I. A panoramic view of the cell
... B. Passive transport is diffusion across a membrane. a) Diffusion: The spontaneous movement of a substance down its concentration gradient. Figure 8.8 C. Osmosis is the passive transport of water. Figure 8.9 a) Water flows across a membrane from the side where soute is less concentrated (hypotonic) ...
... B. Passive transport is diffusion across a membrane. a) Diffusion: The spontaneous movement of a substance down its concentration gradient. Figure 8.8 C. Osmosis is the passive transport of water. Figure 8.9 a) Water flows across a membrane from the side where soute is less concentrated (hypotonic) ...
Gram-Negative Bacteria: “Inner” vs. “Cytoplasmic” or “Plasma
... a completely different chemical composition [6]. It is highly asymmetric and contains some specific compounds such as Braun’s lipoprotein and glycolipids (among which, in the outer leaflet, the lipopolysaccharides) that are never found in the cytoplasmic membranes. Moreover, most outer membrane prot ...
... a completely different chemical composition [6]. It is highly asymmetric and contains some specific compounds such as Braun’s lipoprotein and glycolipids (among which, in the outer leaflet, the lipopolysaccharides) that are never found in the cytoplasmic membranes. Moreover, most outer membrane prot ...
A structural genomics approach to membrane transport proteins
... The hydrophobic bilayer membrane that bounds cells is inherently impermeable to the great majority of hydrophilic solutes required for cell nutrition and to many of the waste products and/or toxins that must be excreted. Accordingly, the membrane contains proteins, the sole function of which is to c ...
... The hydrophobic bilayer membrane that bounds cells is inherently impermeable to the great majority of hydrophilic solutes required for cell nutrition and to many of the waste products and/or toxins that must be excreted. Accordingly, the membrane contains proteins, the sole function of which is to c ...
Cell - BMCB - Cornell University
... "Previous research has focused on the enzymes called kinases that add phosphates to proteins or lipids (on-switch). We considered the alternative that phosphatases (off-switch) have crucial roles in regulating essential signaling pathways that take place at the cell surface," explained first-author ...
... "Previous research has focused on the enzymes called kinases that add phosphates to proteins or lipids (on-switch). We considered the alternative that phosphatases (off-switch) have crucial roles in regulating essential signaling pathways that take place at the cell surface," explained first-author ...
BCOR 011 Exam 2, 2004
... C. water molecules are split to provide electrons for Photosystem II D. water molecules are split to provide electrons for Photosystem I E. when electron in the electron transport chain reach the final acceptor 35. In cyclic electron flow A. oxygen gas is released B. ATP is formed C. water donates e ...
... C. water molecules are split to provide electrons for Photosystem II D. water molecules are split to provide electrons for Photosystem I E. when electron in the electron transport chain reach the final acceptor 35. In cyclic electron flow A. oxygen gas is released B. ATP is formed C. water donates e ...
ETC Details
... • How cells take molecules from food and turn them into molecules for growth and repair • Aka Metabolic Pool • Intermediaries of all cycles can be removed and used to build molecules! • Ex. pyruvate glucose • Acetyl CoA fatty acids ...
... • How cells take molecules from food and turn them into molecules for growth and repair • Aka Metabolic Pool • Intermediaries of all cycles can be removed and used to build molecules! • Ex. pyruvate glucose • Acetyl CoA fatty acids ...
The Photosynthetic Dark Reactions Do Not Operate
... in the dark, provided that the concentrations of ATP and NADPH were maintained high. When these photosynthetic substrates were depleted, the enzyme reactions stopped. Because there was some residual enzyme activity in the dark, the pathway was commonly dubbed the ‘‘dark reactions.’’ But the fact of ...
... in the dark, provided that the concentrations of ATP and NADPH were maintained high. When these photosynthetic substrates were depleted, the enzyme reactions stopped. Because there was some residual enzyme activity in the dark, the pathway was commonly dubbed the ‘‘dark reactions.’’ But the fact of ...
AP Biology Summer Session Lecture 6
... When O2 is scarce cells will undergo lactic acid fermentation The waste product, lactate, ...
... When O2 is scarce cells will undergo lactic acid fermentation The waste product, lactate, ...
Unit 2
... 6. Explain how hydrophobic interactions determine membrane structure and function. Membranes are not static sheets of molecules locked rigidly in place. A membrane is held together primarily by hydrophobic interactions, which are much weaker than covalent bonds. 7. Describe how proteins are spatiall ...
... 6. Explain how hydrophobic interactions determine membrane structure and function. Membranes are not static sheets of molecules locked rigidly in place. A membrane is held together primarily by hydrophobic interactions, which are much weaker than covalent bonds. 7. Describe how proteins are spatiall ...
Cellular Transport WebQuest
... 3.) The file for this Internet activity is located in “Files and Forms”. You may find it easier to copy and paste the addresses from the blank form instead of typing each one in. Part 2 - “ Components of a Cell Membrane" http://www.biologymad.com/cells/cellmembrane.htm 1. Cell Membranes are made up ...
... 3.) The file for this Internet activity is located in “Files and Forms”. You may find it easier to copy and paste the addresses from the blank form instead of typing each one in. Part 2 - “ Components of a Cell Membrane" http://www.biologymad.com/cells/cellmembrane.htm 1. Cell Membranes are made up ...
Ch 9 Practice Q word
... Practice questions Ch 9 STUDY NOTES AND TEXTBOOK BEFORE ATTEMPTING THESE. This is NOT COMPREHENSIVE (does not contain all the information you need to study for the exam. Consult note and textbook) ...
... Practice questions Ch 9 STUDY NOTES AND TEXTBOOK BEFORE ATTEMPTING THESE. This is NOT COMPREHENSIVE (does not contain all the information you need to study for the exam. Consult note and textbook) ...
The 18-kD Protein That Binds to the Chloroplast DNA
... the 18-kD band. This result supports the conclusion that the 18-kD DNA-binding protein is the gene product of frxB. The following information led us to investigate whether the 18-kD protein is related to a subunit of NADH dehydrogenase. In the chloroplast genome of both tobacco and liverwort, the fr ...
... the 18-kD band. This result supports the conclusion that the 18-kD DNA-binding protein is the gene product of frxB. The following information led us to investigate whether the 18-kD protein is related to a subunit of NADH dehydrogenase. In the chloroplast genome of both tobacco and liverwort, the fr ...
Homeostasis and Transport Notes
... Types of Active Transport • Protein Pumps – A membrane protein and ATP are used to pump substances against their concentration gradient across into or out of the cell. • Example - Na/K ATP pump ...
... Types of Active Transport • Protein Pumps – A membrane protein and ATP are used to pump substances against their concentration gradient across into or out of the cell. • Example - Na/K ATP pump ...
Honors Biology Unit 1 Objectives: The Chemistry of Life
... 8. (very related to number 7…) Explain why organ systems are a necessity for large, multicellular organisms. 9. Given a light microscope and a variety of slides: a) correctly identify the level of cellular organization demonstrated by the specimen. (unicellular, colony, tissue, organ, system, or org ...
... 8. (very related to number 7…) Explain why organ systems are a necessity for large, multicellular organisms. 9. Given a light microscope and a variety of slides: a) correctly identify the level of cellular organization demonstrated by the specimen. (unicellular, colony, tissue, organ, system, or org ...
Cell Membrane Structure
... hormones, fat-soluble vitamins 6 , fatty acids, oxygen (Ah, here is Mr. O’Too again!) and carbon dioxide molecules. ...
... hormones, fat-soluble vitamins 6 , fatty acids, oxygen (Ah, here is Mr. O’Too again!) and carbon dioxide molecules. ...
The Cell Membrane
... Permeability to polar molecules? Membrane becomes semi-permeable via protein channels ...
... Permeability to polar molecules? Membrane becomes semi-permeable via protein channels ...
RNA editing of cytochrome c maturation transcripts is highly
... RNA editing factor (MORF) proteins are essential components of the editosome complex. Overexpression of AtPAP2, a phosphatase located on the outer membranes of two important energy‐producing organelles (chloroplasts and mitochondria), leads to higher energy outputs ...
... RNA editing factor (MORF) proteins are essential components of the editosome complex. Overexpression of AtPAP2, a phosphatase located on the outer membranes of two important energy‐producing organelles (chloroplasts and mitochondria), leads to higher energy outputs ...
Plasma Membrane
... Gases readily diffuse through lipid bilayer. (Ex. movement of oxygen inside cells and CO2 outside) ...
... Gases readily diffuse through lipid bilayer. (Ex. movement of oxygen inside cells and CO2 outside) ...
Cell Membranes The composition of nearly all cell
... Osmosis Osmosis is the movement of water through a selectively permeable membrane. If a substance is able to diffuse across a membrane, the membrane is said to be permeable to it. A membrane is impermeable to substances that cannot pass across it. Most biological membranes are selectively permeable ...
... Osmosis Osmosis is the movement of water through a selectively permeable membrane. If a substance is able to diffuse across a membrane, the membrane is said to be permeable to it. A membrane is impermeable to substances that cannot pass across it. Most biological membranes are selectively permeable ...
Cellular Respiration
... their arrangement of atoms Fats, CH2O protein can all be used as fuel . Traditionally, cellular respiration is studied using glucose as the source. There are 2 energy-providing (catabolic) pathways ...
... their arrangement of atoms Fats, CH2O protein can all be used as fuel . Traditionally, cellular respiration is studied using glucose as the source. There are 2 energy-providing (catabolic) pathways ...
Thylakoid
A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen. Chloroplast thylakoids frequently form stacks of disks referred to as grana (singular: granum). Grana are connected by intergranal or stroma thylakoids, which join granum stacks together as a single functional compartment.