Cellular Reproduction (Mitosis)
... • Cyclins are cell cycle regulators • They bind to Cdk to activate enzymes involved in DNA replication • When a mutation causes Cdk to be activated before it should be, it can push the cell cycle past a checkpoint • Cdk is a protooncogene • Once Cdk is altered to increase rate of cell cycle it becom ...
... • Cyclins are cell cycle regulators • They bind to Cdk to activate enzymes involved in DNA replication • When a mutation causes Cdk to be activated before it should be, it can push the cell cycle past a checkpoint • Cdk is a protooncogene • Once Cdk is altered to increase rate of cell cycle it becom ...
Starter – answer the following questions - sentences
... Explain why they are arranged in this way. Draw a diagram of the arrangement of these tubes in the leaves of plants. (p134) Explain why they are arranged in this way. Draw a diagram of the arrangement of these vessels in the root of the plant. (p131) Give a reason for this arrangement. ...
... Explain why they are arranged in this way. Draw a diagram of the arrangement of these tubes in the leaves of plants. (p134) Explain why they are arranged in this way. Draw a diagram of the arrangement of these vessels in the root of the plant. (p131) Give a reason for this arrangement. ...
Cell Parts Notes - davis.k12.ut.us
... used to digest extra nutrients, old organelles or malfunctioning organelles. The following cell parts are found only in a plant cell. n. Cell wall: is made of cellulose and provides a plant cell with structure and support. During cell division a cell plate forms which becomes the cell wall. o. Chlor ...
... used to digest extra nutrients, old organelles or malfunctioning organelles. The following cell parts are found only in a plant cell. n. Cell wall: is made of cellulose and provides a plant cell with structure and support. During cell division a cell plate forms which becomes the cell wall. o. Chlor ...
Section 17 Organelle Genetics
... • Very few genes remain from the symbiont ancestors. Compare and contrast to nuclear genes (orders of magnitude): ...
... • Very few genes remain from the symbiont ancestors. Compare and contrast to nuclear genes (orders of magnitude): ...
Text - Tufts University
... Intracellular membranes compartmentalize the cell and increase the surface areas where important metabolic processes take place. Depending on the organelles, the functions of the intracellular membranes vary greatly. Some of the membrane associated proteins in the intracellular membrane function as ...
... Intracellular membranes compartmentalize the cell and increase the surface areas where important metabolic processes take place. Depending on the organelles, the functions of the intracellular membranes vary greatly. Some of the membrane associated proteins in the intracellular membrane function as ...
The Four Stages of Mitosis
... Sister chromatids are attached to each other at the centromere The centrosomes move away from each other, apparently propelled by the lengthening microtubules between them The nuclear envelope breaks down and microtubules of the spindle fiber can now invade the nuclear area and interact with the chr ...
... Sister chromatids are attached to each other at the centromere The centrosomes move away from each other, apparently propelled by the lengthening microtubules between them The nuclear envelope breaks down and microtubules of the spindle fiber can now invade the nuclear area and interact with the chr ...
PCDU Seminar Myriam Murillo 11 November 2015
... Binding of heterotetrameric adaptor protein 2 (AP-2) complex/clathrin to the PM. ...
... Binding of heterotetrameric adaptor protein 2 (AP-2) complex/clathrin to the PM. ...
Plasma Membrane Notes (7.2)
... the cell and its environment Allows ____________ ____________ the cell Allows ____________ to ____________ the cell ...
... the cell and its environment Allows ____________ ____________ the cell Allows ____________ to ____________ the cell ...
General properties of fungi
... All fungi have typical eukaryotic morphology. They have rigid cell wall composed of chitin, which may be layered with maltose, glucose and other polysaccharides in association with polypeptides. Some lower fungi possess cellulose in their cell wall. Some fungi such as Cryptococcus and yeast form of ...
... All fungi have typical eukaryotic morphology. They have rigid cell wall composed of chitin, which may be layered with maltose, glucose and other polysaccharides in association with polypeptides. Some lower fungi possess cellulose in their cell wall. Some fungi such as Cryptococcus and yeast form of ...
SAM Teachers Guide Lipids and Carbohydrates - RI
... evolution was the emergence of lipids. These lipids are thought to have become more complicated. Then, the lipids formed membranes that created an interior space, separating it from an outside environment. 5. Table sugar and wood are both made of glucose. Why can you serve cubes of sugar with tea, b ...
... evolution was the emergence of lipids. These lipids are thought to have become more complicated. Then, the lipids formed membranes that created an interior space, separating it from an outside environment. 5. Table sugar and wood are both made of glucose. Why can you serve cubes of sugar with tea, b ...
Cells: Prokaryote vs Eukaryote
... • Using a technique called the Gram stain – Scientists can classify many bacterial species into two groups based on cell wall composition, Gram-positive and Gram-negative ...
... • Using a technique called the Gram stain – Scientists can classify many bacterial species into two groups based on cell wall composition, Gram-positive and Gram-negative ...
Surface innovation
... and the activation of internal signalling pathways (classified as outside-in interactions). In contrast, inside-out intracellular signal transductions allow the cell to remodel its external microenvironment and to upregulate or change the structure of cell surface receptors. This remodelling is ofte ...
... and the activation of internal signalling pathways (classified as outside-in interactions). In contrast, inside-out intracellular signal transductions allow the cell to remodel its external microenvironment and to upregulate or change the structure of cell surface receptors. This remodelling is ofte ...
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Problem Set "Simcell 2010-2011" id:[22067] A) What do the
... First, using a microworld, you will explore the science concepts under study. Then you will make a hypothesis and test it. Then you will examine your data and use it to back up your conclusions. Multiple choice: ...
... First, using a microworld, you will explore the science concepts under study. Then you will make a hypothesis and test it. Then you will examine your data and use it to back up your conclusions. Multiple choice: ...
IB Topic 2 - Blended Biology
... -provides rigid support for the cells -made mostly of cellulose -plays important role in turgor (hardening of cells by the intake of water) -prevents cells from taking in too much water ...
... -provides rigid support for the cells -made mostly of cellulose -plays important role in turgor (hardening of cells by the intake of water) -prevents cells from taking in too much water ...
CK12 Passive Transport - Diffusion, Osmosis, and Facilitated Diffusion
... Diffusion can occur across a semipermeable membrane, or a membrane that allows some things to cross such as water and oxygen but not allow other things to cross such as sugar. In diffusion, molecules that are small and uncharged like water and oxygen can freely diffuse across a cell membrane. They s ...
... Diffusion can occur across a semipermeable membrane, or a membrane that allows some things to cross such as water and oxygen but not allow other things to cross such as sugar. In diffusion, molecules that are small and uncharged like water and oxygen can freely diffuse across a cell membrane. They s ...
Eurakyotic Cell Organelles
... What do cells (their organelles) do? 1. make energy - cells need energy for activities - for growth 2. make proteins - proteins do all the work in cell 3. make more cells - cell growth - cepair damaged or diseased cells ...
... What do cells (their organelles) do? 1. make energy - cells need energy for activities - for growth 2. make proteins - proteins do all the work in cell 3. make more cells - cell growth - cepair damaged or diseased cells ...
COURSE REQUIREMENTS
... The cell’s shape is organized and maintained by the cytoskeleton which anchors organelles in place, helps during endocytosis, the uptake of external materials by a cell and cytokinesis. The eukaryotic cytoskeleton is composed of microfilaments, intermediate filaments and microtubule ...
... The cell’s shape is organized and maintained by the cytoskeleton which anchors organelles in place, helps during endocytosis, the uptake of external materials by a cell and cytokinesis. The eukaryotic cytoskeleton is composed of microfilaments, intermediate filaments and microtubule ...
Cell wall - kelleyscience
... • Pores (holes) are present in the membrane • Contains genetic information in the form of chromosomes (DNA and associated histone proteins) • Uncoiled chromosomes are referred to as chromatin – they stain a dark colour and are concentrated at the edges of the nucleus • mRNA is transcribed in the nuc ...
... • Pores (holes) are present in the membrane • Contains genetic information in the form of chromosomes (DNA and associated histone proteins) • Uncoiled chromosomes are referred to as chromatin – they stain a dark colour and are concentrated at the edges of the nucleus • mRNA is transcribed in the nuc ...
Endocytosis and Exocytosis
... In pinocytosis (literally "cell drinking"), the plasma membrane forms a kind of harbor that pinches off and moves into the cytoplasm as a vesicle. The vesicle carries primarily water and some solutes. ...
... In pinocytosis (literally "cell drinking"), the plasma membrane forms a kind of harbor that pinches off and moves into the cytoplasm as a vesicle. The vesicle carries primarily water and some solutes. ...
Chapter 12. Regulation of the Cell Cycle
... proper regulation of cell cycle is so key to life that the genes for these regulatory proteins have been highly conserved through evolution the genes are basically the same in yeast, insects, plants & animals (including humans) ...
... proper regulation of cell cycle is so key to life that the genes for these regulatory proteins have been highly conserved through evolution the genes are basically the same in yeast, insects, plants & animals (including humans) ...
Buffer systems
... Mechanisms which protect the body against life-threatening changes in hydrogen ion concentration: 1) Buffering Systems in Body Fluids 2) Respiratory Responses 3) Renal Responses 4) Intracellular Shifts of Ions ...
... Mechanisms which protect the body against life-threatening changes in hydrogen ion concentration: 1) Buffering Systems in Body Fluids 2) Respiratory Responses 3) Renal Responses 4) Intracellular Shifts of Ions ...
ALL LIVING THINGS ARE MADE UP OF CELLS
... • If all the plants in the world were destroyed, what do you think would happen to the rest of the living things and why? – Other living things would die. Plants capture energy from the sun to make food. This food also becomes the source of energy for the organisms that eat plants. The meat of those ...
... • If all the plants in the world were destroyed, what do you think would happen to the rest of the living things and why? – Other living things would die. Plants capture energy from the sun to make food. This food also becomes the source of energy for the organisms that eat plants. The meat of those ...
Cytosol
The cytosol or intracellular fluid (ICF) or cytoplasmic matrix is the liquid found inside cells. It is separated into compartments by membranes. For example, the mitochondrial matrix separates the mitochondrion into many compartments.In the eukaryotic cell, the cytosol is within the cell membrane and is part of the cytoplasm, which also comprises the mitochondria, plastids, and other organelles (but not their internal fluids and structures); the cell nucleus is separate. In prokaryotes, most of the chemical reactions of metabolism take place in the cytosol, while a few take place in membranes or in the periplasmic space. In eukaryotes, while many metabolic pathways still occur in the cytosol, others are contained within organelles.The cytosol is a complex mixture of substances dissolved in water. Although water forms the large majority of the cytosol, its structure and properties within cells is not well understood. The concentrations of ions such as sodium and potassium are different in the cytosol than in the extracellular fluid; these differences in ion levels are important in processes such as osmoregulation, cell signaling, and the generation of action potentials in excitable cells such as endocrine, nerve and muscle cells. The cytosol also contains large amounts of macromolecules, which can alter how molecules behave, through macromolecular crowding.Although it was once thought to be a simple solution of molecules, the cytosol has multiple levels of organization. These include concentration gradients of small molecules such as calcium, large complexes of enzymes that act together to carry out metabolic pathways, and protein complexes such as proteasomes and carboxysomes that enclose and separate parts of the cytosol.