Lesson 1 - d.loft STEM Learning
... • Small analogous picture cards labeled with the part of the cell they represent Cell in the City | Nano-Activities for Kids: Biology - The Center … • Step-by-step “How to Draw a Cell” tutorial (Also available on YouTube!) http://www.how-to- ...
... • Small analogous picture cards labeled with the part of the cell they represent Cell in the City | Nano-Activities for Kids: Biology - The Center … • Step-by-step “How to Draw a Cell” tutorial (Also available on YouTube!) http://www.how-to- ...
Biology of the Cell
... way for the cell to expand—lengthwise, along the axis. Question Three. Now we’re getting somewhere. How are the newly made cellulose microfibrils laid down so that they are oriented correctly, perpendicular to the axis of elongation? It works like this. The complicated enzymic machine that makes the ...
... way for the cell to expand—lengthwise, along the axis. Question Three. Now we’re getting somewhere. How are the newly made cellulose microfibrils laid down so that they are oriented correctly, perpendicular to the axis of elongation? It works like this. The complicated enzymic machine that makes the ...
Unit 5: Cells and Body Systems
... from the cell. Smooth ER does NOT have ribosomes on its surface. It makes proteins and lipids that will be exported by the cell. It also controls the Calcium level in muscles and detoxifies poisons, alcohol, and drugs. Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that ...
... from the cell. Smooth ER does NOT have ribosomes on its surface. It makes proteins and lipids that will be exported by the cell. It also controls the Calcium level in muscles and detoxifies poisons, alcohol, and drugs. Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that ...
Cellular Transport
... •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 ...
Cell Organelle Research Worksheet
... Groups lipids and proteins and packages them in vesicles (packets). Then ships its packages to different organelles Packaging Plant ...
... Groups lipids and proteins and packages them in vesicles (packets). Then ships its packages to different organelles Packaging Plant ...
4 A/P Biology Summer Packet Plant and Animal Cell Cytoskeleton
... 1.) help give the cell shape 2.) help give the cell elasticity 3.) help cell divide (or perform “fission” as in the case of bacteria) 4.) help organize internal structures/inclusions within cell 5.) help conduct signals from the outside of the cell to the inside of the cell 6.) help move materials ( ...
... 1.) help give the cell shape 2.) help give the cell elasticity 3.) help cell divide (or perform “fission” as in the case of bacteria) 4.) help organize internal structures/inclusions within cell 5.) help conduct signals from the outside of the cell to the inside of the cell 6.) help move materials ( ...
Sample Textbook
... Organelles are the individual functional units of all cells. Because any given cell has complicated functions that must be performed, the different functions of the cell are divided and spread out among the various structures inside the cell. For example, the protein-making organelle is called a rib ...
... Organelles are the individual functional units of all cells. Because any given cell has complicated functions that must be performed, the different functions of the cell are divided and spread out among the various structures inside the cell. For example, the protein-making organelle is called a rib ...
Chapter 4 Notes
... Cells have many organelles, internal structures that carry out specific functions, that help maintain homeostasis ...
... Cells have many organelles, internal structures that carry out specific functions, that help maintain homeostasis ...
Microscopy and Cell Structure
... and outside the cell Inflow of water exerts osmotic pressure on membrane Membrane rupture is prevented by rigid cell wall of bacteria ...
... and outside the cell Inflow of water exerts osmotic pressure on membrane Membrane rupture is prevented by rigid cell wall of bacteria ...
Plant vs. Animal Cell Compariset
... Distinguishing features between plant and animal cells is an important skill in understanding how cells function in different organisms. A key difference between plant and animal cells is the shape of the cell. The animal cells supplied in the compariset generally have a round shape and are bound by ...
... Distinguishing features between plant and animal cells is an important skill in understanding how cells function in different organisms. A key difference between plant and animal cells is the shape of the cell. The animal cells supplied in the compariset generally have a round shape and are bound by ...
cell structure and function
... • The relative concentration of chemicals (concentration gradients) inside and outside the cell and of the corresponding electrical charges, or voltage (electrical gradients), create an overall electrochemical gradient across the membrane. • A cytoplasmic membrane uses the energy inherent in its ele ...
... • The relative concentration of chemicals (concentration gradients) inside and outside the cell and of the corresponding electrical charges, or voltage (electrical gradients), create an overall electrochemical gradient across the membrane. • A cytoplasmic membrane uses the energy inherent in its ele ...
5.1-5.9 Study Guide
... ○ Passive Transport - the diffusion of molecules across a cell’s membrane does not take energy, therefore it is spontaneous or “passive” ● 5.4 - Osmosis is the diffusion of water across a membrane ○ Osmosis - diffusion of water across a membrane ○ If the membrane is permeable to water but not to a ...
... ○ Passive Transport - the diffusion of molecules across a cell’s membrane does not take energy, therefore it is spontaneous or “passive” ● 5.4 - Osmosis is the diffusion of water across a membrane ○ Osmosis - diffusion of water across a membrane ○ If the membrane is permeable to water but not to a ...
5.1 The Cell Cycle
... Which of the following limits the maximum size of a cell? • a. the stage of the cell cycle • b. the ratio of cell surface area to volume • c. the number of mitochondria in the cell • d. the size of the organism ...
... Which of the following limits the maximum size of a cell? • a. the stage of the cell cycle • b. the ratio of cell surface area to volume • c. the number of mitochondria in the cell • d. the size of the organism ...
Passive Transport - Highland Local Schools
... Once equilibrium is reached, particles still move around consistently, however we do not see the movement ...
... Once equilibrium is reached, particles still move around consistently, however we do not see the movement ...
THE CELL THEORY A. All living organisms are made up of one or
... • In the end, 38 molecules of ATP are formed for every molecule of sugar that is used up in respiration. ...
... • In the end, 38 molecules of ATP are formed for every molecule of sugar that is used up in respiration. ...
Cell Transport PowerPoint
... http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching. ...
... http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching. ...
Cells - Lyndhurst Schools
... Rudolf Virchow concluded that all cells came from pre-existing cells ...
... Rudolf Virchow concluded that all cells came from pre-existing cells ...
Cell Structure and Function The Cell Cell Shape and Movement
... Cells come in many shapes and sizes. The size and shape of a cell is part of the function of the cell. Some cells, such as human red-blood cells, can be seen only by using a microscope. The cells can pass easily through small blood vessels because of their small size. Their disk shapes are important ...
... Cells come in many shapes and sizes. The size and shape of a cell is part of the function of the cell. Some cells, such as human red-blood cells, can be seen only by using a microscope. The cells can pass easily through small blood vessels because of their small size. Their disk shapes are important ...
MITOSIS
... kinetochore movement along the spindle microtubules and through the physical interaction of polar microtubules. ...
... kinetochore movement along the spindle microtubules and through the physical interaction of polar microtubules. ...
CP Bio Review
... MULTIPLE CHOICE: Circle the answer(s) that best completes the sentence. The substance that dissolves to make a solution is called the ___________________ A. diffuser B. solvent C. solute D. concentrate During diffusion molecules tend to move _____________________ A. up the concentration gradient B. ...
... MULTIPLE CHOICE: Circle the answer(s) that best completes the sentence. The substance that dissolves to make a solution is called the ___________________ A. diffuser B. solvent C. solute D. concentrate During diffusion molecules tend to move _____________________ A. up the concentration gradient B. ...
protists and fungi
... Other Protozoans • Called sporozoans - parasites • Feed on cells & body fluids of hosts Sporozoans like Plasmodium (causes malaria) have more than 1 host: mosquitoes and then humans ...
... Other Protozoans • Called sporozoans - parasites • Feed on cells & body fluids of hosts Sporozoans like Plasmodium (causes malaria) have more than 1 host: mosquitoes and then humans ...
Study Guide B
... 13. A ________________ is a molecule that acts as a signal when it binds to a receptor. 14. A ligand that can cross the cell membrane can bind to an ________________ receptor. 15. A ligand that cannot cross the cell membrane can send a message to a cell by binding to a _____________ receptor, which ...
... 13. A ________________ is a molecule that acts as a signal when it binds to a receptor. 14. A ligand that can cross the cell membrane can bind to an ________________ receptor. 15. A ligand that cannot cross the cell membrane can send a message to a cell by binding to a _____________ receptor, which ...
Biology 1060 Chapter 6 - College of Southern Maryland
... Compare and contrast prokaryotic and eukaryotic cells Discuss the importance of surface area-tovolume ratio and its implications for cell size and functions Give examples of cells with various surface area-to-volume ratios ...
... Compare and contrast prokaryotic and eukaryotic cells Discuss the importance of surface area-tovolume ratio and its implications for cell size and functions Give examples of cells with various surface area-to-volume ratios ...
Active Transport, Endocytosis, and Exocytosis
... The key feature of active transport proteins is that they can use chemical energy to move a substance against its concentration gradient. Most use energy from a molecule called ATP, either directly or indirectly. For example, nerve cells, or neurons, need to have a higher concentration of potassi ...
... The key feature of active transport proteins is that they can use chemical energy to move a substance against its concentration gradient. Most use energy from a molecule called ATP, either directly or indirectly. For example, nerve cells, or neurons, need to have a higher concentration of potassi ...
cytoskeleton
... provide movement within a cell. The way cytoskeleton is distributed throughout the cell, a “scaffold” type structure forms to anchor certain enzymes and macromolecules within the cytoplasm. Having cytoskeleton is crucial to a cell because although it is just a small part of its Anatomy, without it, ...
... provide movement within a cell. The way cytoskeleton is distributed throughout the cell, a “scaffold” type structure forms to anchor certain enzymes and macromolecules within the cytoplasm. Having cytoskeleton is crucial to a cell because although it is just a small part of its Anatomy, without it, ...
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)↑ ↑ ↑ ↑ ↑ ↑