Mitosis Powerpoint - Lemon Bay High School
... are present? • How many chromosomes are present? • How many PAIRS of homologous chromosomes are present? ...
... are present? • How many chromosomes are present? • How many PAIRS of homologous chromosomes are present? ...
General Biology – Chapter 5 Notes on Active Transport Systems
... facilitated diffusion in conjunction with a carrier protein. The difference is that Sodium and potassium move against the concentration gradients so that for every three sodium ions being pump outside the cell, there are two potassium ions being pumped into the cell. Because these ions are being pum ...
... facilitated diffusion in conjunction with a carrier protein. The difference is that Sodium and potassium move against the concentration gradients so that for every three sodium ions being pump outside the cell, there are two potassium ions being pumped into the cell. Because these ions are being pum ...
STUDY GUIDE SECTION 4-1 The History of Cell Biology
... a. rate at which substances needed by the cell can enter the cell through its surface. b. rate at which the cell can manufacture genetic information. c. amount of material the cell can collect to fill itself. d. amount of cell membrane the cell can produce. 2. _____The diameter of most plant and ani ...
... a. rate at which substances needed by the cell can enter the cell through its surface. b. rate at which the cell can manufacture genetic information. c. amount of material the cell can collect to fill itself. d. amount of cell membrane the cell can produce. 2. _____The diameter of most plant and ani ...
plant cell - Fleming County Schools
... They are there to help the cell when it comes time to divide. You will usually find them near the nucleus but they cannot be seen when the cell is not dividing. The centrioles are made of Microtubules. ...
... They are there to help the cell when it comes time to divide. You will usually find them near the nucleus but they cannot be seen when the cell is not dividing. The centrioles are made of Microtubules. ...
GCSE Bitesize Complete Revisoon and Practice Additional Science
... substances in solution. Dissolved substances can move into and out of cells because of diffusion. Gases are exchanged at the surface of the lungs because of diffusion: • oxygen moves from the air into the blood because it is at a higher concentration in the air ...
... substances in solution. Dissolved substances can move into and out of cells because of diffusion. Gases are exchanged at the surface of the lungs because of diffusion: • oxygen moves from the air into the blood because it is at a higher concentration in the air ...
name date ______ period
... B. prokaryotes have a nucleus and eukaryotes don’t C. eukaryotes have DNA and prokaryotes don’t D. eukaryotes have membranes around their nucleus and organelles and prokaryotes don’t Vacuoles are _______________ in plant cells than in animal cells. A. smaller B. larger Cell membranes form because th ...
... B. prokaryotes have a nucleus and eukaryotes don’t C. eukaryotes have DNA and prokaryotes don’t D. eukaryotes have membranes around their nucleus and organelles and prokaryotes don’t Vacuoles are _______________ in plant cells than in animal cells. A. smaller B. larger Cell membranes form because th ...
Handout
... • Monomer availability controls actin filament assembly. • Actin-nucleating factors accelerate polymerization and generate branched or straight filaments. • Actin filament-binding proteins alter filament dynamics. • Severing proteins regulate actin filament depolymerization. • Higher-order acti ...
... • Monomer availability controls actin filament assembly. • Actin-nucleating factors accelerate polymerization and generate branched or straight filaments. • Actin filament-binding proteins alter filament dynamics. • Severing proteins regulate actin filament depolymerization. • Higher-order acti ...
Biol-1406_Ch4.ppt
... “9+2” arrangement formed by centrioles which become membrane-anchored structures called basal bodies • Long pairs of microtubules slide along each other (using ATP) causing movement of cilia and flagella • Cilia are short (10-25 µm) and numerous while flagella are long (50-75 µm) but few in any cell ...
... “9+2” arrangement formed by centrioles which become membrane-anchored structures called basal bodies • Long pairs of microtubules slide along each other (using ATP) causing movement of cilia and flagella • Cilia are short (10-25 µm) and numerous while flagella are long (50-75 µm) but few in any cell ...
Chapter 7: Cell Structure and Function
... __________________________: making a ______________________________ in the cell membrane creating a vacuole. __________________________: changing the _______________ of the cell membrane to ______________________ a food particle. __________________________: surrounding material IN the cell and _____ ...
... __________________________: making a ______________________________ in the cell membrane creating a vacuole. __________________________: changing the _______________ of the cell membrane to ______________________ a food particle. __________________________: surrounding material IN the cell and _____ ...
Cell Transport Powerpoint
... molecules like glucose through the cell membrane – larger molecules must be “helped” Proteins in the cell membrane form channels for large molecules to pass through ...
... molecules like glucose through the cell membrane – larger molecules must be “helped” Proteins in the cell membrane form channels for large molecules to pass through ...
File
... Do you think that eukaryotes could have evolved without prokaryotes? Explain. How have organelles enabled eukaryotic cells to become successful? By comparing a bee's body mass to its wing span, it has been calculated that a bee should not be able to fly. Cell biologists have since found that the m ...
... Do you think that eukaryotes could have evolved without prokaryotes? Explain. How have organelles enabled eukaryotic cells to become successful? By comparing a bee's body mass to its wing span, it has been calculated that a bee should not be able to fly. Cell biologists have since found that the m ...
File
... 1. Define aerobic and anaerobic 2. How is the replication of the mitochondria and chloroplast evidence for the endosymbiotic theory? 3. Explain 5 similarities between mitochondria & chloroplasts and bacterial cells 4. Describe the benefits to both an aerobic cell and an anaerobic cell that may have ...
... 1. Define aerobic and anaerobic 2. How is the replication of the mitochondria and chloroplast evidence for the endosymbiotic theory? 3. Explain 5 similarities between mitochondria & chloroplasts and bacterial cells 4. Describe the benefits to both an aerobic cell and an anaerobic cell that may have ...
incredible_cell_project
... Here are the guidelines: 1. Your project must include your name. 2. The cell type identified based on shape and color so that others can easily tell if it is a plant or animal cell. 3. The model a 3-D representation of a plant or animal cell. ll organelles listed must be included and look like t ...
... Here are the guidelines: 1. Your project must include your name. 2. The cell type identified based on shape and color so that others can easily tell if it is a plant or animal cell. 3. The model a 3-D representation of a plant or animal cell. ll organelles listed must be included and look like t ...
KEY | Cell Review Worksheet | Chapter 3
... The movement of molecules from an area of high concentration to low concentration – down the concentration gradient, No energy is required for this to take place. 18. Fill in the table: Types of Passive Transport Explanation ...
... The movement of molecules from an area of high concentration to low concentration – down the concentration gradient, No energy is required for this to take place. 18. Fill in the table: Types of Passive Transport Explanation ...
Cell Organelles and Functions
... • Gel like substance inside cell where organelles are housed. • Where most cellular activities occur • Many biomolecules necessary for the cell processes are dissolved there. • Used as transport medium for ribosomes and other organelles ...
... • Gel like substance inside cell where organelles are housed. • Where most cellular activities occur • Many biomolecules necessary for the cell processes are dissolved there. • Used as transport medium for ribosomes and other organelles ...
Biology_Goal_4a_Review
... 19. ________________Rigid structure in plant cells; provides support 20. ________________Aids in cell reproduction; found only in animal cells 21. ________________Form of DNA not during cell division 22. ________________Site of intercellular digestion of molecules and cell waste ...
... 19. ________________Rigid structure in plant cells; provides support 20. ________________Aids in cell reproduction; found only in animal cells 21. ________________Form of DNA not during cell division 22. ________________Site of intercellular digestion of molecules and cell waste ...
Thibodeau: Anatomy and Physiology, 5/e Chapter 3: Anatomy of
... Thibodeau: Anatomy and Physiology, 5/e Chapter 3: Anatomy of Cells Simply stated, cell theory asserts that the cell is the fundamental organizational unit of life. Common cell structures and their functions are examined in this chapter. The approach is general, and the model of the "composite cell" ...
... Thibodeau: Anatomy and Physiology, 5/e Chapter 3: Anatomy of Cells Simply stated, cell theory asserts that the cell is the fundamental organizational unit of life. Common cell structures and their functions are examined in this chapter. The approach is general, and the model of the "composite cell" ...
CELL MEMBRANE - wlhs.wlwv.k12.or.us
... -small particles of RNA & protein -follow coded instructions from DNA -made in the nucleolus -cells especially active in protein synthesis often contain large #s of ribosomes -may be free (in cytoplasm) or attached to the ER ...
... -small particles of RNA & protein -follow coded instructions from DNA -made in the nucleolus -cells especially active in protein synthesis often contain large #s of ribosomes -may be free (in cytoplasm) or attached to the ER ...
September 24 AP Biology - John D. O`Bryant School of Math & Science
... 6. Which of the following organelles modifies and packages for secretion the materials produced by the ribosomes? ...
... 6. Which of the following organelles modifies and packages for secretion the materials produced by the ribosomes? ...
The Parts of a Cell
... (Lysosomes clean just like Lysol!) Think of the janitors who clean up any waste in the school at the end of the day ...
... (Lysosomes clean just like Lysol!) Think of the janitors who clean up any waste in the school at the end of the day ...
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)↑ ↑ ↑ ↑ ↑ ↑