Cell Parts (cont.)
... shape and suspends the organelles (little organs). All the chemical reactions take place here! It’s a boppin’ busy place! ...
... shape and suspends the organelles (little organs). All the chemical reactions take place here! It’s a boppin’ busy place! ...
Ch04_lecturestudents2nd
... 4.5 What Roles Do Membranes Play In Eukaryotic Cells? The Golgi apparatus sorts, chemically alters, and packages important molecules. • This organelle looks like a stack of flattened sacs. • Its membranes are derived from the ER. • Vesicles containing preformed molecules from the ER are transferr ...
... 4.5 What Roles Do Membranes Play In Eukaryotic Cells? The Golgi apparatus sorts, chemically alters, and packages important molecules. • This organelle looks like a stack of flattened sacs. • Its membranes are derived from the ER. • Vesicles containing preformed molecules from the ER are transferr ...
electrochemical impulse
... generated by the movement of ions through the membrane. • When the nerve is excited, the potential charge difference across the membrane changes to +40 mV. This is called the action potential. • When excitation of the nerve occurs, the membrane becomes more permeable to sodium ions. It is believed t ...
... generated by the movement of ions through the membrane. • When the nerve is excited, the potential charge difference across the membrane changes to +40 mV. This is called the action potential. • When excitation of the nerve occurs, the membrane becomes more permeable to sodium ions. It is believed t ...
Page 1
... Describe the signalling pathway stimulated by TGF-β (transforming growth factor beta), and explain how it can be feedback-regulated. Use text only, not figures. ...
... Describe the signalling pathway stimulated by TGF-β (transforming growth factor beta), and explain how it can be feedback-regulated. Use text only, not figures. ...
poster v1
... boundary layer between the fluids is altered, exposing cells anchored in the channel to varying extracellular environments. ...
... boundary layer between the fluids is altered, exposing cells anchored in the channel to varying extracellular environments. ...
The Need for Cell Division
... Think about how hir chemical messages travel in a large cell, compared with a small ctll. Before the nucleus can tell the organdIes in the cytoplasm what to do, it must lirst receive messages from the cell’s surroundings. The bigger the cell is, the longer it takes for messages to reach the nucleus, ...
... Think about how hir chemical messages travel in a large cell, compared with a small ctll. Before the nucleus can tell the organdIes in the cytoplasm what to do, it must lirst receive messages from the cell’s surroundings. The bigger the cell is, the longer it takes for messages to reach the nucleus, ...
Cell Membrane
... If the outside environment of a cell is water-based, and the inside of the cell is also mostly water, something has to make sure the cell stays intact in this environment. What would happen if a cell dissolved in water, like sugar does? Obviously, the cell could not survive in such an environment. S ...
... If the outside environment of a cell is water-based, and the inside of the cell is also mostly water, something has to make sure the cell stays intact in this environment. What would happen if a cell dissolved in water, like sugar does? Obviously, the cell could not survive in such an environment. S ...
Document
... The theory suggests that some organelles found inside eukaryotes were once free-living prokaryotes. ...
... The theory suggests that some organelles found inside eukaryotes were once free-living prokaryotes. ...
Cell Division
... 3. G1, S, and G2 combine to make up I __ __ __ __ __ __ __ __ __ , the non-dividing phase of the cell cycle. 4. DNA is copied during the S __ __ __ __ __ __ __ __ or S phase of interphase. 5. P __ __ __ __ __ __ __ is the first phase of mitosis during which C __ __ __ __ __ __ __ __ scrunches into c ...
... 3. G1, S, and G2 combine to make up I __ __ __ __ __ __ __ __ __ , the non-dividing phase of the cell cycle. 4. DNA is copied during the S __ __ __ __ __ __ __ __ or S phase of interphase. 5. P __ __ __ __ __ __ __ is the first phase of mitosis during which C __ __ __ __ __ __ __ __ scrunches into c ...
Biology 393 Midterm Review
... pancreas (secretes several digestive enzymes into the small intestine), and the liver (secretes bile, a greenish fluid that breaks down fats). The function of the digestive system breaking down large food molecules into smaller ...
... pancreas (secretes several digestive enzymes into the small intestine), and the liver (secretes bile, a greenish fluid that breaks down fats). The function of the digestive system breaking down large food molecules into smaller ...
The Nervous System
... • More sodium channels that are voltage gated exist in the nearby membrane. These channels open in response to a change in voltage or charge near them. When that first gate opens by the stimulus and lets in the sodium, the other gates are triggered to open in a chain, adding more sodium and triggeri ...
... • More sodium channels that are voltage gated exist in the nearby membrane. These channels open in response to a change in voltage or charge near them. When that first gate opens by the stimulus and lets in the sodium, the other gates are triggered to open in a chain, adding more sodium and triggeri ...
lesson 4 PC 2.3 Cell Structure & Keratinisation
... structure called keratin. Keratin is a protein. Hair is 97% hard keratin Hard keratin (hair)contains more sulphur than soft keratin(skin) Hard keratin contains less moisture than soft keratin ...
... structure called keratin. Keratin is a protein. Hair is 97% hard keratin Hard keratin (hair)contains more sulphur than soft keratin(skin) Hard keratin contains less moisture than soft keratin ...
The Nervous System
... and regulates the influx of most compounds from blood to brain • Formed by brain microvascular endothelial cells (BMEC), astrocyte end feet and pericytes • Essential for normal function of CNS • Regulates passage of molecules in and out of brain to maintain neural environment. • Responsible for meta ...
... and regulates the influx of most compounds from blood to brain • Formed by brain microvascular endothelial cells (BMEC), astrocyte end feet and pericytes • Essential for normal function of CNS • Regulates passage of molecules in and out of brain to maintain neural environment. • Responsible for meta ...
Biochemistry Webquest
... A fat is a lipid that contains _________ glycerol linked to _________ fatty acids by Fats are often called _________ because of their structure Fats are lipids that are mostly _________ molecules Draw a fat and label the parts Some fatty acids contain _________bonds This causes _________in ...
... A fat is a lipid that contains _________ glycerol linked to _________ fatty acids by Fats are often called _________ because of their structure Fats are lipids that are mostly _________ molecules Draw a fat and label the parts Some fatty acids contain _________bonds This causes _________in ...
Chapter 1 - TeacherWeb
... General cellular respiration equation, total ATP produced, % energy of glucose harvested Cellular respiration – name four phases, starting reactants/ending products of each phase, location of each process, general understanding of each process, number of ATP & product at each stage produced by 1 glu ...
... General cellular respiration equation, total ATP produced, % energy of glucose harvested Cellular respiration – name four phases, starting reactants/ending products of each phase, location of each process, general understanding of each process, number of ATP & product at each stage produced by 1 glu ...
3d cell model directions1
... common materials. You will label the organelles on the model using a key to identify each organelle. Also on the key, you will identify the function of each organelle. Use the plant and animal cell drawings in your notes to help you remember the organelles and their functions. Requi rements: You may ...
... common materials. You will label the organelles on the model using a key to identify each organelle. Also on the key, you will identify the function of each organelle. Use the plant and animal cell drawings in your notes to help you remember the organelles and their functions. Requi rements: You may ...
B2.1_Cells
... All living things are made up of cells. The structures of different types of cells are related to their functions. ...
... All living things are made up of cells. The structures of different types of cells are related to their functions. ...
Ch1_2
... • Expect for water, most of the molecules found in the cell are macromolecules, can be classified into four different categories: – Lipids – Carbohydrates – Proteins – Nucleic acids ...
... • Expect for water, most of the molecules found in the cell are macromolecules, can be classified into four different categories: – Lipids – Carbohydrates – Proteins – Nucleic acids ...
CHAPTER 4 The Organization of Cells
... • Integral membrane proteins are inserted into the phospholipid bilayer. • Peripheral proteins attach to its surface by ionic bonds, H-bonds, and/or polar interactions. ...
... • Integral membrane proteins are inserted into the phospholipid bilayer. • Peripheral proteins attach to its surface by ionic bonds, H-bonds, and/or polar interactions. ...
Absorption and Secretion
... The Plasma Membrane • One end of a phospholipid molecule is hydrophilic (water loving), this is called the tail. The other end is hydrophobic (water hating), this is called the head. • The hydrophillic heads are water soluble and make up the 2 outer surfaces, where they form bonds with hydrogen mol ...
... The Plasma Membrane • One end of a phospholipid molecule is hydrophilic (water loving), this is called the tail. The other end is hydrophobic (water hating), this is called the head. • The hydrophillic heads are water soluble and make up the 2 outer surfaces, where they form bonds with hydrogen mol ...
cell_organelles
... Storage container for water, food, enzymes, wastes, pigments, etc. Large central vacuole in plant cells Many small vacuoles in animal cells What type of microscope may have been used to take this picture? ...
... Storage container for water, food, enzymes, wastes, pigments, etc. Large central vacuole in plant cells Many small vacuoles in animal cells What type of microscope may have been used to take this picture? ...
Peripheral Nervous System
... a. Autonomic neuron axon terminals form bead-like strands called ________________, which lie across the target tissue b. Neurotransmitter released from the varicosities diffuses to ____________ on the target tissue to produce a response c. The response ceases as the neurotransmitter diffuses _______ ...
... a. Autonomic neuron axon terminals form bead-like strands called ________________, which lie across the target tissue b. Neurotransmitter released from the varicosities diffuses to ____________ on the target tissue to produce a response c. The response ceases as the neurotransmitter diffuses _______ ...
Introduction - Cedar Crest College
... The phospholipids organize themselves into a bilayer with the hydrophilic regions facing either the outside of the cell or the interior cytoplasmic face. The hydrophobic, hydrocarbon-rich regions of each layer face each other and face away from the watery internal or external environment, an arrange ...
... The phospholipids organize themselves into a bilayer with the hydrophilic regions facing either the outside of the cell or the interior cytoplasmic face. The hydrophobic, hydrocarbon-rich regions of each layer face each other and face away from the watery internal or external environment, an arrange ...
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of events inside the cell, creating a response. Depending on the cell, the response alters the cell's metabolism, shape, gene expression, or ability to divide. The signal can be amplified at any step. Thus, one signaling molecule can cause many responses.