The Plant Cell - Gunawardena Lab
... Cytoplasmic streaming is a conspicuous feature of plant cell behavior in which organelles and vesicles shuttle along cyto- ...
... Cytoplasmic streaming is a conspicuous feature of plant cell behavior in which organelles and vesicles shuttle along cyto- ...
bsaa processes in plant cells worksheet
... A. The membrane allows the passage of fluid carrying chemical messages between the cytoplasm and the nucleus. B. Chromosomes are made of chromatin. Chromatin is long strands of DNA tightly coiled around protein. A section of this DNA strand codes for a specific protein to be made. This functional se ...
... A. The membrane allows the passage of fluid carrying chemical messages between the cytoplasm and the nucleus. B. Chromosomes are made of chromatin. Chromatin is long strands of DNA tightly coiled around protein. A section of this DNA strand codes for a specific protein to be made. This functional se ...
Chloroplast Tubules Visualized in Transplastomic Plants Expressing
... required to understand the developmental regulation of chloroplast tubules. In addition, we found that chloroplast tubules were most abundant in trichome cells of tobacco leaves (Fig. 5). Several tubules emanate from single chloroplasts and many of them end at a near cell membrane. They might be inv ...
... required to understand the developmental regulation of chloroplast tubules. In addition, we found that chloroplast tubules were most abundant in trichome cells of tobacco leaves (Fig. 5). Several tubules emanate from single chloroplasts and many of them end at a near cell membrane. They might be inv ...
Cell Membrane Structure and Function
... • Two types of transport proteins can help ions and large polar molecules diffuse through cell membranes: • Channel proteins – provide a narrow channel for the substance to pass ...
... • Two types of transport proteins can help ions and large polar molecules diffuse through cell membranes: • Channel proteins – provide a narrow channel for the substance to pass ...
Big Idea 4: Biological systems interact, and these systems and their
... Essential knowledge 4.A.2: The structure and function of subcellular components, and their interactions, provide essential cellular processes. 2. Chloroplasts contain chlorophylls, which are responsible for the green color of a plant and are the key light-trapping molecules in photosynthesis. There ...
... Essential knowledge 4.A.2: The structure and function of subcellular components, and their interactions, provide essential cellular processes. 2. Chloroplasts contain chlorophylls, which are responsible for the green color of a plant and are the key light-trapping molecules in photosynthesis. There ...
Cells in their social context Cell Junctions
... Tight junctions also provide a variable permeability barrier between cells. The strength of this permeability barrier is cell type dependent. For example, bladder epithelial tight junctions are 104 X less permeable to inorganic ions like Na+ than intestinal epithelia. ...
... Tight junctions also provide a variable permeability barrier between cells. The strength of this permeability barrier is cell type dependent. For example, bladder epithelial tight junctions are 104 X less permeable to inorganic ions like Na+ than intestinal epithelia. ...
view as pdf - KITP Online
... …but few chromatin accessibility changes at most other cell cycle genes ...
... …but few chromatin accessibility changes at most other cell cycle genes ...
The Euglena
... called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod li ...
... called the reservoir. Color the reservoir grey and the flagellum black. The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod li ...
PPT 3 Cell Boundaries
... b. provides rigid support for the surrounding cell. c. allows most small molecules and ions to pass through easily. d. is found only in plants, fungi, algae, and many prokaryotes. Slide 21 of 47 End Show Copyright Pearson Prentice Hall ...
... b. provides rigid support for the surrounding cell. c. allows most small molecules and ions to pass through easily. d. is found only in plants, fungi, algae, and many prokaryotes. Slide 21 of 47 End Show Copyright Pearson Prentice Hall ...
Green genes - DNA in (and out of) chloroplasts
... To synthesise carotene, the enzymes encoded by the three genes had to be imported into plastids. Two of the genes were isolated from daffodils and the enzymes they encoded were imported into rice plastids without the researchers needing to make modifications. However, the third gene was taken from a ...
... To synthesise carotene, the enzymes encoded by the three genes had to be imported into plastids. Two of the genes were isolated from daffodils and the enzymes they encoded were imported into rice plastids without the researchers needing to make modifications. However, the third gene was taken from a ...
•Deposition of unique membrane/cell wall material at rhizoid end
... •Similar to Fucus, although different evolutionary origins ...
... •Similar to Fucus, although different evolutionary origins ...
lncreased Expression of Vacuolar Aquaporin and
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
Evolution
... Compare the origin and subsequent evolution of mitochondria and chloroplasts. Mitochondria are organelles that carry out oxygen-dependent ATP production, while chloroplasts are organelles found within plant and algal cells, carrying out oxygenic photosynthesis. A comparison of the similarities and d ...
... Compare the origin and subsequent evolution of mitochondria and chloroplasts. Mitochondria are organelles that carry out oxygen-dependent ATP production, while chloroplasts are organelles found within plant and algal cells, carrying out oxygenic photosynthesis. A comparison of the similarities and d ...
The Cell Membrane
... This is one of the most important forms of active transport in all organisms. It uses approximately 30% of all the ATP in cells. Explore the workings of the sodium-potassium pump by viewing some animations and tutorials. 1. Why is the sodium-potassium pump necessary? 2. What is the ratio of sodium t ...
... This is one of the most important forms of active transport in all organisms. It uses approximately 30% of all the ATP in cells. Explore the workings of the sodium-potassium pump by viewing some animations and tutorials. 1. Why is the sodium-potassium pump necessary? 2. What is the ratio of sodium t ...
C) Cells and Transport Practice Qs
... c. Glucose and galactose are actively transported, but fructose is moved by facilitated diffusion b. All are moved by active transport d. Fructose is actively transported, but glucose and galactose are moved by facilitated diffusion ____ 11. The following are functions that all cells share except: ...
... c. Glucose and galactose are actively transported, but fructose is moved by facilitated diffusion b. All are moved by active transport d. Fructose is actively transported, but glucose and galactose are moved by facilitated diffusion ____ 11. The following are functions that all cells share except: ...
File - Science is Forever
... that don't fit into the other kingdoms. Some protists are considered plant-like while others are considered animal-like. The animal-like protists are known as protozoans. The amoeba is considered an animal-like protist because it moves and consumes its food. Protists are classified by how they move, ...
... that don't fit into the other kingdoms. Some protists are considered plant-like while others are considered animal-like. The animal-like protists are known as protozoans. The amoeba is considered an animal-like protist because it moves and consumes its food. Protists are classified by how they move, ...
Transport. Active and Passive
... • Get into your groups (no larger than 4) or work independently to complete packet. • When complete, check in with me. • Take a few minutes to organize your notebooks. – There may be a notebook check next week… ...
... • Get into your groups (no larger than 4) or work independently to complete packet. • When complete, check in with me. • Take a few minutes to organize your notebooks. – There may be a notebook check next week… ...
Chapter 7 (Nov 12-13)
... 10. What things are selected for? - Non-polar pass easily - steroids 11. What things are selected against? - large, polar, charged molecules – glucose, amino acids, ions 12. What is the difference between hypertonic & hypotonic solutions? 13. How are substances transported across membranes? - Passiv ...
... 10. What things are selected for? - Non-polar pass easily - steroids 11. What things are selected against? - large, polar, charged molecules – glucose, amino acids, ions 12. What is the difference between hypertonic & hypotonic solutions? 13. How are substances transported across membranes? - Passiv ...
The identification of mature and immature leucocytes in
... morula of Human Monocytic Ehrlichia ! Single Ehrlichia are often seen in the cytoplasm of leukaemia cells inoculated with Ehrlichia, see CDC, Google. Tick bites are very common. New facts are that Ehrlichia species are found in ticks all over the world and that most Ehrlichia infections probably go ...
... morula of Human Monocytic Ehrlichia ! Single Ehrlichia are often seen in the cytoplasm of leukaemia cells inoculated with Ehrlichia, see CDC, Google. Tick bites are very common. New facts are that Ehrlichia species are found in ticks all over the world and that most Ehrlichia infections probably go ...
ExamView - chapter 7 exam review.tst
... 8. The specialized cell shown is a nerve cell, which carries information from one place to another in the form of nerve impulses. Like all specialized cells, its structure is related to its function. ...
... 8. The specialized cell shown is a nerve cell, which carries information from one place to another in the form of nerve impulses. Like all specialized cells, its structure is related to its function. ...
Cells_and_Tissues__Ch_3__S2015_Part_1
... In between cell divisions, chromosomes exist in long fine threads of chromatin When a cell is about to divide, chromosomes coil and condense ...
... In between cell divisions, chromosomes exist in long fine threads of chromatin When a cell is about to divide, chromosomes coil and condense ...
lesson 1: plant cells
... Cytoplasm: This is the jelly-like fluid inside the cell but outside the vacuole. It contains not only water, but proteins, fats, carbohydrates, and minerals. The cytoplasm circulates the chloroplasts around and around, making sure they all get an equal amount of light. ...
... Cytoplasm: This is the jelly-like fluid inside the cell but outside the vacuole. It contains not only water, but proteins, fats, carbohydrates, and minerals. The cytoplasm circulates the chloroplasts around and around, making sure they all get an equal amount of light. ...
lncreased Expression of Vacuolar Aquaporin and H+
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
... permeability of the lipid bilayer is more than sufficient for required fluxes. However, some specialized plant cells, such as stomata cells, the motor cells of the pulvini of Mimosa pudica, or of the stamens of Mahonia spp. change their volume very rapidly using water exchange with surrounding cells ...
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)↑ ↑ ↑ ↑ ↑ ↑