Diffusion
... -the cell _________ due to water ________ c. In a hypotonic solution…………. -the cell ________ due to water ________ ...
... -the cell _________ due to water ________ c. In a hypotonic solution…………. -the cell ________ due to water ________ ...
TEST REVIEW: Microscope, Cell, Viruses, Bacteria and
... concentration of solute as another solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic. Hypertonic Solutions: contain a high concentration of solute rela ...
... concentration of solute as another solution (e.g. the cell's cytoplasm). When a cell is placed in an isotonic solution, the water diffuses into and out of the cell at the same rate. The fluid that surrounds the body cells is isotonic. Hypertonic Solutions: contain a high concentration of solute rela ...
File
... Plant Cell Wall is feeling good today! Coleman FINALLY watered! Large Central Vacuole is turgid – plenty of water all around! November 2, 2010 Wall ...
... Plant Cell Wall is feeling good today! Coleman FINALLY watered! Large Central Vacuole is turgid – plenty of water all around! November 2, 2010 Wall ...
Types of Transport Notes
... • Bacteria and plants have cell walls that prevent them from over-expanding. In plants the pressure exerted on the cell wall is called turgor pressure. • A protist like paramecium has contractile vacuoles that collect water flowing in and pump it out to prevent them from over-expanding. • Salt water ...
... • Bacteria and plants have cell walls that prevent them from over-expanding. In plants the pressure exerted on the cell wall is called turgor pressure. • A protist like paramecium has contractile vacuoles that collect water flowing in and pump it out to prevent them from over-expanding. • Salt water ...
The Incredible Edible Cell
... and red blood cells exhibit structural features that are different from the animal and plant cells modeled in this activity. For example, nerve cells have dendrites and axons while red blood cells lack a nucleus or mitochondria. The human body is made up of over 100 different types of cells. ...
... and red blood cells exhibit structural features that are different from the animal and plant cells modeled in this activity. For example, nerve cells have dendrites and axons while red blood cells lack a nucleus or mitochondria. The human body is made up of over 100 different types of cells. ...
Notes Unit 2 Part 3 POWERPOINT
... • Substances are said to be moving ______ gradients concentration _________ • Dynamic equilibrium = when the concentration of particles are ______ equal both cell inside and outside of the ____ energy • Diffusion requires no _______ ...
... • Substances are said to be moving ______ gradients concentration _________ • Dynamic equilibrium = when the concentration of particles are ______ equal both cell inside and outside of the ____ energy • Diffusion requires no _______ ...
Section 17 Organelle Genetics
... • A number of inherited diseases in humans are due to mitochonrial mutations. • Homoplasmic mutant cells (with only mutant mito genomes) are unable to do aerobic respiration, so they die. • Heteroplasmic cells survive, but have reduced respiration -> defects in tissues requiring hi level of respirat ...
... • A number of inherited diseases in humans are due to mitochonrial mutations. • Homoplasmic mutant cells (with only mutant mito genomes) are unable to do aerobic respiration, so they die. • Heteroplasmic cells survive, but have reduced respiration -> defects in tissues requiring hi level of respirat ...
Chp 2 Cell structure
... have Mature plant cell has a large reticulum and ribosomes. vacuole or if have, vacuoles are central vacuole. usually small and numerous. Differences: Animal cell has centrioles. Plant cell does not have centrioles. Animal cell stores carbohydrate in Plant cell stores carbohydrate in the form of gly ...
... have Mature plant cell has a large reticulum and ribosomes. vacuole or if have, vacuoles are central vacuole. usually small and numerous. Differences: Animal cell has centrioles. Plant cell does not have centrioles. Animal cell stores carbohydrate in Plant cell stores carbohydrate in the form of gly ...
Using cameras in a 3D scene
... respiration. They are the power centers of the cell and have different shapes depending on the cell type. b. Mitochondria are double membrane-bound organelles. The outer membrane is fairly smooth, unlike the inner membrane, which is highly convoluted forming folds called cristae. The cristae increas ...
... respiration. They are the power centers of the cell and have different shapes depending on the cell type. b. Mitochondria are double membrane-bound organelles. The outer membrane is fairly smooth, unlike the inner membrane, which is highly convoluted forming folds called cristae. The cristae increas ...
Section 17 Genome Structure - The University of Arizona
... A numb er of inherited diseases in humans are due to mitochonrial mut ations. Homoplasmic mutant cells (with only mutant mito genomes) are unable to do aerobic respiration, so they die. Heteroplasmic cells survive, but have reduced respiration -> defects in tissues requi ring hi level of respiration ...
... A numb er of inherited diseases in humans are due to mitochonrial mut ations. Homoplasmic mutant cells (with only mutant mito genomes) are unable to do aerobic respiration, so they die. Heteroplasmic cells survive, but have reduced respiration -> defects in tissues requi ring hi level of respiration ...
Homework
... 6. Define the following: isotonic solution, homeostasis, hypotonic solution, hypertonic solution. ...
... 6. Define the following: isotonic solution, homeostasis, hypotonic solution, hypertonic solution. ...
2nd Semester Biology Final Study Guide
... 5. Carbon is cycled throughout the atmosphere through what 3 processes? 6. Distinguish between a food web and food chain. 7. Draw and label the water cycle 8. Define biotic and abiotic factors 9. List and briefly describe the following biomes: a. Tundra b. Desert c. Tropical Rainforest d. Temperate ...
... 5. Carbon is cycled throughout the atmosphere through what 3 processes? 6. Distinguish between a food web and food chain. 7. Draw and label the water cycle 8. Define biotic and abiotic factors 9. List and briefly describe the following biomes: a. Tundra b. Desert c. Tropical Rainforest d. Temperate ...
S-B-4-2_Reading Comprehension Assignment and KEY Reading
... Mitosis is a highly regulated process that is quite complex. The events of mitosis are divided into four phases which are, in order, prophase, metaphase, anaphase, and telophase. During mitosis, the pairs of chromosomes condense and attach to fibers. The sister chromatids are pulled to opposite pole ...
... Mitosis is a highly regulated process that is quite complex. The events of mitosis are divided into four phases which are, in order, prophase, metaphase, anaphase, and telophase. During mitosis, the pairs of chromosomes condense and attach to fibers. The sister chromatids are pulled to opposite pole ...
Ch2.Cells.Lecture
... • Facilitated diffusion = movement of molecules down their concentration gradient through an integral protein • Active transport = integral proteins move molecules across the plasma membrane against their concentration gradient (often using energy in the form of ATP) ...
... • Facilitated diffusion = movement of molecules down their concentration gradient through an integral protein • Active transport = integral proteins move molecules across the plasma membrane against their concentration gradient (often using energy in the form of ATP) ...
The Plant Cell wall
... growth-specific enzymes that hydrolyze the bonds holding the cellulose microfibrils to xyloglucan. The cleavage of these bonds results in the loosening of the cell wall. Causes uptake of water – which leads to a passive increase in cell size. ...
... growth-specific enzymes that hydrolyze the bonds holding the cellulose microfibrils to xyloglucan. The cleavage of these bonds results in the loosening of the cell wall. Causes uptake of water – which leads to a passive increase in cell size. ...
Biology II – Chapter 4 Key Terms
... 1. active transport – the movement of materials across a membrane through the use of cellular energy, normally against a concentration gradient 2. carrier protein – a membrane protein that facilitates the diffusion of specific substances across the membrane 3. cell wall – a layer of material, normal ...
... 1. active transport – the movement of materials across a membrane through the use of cellular energy, normally against a concentration gradient 2. carrier protein – a membrane protein that facilitates the diffusion of specific substances across the membrane 3. cell wall – a layer of material, normal ...
The plant cell wall in growth and development
... growth-specific enzymes that hydrolyze the bonds holding the cellulose microfibrils to xyloglucan. The cleavage of these bonds results in the loosening of the cell wall and Causes uptake of water – which leads to a passive increase in cell size. ...
... growth-specific enzymes that hydrolyze the bonds holding the cellulose microfibrils to xyloglucan. The cleavage of these bonds results in the loosening of the cell wall and Causes uptake of water – which leads to a passive increase in cell size. ...
Ch. 4 Powerpoint Notes - Fulton County Schools
... •Bacteria and plants have cell walls that prevent them from over-expanding. In plants the pressure exerted on the cell wall is called tugor pressure. •A protist like paramecium has contractile vacuoles that collect water flowing in and pump it out to prevent them from over-expanding. •Salt water fis ...
... •Bacteria and plants have cell walls that prevent them from over-expanding. In plants the pressure exerted on the cell wall is called tugor pressure. •A protist like paramecium has contractile vacuoles that collect water flowing in and pump it out to prevent them from over-expanding. •Salt water fis ...
Ch 7.3 notes big
... 2. Because the cell is filled with salts, sugars, proteins, and other molecules, it will almost always be hypertonic to fresh water. 3. If so, the osmotic pressure should produce a net movement of water into the cell. As a result, the volume of the cell will increase until the cell becomes swollen o ...
... 2. Because the cell is filled with salts, sugars, proteins, and other molecules, it will almost always be hypertonic to fresh water. 3. If so, the osmotic pressure should produce a net movement of water into the cell. As a result, the volume of the cell will increase until the cell becomes swollen o ...
Diffusion (Passive Transport)
... diffuse across membranes _______________ requiring the cell to use additional ____________________. The movement of materials across the cell membrane _____________ using cellular ______________ is called ________________ transport. Facilitated Diffusion (Passive Transport) Cell membranes have _____ ...
... diffuse across membranes _______________ requiring the cell to use additional ____________________. The movement of materials across the cell membrane _____________ using cellular ______________ is called ________________ transport. Facilitated Diffusion (Passive Transport) Cell membranes have _____ ...
lec 005v2 tour of cell - faculty.piercecollege.edu
... in dynein shape that lead to bending of cilia and flagella. B. Dynein (dI-nE-un): Responsible for the bending movements of the organelle – ATP provides the energy. ...
... in dynein shape that lead to bending of cilia and flagella. B. Dynein (dI-nE-un): Responsible for the bending movements of the organelle – ATP provides the energy. ...
2.02, 2.03, and 2.05 Notes FINAL
... 3. Label the following organelles: cell wall and chloroplasts. Figure 3: Drawing of the Elodea cell in high power (40x)(blue) Label the cell wall and chloroplasts. 1. Why is the chloroplast green? What pigment does it have? ___________________________________________________ 2. What structure is the ...
... 3. Label the following organelles: cell wall and chloroplasts. Figure 3: Drawing of the Elodea cell in high power (40x)(blue) Label the cell wall and chloroplasts. 1. Why is the chloroplast green? What pigment does it have? ___________________________________________________ 2. What structure is the ...
Osmosis, Diffusion, Active Transport
... Have more water outside the cell so water moves into the cell Causes an increase in pressure inside the cell: called turgor pressure (plants) or osmotic pressure (animals). Increase in pressure in animal cells causes them to swell or even burst; gives plant cells shape and support. ...
... Have more water outside the cell so water moves into the cell Causes an increase in pressure inside the cell: called turgor pressure (plants) or osmotic pressure (animals). Increase in pressure in animal cells causes them to swell or even burst; gives plant cells shape and support. ...
Summative End of Unit Assessment (2003)
... For students with disabilities The general idea of the exam will be the same. They will be tested a variety of ways, however, certain questions will be modified and there will be less open ended questions for them to answer. Those that are marked with an asterisk will be replaced with the matching q ...
... For students with disabilities The general idea of the exam will be the same. They will be tested a variety of ways, however, certain questions will be modified and there will be less open ended questions for them to answer. Those that are marked with an asterisk will be replaced with the matching q ...
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)↑ ↑ ↑ ↑ ↑ ↑