures and the order in which the membrane flows. 11. Be able to name groups of organisms that do, and do not, have cell walls. 12. What is the cytoskeleton? Be able to name the key functions of the cytoskeleton. 1 ...
... 10. Describe the flow of membrane within cells, being sure to name the particular structures and the order in which the membrane flows. 11. Be able to name groups of organisms that do, and do not, have cell walls. 12. What is the cytoskeleton? Be able to name the key functions of the cytoskeleton. 1 ...
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)↑ ↑ ↑ ↑ ↑ ↑