Biology – II Honors Welcome to Cells! Chapter 4
... 4. Support, movement, communication a. Cytoskeleton – non-membranous, protein tubules, microfilaments b. Plasma membrane – bilayer of phospholipids c. Cell wall – found in plants, fungi, and some protists Plant cell walls are different in that they contain cellulose, a polysaccharide. D. Reasons for ...
... 4. Support, movement, communication a. Cytoskeleton – non-membranous, protein tubules, microfilaments b. Plasma membrane – bilayer of phospholipids c. Cell wall – found in plants, fungi, and some protists Plant cell walls are different in that they contain cellulose, a polysaccharide. D. Reasons for ...
week9
... 5A Describe the stages of the cell cycle and its importance to the growth of organisms. 5D Recognize that disruptions of the cell cycle can lead to diseases such as cancer. ...
... 5A Describe the stages of the cell cycle and its importance to the growth of organisms. 5D Recognize that disruptions of the cell cycle can lead to diseases such as cancer. ...
cell_analogy_collage_HONORS_2014
... _____ It must explain the reasoning behind the correlation. (e.g., “the nucleus is like a brain because it controls and coordinates the activities of the whole cell in the same way the brain controls and coordinates activities of the body.”) _____ It must explain both the cell “job” and the comparis ...
... _____ It must explain the reasoning behind the correlation. (e.g., “the nucleus is like a brain because it controls and coordinates the activities of the whole cell in the same way the brain controls and coordinates activities of the body.”) _____ It must explain both the cell “job” and the comparis ...
Structure, function and growth of prokaryote and eukaryote cells
... Vacuole (plants = large; animals = small or absent) ...
... Vacuole (plants = large; animals = small or absent) ...
active transport
... Passive transport is the movement of solutes and molecules across the cell membrane WITHOUT the use of energy (ATP – adenosine triAlso includes phosphate) by the molecule facilitated diffusion of larger molecules through a protein channel ...
... Passive transport is the movement of solutes and molecules across the cell membrane WITHOUT the use of energy (ATP – adenosine triAlso includes phosphate) by the molecule facilitated diffusion of larger molecules through a protein channel ...
Cells - singhscience
... have the desired characteristics. Organisms that are difficult or slow to breed normally can be reproduced quickly. If a clone is susceptible to disease or changes in environment, then all the clones will be susceptible. It will lead to less variation, and less opportunity to create new varieties in ...
... have the desired characteristics. Organisms that are difficult or slow to breed normally can be reproduced quickly. If a clone is susceptible to disease or changes in environment, then all the clones will be susceptible. It will lead to less variation, and less opportunity to create new varieties in ...
Text Size: Question Spacing: Answer Layout: 7th Grade Science
... A) We have nothing in common. C) We have the exact same cell parts. B) We have similar cell structure. D) We both need salt water to survive. 29) The __________ and __________ systems work together to support the body and enable it to move. A) skeletal and muscular C) lymphatic and skeletal B) muscu ...
... A) We have nothing in common. C) We have the exact same cell parts. B) We have similar cell structure. D) We both need salt water to survive. 29) The __________ and __________ systems work together to support the body and enable it to move. A) skeletal and muscular C) lymphatic and skeletal B) muscu ...
Vocabulario y resumen de la sección
... passive transport: the movement of substances across a cell membrane without the use of energy by the cell active transport: the movement of substances across the cell membrane that requires the cell to use energy endocytosis: the process by which a cell membrane surrounds a particle and encloses th ...
... passive transport: the movement of substances across a cell membrane without the use of energy by the cell active transport: the movement of substances across the cell membrane that requires the cell to use energy endocytosis: the process by which a cell membrane surrounds a particle and encloses th ...
NYS Diffusion through a Membrane Review Worksheet
... 1. Glucose and starch indicator may pass through the membrane. Starch may not. This is because starch is a much larger molecule than glucose or starch indicator. 2. This shows the importance of breaking down large molecules inside the digestive system in order for nutrients to enter the bloodstream. ...
... 1. Glucose and starch indicator may pass through the membrane. Starch may not. This is because starch is a much larger molecule than glucose or starch indicator. 2. This shows the importance of breaking down large molecules inside the digestive system in order for nutrients to enter the bloodstream. ...
tissues and organs
... made of a double layer of lipids. A lipid is a fat-like molecule that does not dissolve in water. The cell membrane is designed to allow different substances to move through it. One process for moving substances across the cell membrane is called diffusion. Diffusion depends on the concentration of ...
... made of a double layer of lipids. A lipid is a fat-like molecule that does not dissolve in water. The cell membrane is designed to allow different substances to move through it. One process for moving substances across the cell membrane is called diffusion. Diffusion depends on the concentration of ...
![Cell Physiology [PPT]](http://s1.studyres.com/store/data/000836372_1-f01c4ac0aa1884121950a80d4cb7cd49-300x300.png)
Cell Physiology [PPT]
... vacuole- membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells. Vacuoles are essentially enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution , though in certain cases ...
... vacuole- membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells. Vacuoles are essentially enclosed compartments which are filled with water containing inorganic and organic molecules including enzymes in solution , though in certain cases ...
Cell Organelle Activity
... 1. Fine object(s) that are in proportion to the cell organelle, given the total size of the cell as specified by your teacher. You must include a written hand-in showing the mathematical calculations for your object 2. Find an object that you feel is an analogy to your cell organelle OR create a mod ...
... 1. Fine object(s) that are in proportion to the cell organelle, given the total size of the cell as specified by your teacher. You must include a written hand-in showing the mathematical calculations for your object 2. Find an object that you feel is an analogy to your cell organelle OR create a mod ...
Plant Cells Test
... 14. Which of the following is NOT a function of the cytoskeleton? a. helps the cell maintain its shape b. helps the cell move c. prevents chromosomes from separating d. helps organelles within the cell move 15. The main function of the cell wall is to a. support and protect the cell. c. direct the a ...
... 14. Which of the following is NOT a function of the cytoskeleton? a. helps the cell maintain its shape b. helps the cell move c. prevents chromosomes from separating d. helps organelles within the cell move 15. The main function of the cell wall is to a. support and protect the cell. c. direct the a ...
cells and organelles - Westgate Mennonite Collegiate
... phospholipids and embedded proteins. Color and label the cell membrane tan. Plant cells have an additional layer surrounding them called the cell wall. The cell wall is made of nonliving material called cellulose. Color and label the cell wall brown. The centrosome (also called the "microtubule orga ...
... phospholipids and embedded proteins. Color and label the cell membrane tan. Plant cells have an additional layer surrounding them called the cell wall. The cell wall is made of nonliving material called cellulose. Color and label the cell wall brown. The centrosome (also called the "microtubule orga ...
Notes for Organelles and Function
... If a cell needs a lot of energy…it will have more mitochondria ...
... If a cell needs a lot of energy…it will have more mitochondria ...
Facilitated Diffusion and Active Transport PPT
... movement of larger molecules like glucose through the cell membrane larger molecules must be “helped” Examples: Glucose or amino acids moving from blood into a cell. ...
... movement of larger molecules like glucose through the cell membrane larger molecules must be “helped” Examples: Glucose or amino acids moving from blood into a cell. ...
Looking Inside Cells
... Chloroplasts – (are ONLY in plant cells!) capture energy from sunlight and use it to produce food for the cell – chloroplasts make leaves green! Vacuoles – are used as storage areas of cells. They store food and other materials needed by the cell, and even waste products, too – most plant cells have ...
... Chloroplasts – (are ONLY in plant cells!) capture energy from sunlight and use it to produce food for the cell – chloroplasts make leaves green! Vacuoles – are used as storage areas of cells. They store food and other materials needed by the cell, and even waste products, too – most plant cells have ...
composition of eukaryote cells
... of very small rods and cylinders called microfiaments and microtubules. Together, they form the cytoskeleton. This provides support and shape, and also assists in transporting substances through the cell. They can also move the entire cell, as in phagocytosis. The movement of cytoplasm from one part ...
... of very small rods and cylinders called microfiaments and microtubules. Together, they form the cytoskeleton. This provides support and shape, and also assists in transporting substances through the cell. They can also move the entire cell, as in phagocytosis. The movement of cytoplasm from one part ...
Active Transport
... • Pinocytosis is a process that is happening all of the time. • The liquid is enclosed in “vesicles”, formed by invagination of the plasma membrane. These vesicles then move into the cell. ...
... • Pinocytosis is a process that is happening all of the time. • The liquid is enclosed in “vesicles”, formed by invagination of the plasma membrane. These vesicles then move into the cell. ...
Ch 4 Cells
... Tay-Sachs disease is caused by the absence or significantly reduced level of a enzyme called beta-hexosaminidase (Hex-A). Normally, Hex A is a digestive enzyme that is part of the lysosome. Without the correct amount of the Hex-A enzyme, a fatty substance or lipid called GM2 ganglioside accumulates ...
... Tay-Sachs disease is caused by the absence or significantly reduced level of a enzyme called beta-hexosaminidase (Hex-A). Normally, Hex A is a digestive enzyme that is part of the lysosome. Without the correct amount of the Hex-A enzyme, a fatty substance or lipid called GM2 ganglioside accumulates ...
IMMS 1 Revision
... ● Trans Golgi Network - proteolysis of peptides into active forms, sorting of molecules into vesicles Vesicles - spherical membrane bound organelles to transport and store material ● Cell surface derived: pinocytotic and phagocytic vesicles ● Golgi-derived transport vesicles ...
... ● Trans Golgi Network - proteolysis of peptides into active forms, sorting of molecules into vesicles Vesicles - spherical membrane bound organelles to transport and store material ● Cell surface derived: pinocytotic and phagocytic vesicles ● Golgi-derived transport vesicles ...
2.-6 Lipid Bilayer of the Cell Membrane
... shape • Glucose moves across cell membrane (but only down the concentration gradient) • Kinase enzyme reduces glucose concentration inside the cell by transforming glucose into glucose-6-phosphate • Transporter proteins always bring glucose into cell ...
... shape • Glucose moves across cell membrane (but only down the concentration gradient) • Kinase enzyme reduces glucose concentration inside the cell by transforming glucose into glucose-6-phosphate • Transporter proteins always bring glucose into cell ...
Structure and Function of Cell complete
... • Cells take in food and get rid of waste through their cell membrane. • If cells grew larger they would need more food and produce more waste. ...
... • Cells take in food and get rid of waste through their cell membrane. • If cells grew larger they would need more food and produce more waste. ...
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)↑ ↑ ↑ ↑ ↑ ↑