Diffusion Quiz Answers
... 6. During diffusion, which way to molecules move? a) Molecules flow down the concentration gradient. b) Molecules flow against the concentration gradient. c) From an area of low concentration to an area of high concentration. d) none of the above ...
... 6. During diffusion, which way to molecules move? a) Molecules flow down the concentration gradient. b) Molecules flow against the concentration gradient. c) From an area of low concentration to an area of high concentration. d) none of the above ...
Organism of the Day: Cheetah
... and kept them as pets. Cheetahs can reach speeds of 70 to 75 mph, making it the fastest land animal. Cheetahs can accelerate from 0 to 63 mph in 3 seconds! Very low genetic variability among cheetahs. This is thought to be due to a bottleneck during the last ice age. 1. How do large lungs ena ...
... and kept them as pets. Cheetahs can reach speeds of 70 to 75 mph, making it the fastest land animal. Cheetahs can accelerate from 0 to 63 mph in 3 seconds! Very low genetic variability among cheetahs. This is thought to be due to a bottleneck during the last ice age. 1. How do large lungs ena ...
BIOL260 Chap 4 Review
... structure and Gram staining (this is very important to understand). 11. Describe the critical implications of the structure of the Gram negative cell wall. 12. Describe why drugs which target the cell wall of bacteria generally have no effect (or minimal) effects on Eukaryotic cells. Give an example ...
... structure and Gram staining (this is very important to understand). 11. Describe the critical implications of the structure of the Gram negative cell wall. 12. Describe why drugs which target the cell wall of bacteria generally have no effect (or minimal) effects on Eukaryotic cells. Give an example ...
The Cell - Internet Activity
... explore more about cells, please consider checking out the following information: Size things down at How big? Cell City WebQuest Learn about the genius of Robert Hooke ...
... explore more about cells, please consider checking out the following information: Size things down at How big? Cell City WebQuest Learn about the genius of Robert Hooke ...
Cell Organelle Summarizer Match the organelles below to their
... Name ____________________ Date ______ Period ___ ...
... Name ____________________ Date ______ Period ___ ...
5 kingdoms
... * some make their own food (autotrophic); others can't make their own food (heterotrophic) ...
... * some make their own food (autotrophic); others can't make their own food (heterotrophic) ...
Cell Organelle Crossword Puzzle
... Material inside the cell membrane- not including the nucleus ...
... Material inside the cell membrane- not including the nucleus ...
Cell Organelle Riddles
... Since I contain many enzymes I can digest an injured cell And can break down a large molecule (like a protein) into a smaller one as well ...
... Since I contain many enzymes I can digest an injured cell And can break down a large molecule (like a protein) into a smaller one as well ...
Cellular Structures Animal Cell Guess the organelle! Mitochondrion
... Division of Labor example... • Proteins pass from one sac to another in vesicles formed from the Golgi complex (“mail must be sorted when it comes into the post office”) • Many membranes present in cells are interchangeable…they can be recycled from one part of the cell to another (same basic struc ...
... Division of Labor example... • Proteins pass from one sac to another in vesicles formed from the Golgi complex (“mail must be sorted when it comes into the post office”) • Many membranes present in cells are interchangeable…they can be recycled from one part of the cell to another (same basic struc ...
Cell Powerpoint used in class
... • Most common is chloroplast – Transform solar energy into chemical energy— photosynthesis – Contain chlorophyll—green pigment – Thylakoid-- flat membranous sac where photosynthesis occurs ...
... • Most common is chloroplast – Transform solar energy into chemical energy— photosynthesis – Contain chlorophyll—green pigment – Thylakoid-- flat membranous sac where photosynthesis occurs ...
Cell story book project
... Cell Story Book Project due January 14, 2010 Imagine that you work for the Shaps Book Company. Your editor wants you to develop a children’s book about cells and their parts. The book should be something that a 2nd-4th grader would be able to understand. The editor gives you a list of the book requi ...
... Cell Story Book Project due January 14, 2010 Imagine that you work for the Shaps Book Company. Your editor wants you to develop a children’s book about cells and their parts. The book should be something that a 2nd-4th grader would be able to understand. The editor gives you a list of the book requi ...
Biology 3B-1 - secondary
... 2. Compare and contrast optimal point, optimal range, range of tolerance, and limit of tolerance Optimal point- the point where organisms function ...
... 2. Compare and contrast optimal point, optimal range, range of tolerance, and limit of tolerance Optimal point- the point where organisms function ...
THE Cell Story - aclassyspaceatmas
... She got out and found a big room and was so curious so she went in and saw the nucleus The room was dark but she was able to draw out the figure it was round. ...
... She got out and found a big room and was so curious so she went in and saw the nucleus The room was dark but she was able to draw out the figure it was round. ...
Cellopolis WS
... structure that could have been included in the picture that would represent the functions of each of these parts. a. Pili - __________________________________________________________________ b. Cell membrane - ________________________________________________________ c. Contractile vacuole - ________ ...
... structure that could have been included in the picture that would represent the functions of each of these parts. a. Pili - __________________________________________________________________ b. Cell membrane - ________________________________________________________ c. Contractile vacuole - ________ ...
Major Cell Organelles.wpd
... ! small structures made up of protein and RNA (ribonucleic acid) ! can be free within the cytoplasm but typically are found on ER to make it the rough ER ...
... ! small structures made up of protein and RNA (ribonucleic acid) ! can be free within the cytoplasm but typically are found on ER to make it the rough ER ...
Eukaryotic Cell Substructure
... 8. The green color of leaves is due to the presence of the _______ pigment. 9. The network of convoluted tubules is called the _______. 10. Secretory granules are formed by the _______ of the animal cell. 11. _______ are known as the 'sites of protein synthesis in the cell'. 12. Cell organelle that ...
... 8. The green color of leaves is due to the presence of the _______ pigment. 9. The network of convoluted tubules is called the _______. 10. Secretory granules are formed by the _______ of the animal cell. 11. _______ are known as the 'sites of protein synthesis in the cell'. 12. Cell organelle that ...
Document
... ___ 19.Chloroplasts are organelles that are found in the cells of a. animals. c. mitochondria. b. plants and algae. d. all eukaryotic cells. ___ 20.Which process happens inside a chloroplast? a. production of ATP c. photosynthesis b. production of DNA d. formation of animal cells ___ 21.Chloroplasts ...
... ___ 19.Chloroplasts are organelles that are found in the cells of a. animals. c. mitochondria. b. plants and algae. d. all eukaryotic cells. ___ 20.Which process happens inside a chloroplast? a. production of ATP c. photosynthesis b. production of DNA d. formation of animal cells ___ 21.Chloroplasts ...
Cell Organelle Table
... Machines that makes proteins according to the directions of the DNA – not bound by membrane Modify and sorts proteins from RER, Loads them into vesicles and sends them to destinations Transport proteins (enzymes), lipids (steroids) and carbohydrates to specific locations Single membrane bound struct ...
... Machines that makes proteins according to the directions of the DNA – not bound by membrane Modify and sorts proteins from RER, Loads them into vesicles and sends them to destinations Transport proteins (enzymes), lipids (steroids) and carbohydrates to specific locations Single membrane bound struct ...
Compare and contrast plant and animal cells
... Vacuoles store food and water. They also provide turgor pressure against the cell walls; may additionally store waste material before its transported outside the cell. ...
... Vacuoles store food and water. They also provide turgor pressure against the cell walls; may additionally store waste material before its transported outside the cell. ...
Chapter 4
... Early researchers proposed the sliding-filament model based on work with living cells in vivo 1983, Michael Sheetz and James Spudich devised an approach to study myosin in vitro Nitella cells were used as a source of actin filaments Myosin was purified and attached to a fluorescently labeled bead Co ...
... Early researchers proposed the sliding-filament model based on work with living cells in vivo 1983, Michael Sheetz and James Spudich devised an approach to study myosin in vitro Nitella cells were used as a source of actin filaments Myosin was purified and attached to a fluorescently labeled bead Co ...
A1 Cell Structure Notes
... Chloroplasts are plant cell organelles that are responsible for making food using sunlight, h2o and co2. Similarly to mitochondria they can replicate themselves. ...
... Chloroplasts are plant cell organelles that are responsible for making food using sunlight, h2o and co2. Similarly to mitochondria they can replicate themselves. ...
3.1 - Investigating Structure of Cells
... also have a supporting structure called a CELL WALL. • The cell wall is made of cellulose which allows the cell wall to be flexible as well as strong. • The function of a cell wall is to support the plant cell and stop it from bursting. ...
... also have a supporting structure called a CELL WALL. • The cell wall is made of cellulose which allows the cell wall to be flexible as well as strong. • The function of a cell wall is to support the plant cell and stop it from bursting. ...
Prokaryotic and Eukaryotic Cells
... • A flexible membrane that sits below the cell wall • Selectively permeable • Important in “talking” with other cells Plasma Membrane (Green) ...
... • A flexible membrane that sits below the cell wall • Selectively permeable • Important in “talking” with other cells Plasma Membrane (Green) ...
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)↑ ↑ ↑ ↑ ↑ ↑