The Plasma Membrane and Transport
... naturally move from areas of higher concentration to lower concentration (no energy required) Diffusion – natural movement of molecules Facilitated Diffusion – through protein channels Osmosis – diffusion of water molecules ...
... naturally move from areas of higher concentration to lower concentration (no energy required) Diffusion – natural movement of molecules Facilitated Diffusion – through protein channels Osmosis – diffusion of water molecules ...
The Factory, The Cell
... The Workers A. Work on the assembly line, put the product together. B. Take orders from the manager, work hard to do their job well. ...
... The Workers A. Work on the assembly line, put the product together. B. Take orders from the manager, work hard to do their job well. ...
Ch. 18 Notes
... - General transcription factors are essential for the transcription of all protein-coding genes. - In eukaryotes, high levels of transcription of particular genes depend on control elements interacting with specific transcription factors. - Proximal control elements are located close to the promote ...
... - General transcription factors are essential for the transcription of all protein-coding genes. - In eukaryotes, high levels of transcription of particular genes depend on control elements interacting with specific transcription factors. - Proximal control elements are located close to the promote ...
Chapter 18 Regulation of Gene Expression
... - General transcription factors are essential for the transcription of all protein-coding genes. - In eukaryotes, high levels of transcription of particular genes depend on control elements interacting with specific transcription factors. - Proximal control elements are located close to the promote ...
... - General transcription factors are essential for the transcription of all protein-coding genes. - In eukaryotes, high levels of transcription of particular genes depend on control elements interacting with specific transcription factors. - Proximal control elements are located close to the promote ...
Document
... • The complex of DNA and proteins making up chromosomes is called chromatin. • Each eukaryotic species has a characteristic number of chromosomes. • A prominent structure within the nondividing nucleus is the nucleolus, which appears through the electron microscope as a mass of density stained gran ...
... • The complex of DNA and proteins making up chromosomes is called chromatin. • Each eukaryotic species has a characteristic number of chromosomes. • A prominent structure within the nondividing nucleus is the nucleolus, which appears through the electron microscope as a mass of density stained gran ...
Topic guide 14.2: Biological cell membranes
... membranes fits between fatty acid tails and provides stability. Some proteins have small polysaccharide branches attached to them – these are called glycoproteins. Phospholipids with polysaccharide branches attached are called glycolipids. Both glycoproteins and glycolipids help in cell recognition ...
... membranes fits between fatty acid tails and provides stability. Some proteins have small polysaccharide branches attached to them – these are called glycoproteins. Phospholipids with polysaccharide branches attached are called glycolipids. Both glycoproteins and glycolipids help in cell recognition ...
Cell Transport
... How does the selective permeability of the cell membrane affect the life of a cell in different environments? Review of Solutions • Solutions- mixture of a solute and a solvent • Solvent - the liquid into which the solute is dissolved. Ex) water • Solute - substance that is dissolved. Ex) Salt Semip ...
... How does the selective permeability of the cell membrane affect the life of a cell in different environments? Review of Solutions • Solutions- mixture of a solute and a solvent • Solvent - the liquid into which the solute is dissolved. Ex) water • Solute - substance that is dissolved. Ex) Salt Semip ...
Neuro Pathways
... Note: This pathway doesn’t relay in the thalamus or cross the midline Gustatory: taste buds solitary tract nucleus of the solitary tract anterior insula Note: This pathway doesn’t relay in the thalamus or cross the midline Vestibular: vestibulocochlear n. vestibular nuclei medial vesti ...
... Note: This pathway doesn’t relay in the thalamus or cross the midline Gustatory: taste buds solitary tract nucleus of the solitary tract anterior insula Note: This pathway doesn’t relay in the thalamus or cross the midline Vestibular: vestibulocochlear n. vestibular nuclei medial vesti ...
Notes
... •How do materials get across the plasma membrane? •Small, uncharged molecules pass through the membrane, following their concentration gradient (gradual change in chemical concentration from one area to another – molecules tend to move from area of high to low concentration). •Larger macromolecules ...
... •How do materials get across the plasma membrane? •Small, uncharged molecules pass through the membrane, following their concentration gradient (gradual change in chemical concentration from one area to another – molecules tend to move from area of high to low concentration). •Larger macromolecules ...
Systems Ch 2 BI
... as bacteria, amoebae, yeast and paramecia are made up of only one cell. They are called single-celled or unicellular organisms. Animals and plants are made up of many cells. They are called multicellular organisms. A human being, for example, is made up of trillions of cells. ...
... as bacteria, amoebae, yeast and paramecia are made up of only one cell. They are called single-celled or unicellular organisms. Animals and plants are made up of many cells. They are called multicellular organisms. A human being, for example, is made up of trillions of cells. ...
Chapter 6 - Auburn University
... A. typically large (~5 m) and singular B. nuclear envelope 1. double membrane surrounding the nucleus 2. nuclear pores – protein complexes that cross both membranes and regulate passage C. chromatin – DNA-protein complex 1. have granular appearance; easily stained for microscopy (“chrom-” = color) ...
... A. typically large (~5 m) and singular B. nuclear envelope 1. double membrane surrounding the nucleus 2. nuclear pores – protein complexes that cross both membranes and regulate passage C. chromatin – DNA-protein complex 1. have granular appearance; easily stained for microscopy (“chrom-” = color) ...
Use Your Own Paper - Phillips Scientific Methods
... 1) Explain the difference between prokaryotic and eukaryotic cells. ...
... 1) Explain the difference between prokaryotic and eukaryotic cells. ...
Slide 1 - PPKE-ITK
... mechanism. (4) Due to the tight coupling of OHCs with the BM and reticular lamina this active mechanism feeds energy back into the organ of Corti and IHCs are excited possibly via TM (Hensen's stripe) activation of IHC stereocilia. (5) The IHC-auditory nerve synapse is activated and a message is sen ...
... mechanism. (4) Due to the tight coupling of OHCs with the BM and reticular lamina this active mechanism feeds energy back into the organ of Corti and IHCs are excited possibly via TM (Hensen's stripe) activation of IHC stereocilia. (5) The IHC-auditory nerve synapse is activated and a message is sen ...
Cell Membrane and Transport
... cells. They have a number of functions, such as: keeping all cellular components inside the cell allowing selected molecules to move in and out of the cell isolating organelles from the rest of the cytoplasm, allowing cellular processes to occur separately. a site for biochemical reactions ...
... cells. They have a number of functions, such as: keeping all cellular components inside the cell allowing selected molecules to move in and out of the cell isolating organelles from the rest of the cytoplasm, allowing cellular processes to occur separately. a site for biochemical reactions ...
File
... shaped. We learned about many types of animal cells such as sperm, red blood cell, egg cell, skin,etc. These are all types of animal cells that look a specific way to fit their function. See the pictures we labeled in class. These are the most similar to the pictures on test. Can also find many exam ...
... shaped. We learned about many types of animal cells such as sperm, red blood cell, egg cell, skin,etc. These are all types of animal cells that look a specific way to fit their function. See the pictures we labeled in class. These are the most similar to the pictures on test. Can also find many exam ...
Document
... • Compare and/or contrast the structures found in plant cells and in animal cells. • Compare and/or contrast the structures found in prokaryotic and eukaryotic cells. • Describe how structures in cells are directly related to their function in the cell. • Explain the role of the cell membrane during ...
... • Compare and/or contrast the structures found in plant cells and in animal cells. • Compare and/or contrast the structures found in prokaryotic and eukaryotic cells. • Describe how structures in cells are directly related to their function in the cell. • Explain the role of the cell membrane during ...
No Slide Title - Suffolk County Community College
... A cell cannot control osmosis, it can only tolerate or counteract water movement All cells must deal with tonicity conditions in the environment: -isotonic solution: has a concentration of solutes equal to that inside the cell, no net movement of water ...
... A cell cannot control osmosis, it can only tolerate or counteract water movement All cells must deal with tonicity conditions in the environment: -isotonic solution: has a concentration of solutes equal to that inside the cell, no net movement of water ...
Unit 3( Celluar Transport)
... Unit: Cellular Transport Learning Goals: Students will be able to: A. ...
... Unit: Cellular Transport Learning Goals: Students will be able to: A. ...
Active Transport
... restrict or prevent the movement of some molecules, particularly large ones, the water (solvent) must be the one to move. ...
... restrict or prevent the movement of some molecules, particularly large ones, the water (solvent) must be the one to move. ...
Ch04_lecturestudents2nd
... • Chloroplasts capture energy from __________ and store it in ________ molecules. • They are the site of ________________, the process upon which all life depends. • Like mitochondria, chloroplasts contain both outer and inner membranes. Copyright © 2009 Pearson Education Inc. ...
... • Chloroplasts capture energy from __________ and store it in ________ molecules. • They are the site of ________________, the process upon which all life depends. • Like mitochondria, chloroplasts contain both outer and inner membranes. Copyright © 2009 Pearson Education Inc. ...
Cell nucleus
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.