Biology Chapter 7.2-7.3 Notes on Cells 2013
... o Water is a key component to living organisms, both inside and outside of the cell o The polar phosphate group allows the cell membrane to interact with the watery environment since water is also polar. o The two layers act as a barrier creating a water soluble layer at the outer surfaces and a wat ...
... o Water is a key component to living organisms, both inside and outside of the cell o The polar phosphate group allows the cell membrane to interact with the watery environment since water is also polar. o The two layers act as a barrier creating a water soluble layer at the outer surfaces and a wat ...
LECTURES 5, 6 Membrane protein lecture
... • Also called integral membrane proteins Peripheral membrane proteins • Are attached to either surface of the bilayer • Those attached to lipids are covalently linked • Those that interact with other transmembrane proteins are attached by noncovalent interactions, such as: – H-bonds, hydrophobi ...
... • Also called integral membrane proteins Peripheral membrane proteins • Are attached to either surface of the bilayer • Those attached to lipids are covalently linked • Those that interact with other transmembrane proteins are attached by noncovalent interactions, such as: – H-bonds, hydrophobi ...
Biochemistry_Summary
... 4)Antagonistic effect : 2 hormones work against each other . e.g; insulin & glucagon. - Signal Transduction : the conversion of one form of a signal to another>> cellular response. - Amplification is a must & it happens through enzyme activation or membrane channels activation . we don’t increase th ...
... 4)Antagonistic effect : 2 hormones work against each other . e.g; insulin & glucagon. - Signal Transduction : the conversion of one form of a signal to another>> cellular response. - Amplification is a must & it happens through enzyme activation or membrane channels activation . we don’t increase th ...
Document
... Large packets of substances and engulfed cells move across the plasma membrane by processes of endocytosis and exocytosis Membrane lipids and proteins move to and from the plasma membrane during these processes ...
... Large packets of substances and engulfed cells move across the plasma membrane by processes of endocytosis and exocytosis Membrane lipids and proteins move to and from the plasma membrane during these processes ...
Ch 11 Slides - people.iup.edu
... signaling molecules evolved in prokaryotes and were modified later in eukaryotes • The concentration of signaling molecules allows bacteria to detect population density • Quorum-sensing in Vibrio fischerii ...
... signaling molecules evolved in prokaryotes and were modified later in eukaryotes • The concentration of signaling molecules allows bacteria to detect population density • Quorum-sensing in Vibrio fischerii ...
Prokaryotes & Eukaryotes
... • Ends of proteins are hydrophyllic • Center is hydrophobic • Integral proteins go through membrane • Peripheral proteins are only on surface • Proteins have many functions (later) ...
... • Ends of proteins are hydrophyllic • Center is hydrophobic • Integral proteins go through membrane • Peripheral proteins are only on surface • Proteins have many functions (later) ...
Grade 6 Spelling
... consuming other living things 4. Chlorophyll- green photosynthetic pigment found in the chloroplasts of plants, algae, and some bacteria 5. Cellular respiration- process that releases energy by breaking down glucose and other food molecules in the presence of oxygen 6. Fermentation- process by which ...
... consuming other living things 4. Chlorophyll- green photosynthetic pigment found in the chloroplasts of plants, algae, and some bacteria 5. Cellular respiration- process that releases energy by breaking down glucose and other food molecules in the presence of oxygen 6. Fermentation- process by which ...
Chapter 18 – Eukaryotic Gene Regulation Cell Differentiation • All
... Have two domains DNA-binding domain Activation domain – initiates protein to protein binding w/ TFs (mediators) DNA-bending protein aligns activators w/ general TF (transcription complex forms) o Only a few types of enhancer sequences Alternate RNA Splicing o Different mature mRNA transcript ...
... Have two domains DNA-binding domain Activation domain – initiates protein to protein binding w/ TFs (mediators) DNA-bending protein aligns activators w/ general TF (transcription complex forms) o Only a few types of enhancer sequences Alternate RNA Splicing o Different mature mRNA transcript ...
Rods vs Cones
... • ~6 million/eye • most in center, especially in the fovea • Need bright light to reach threshold (photopic vision) • have 1-to-1 lines to brain- good for detail vision or “acuity” ...
... • ~6 million/eye • most in center, especially in the fovea • Need bright light to reach threshold (photopic vision) • have 1-to-1 lines to brain- good for detail vision or “acuity” ...
CELL WALL CELL MEMBRANE CYTOSKELETON NUCLEUS
... • Cookbook with recipes for making proteins • Proteins control chemical reactions • Sends out one recipe at a time ...
... • Cookbook with recipes for making proteins • Proteins control chemical reactions • Sends out one recipe at a time ...
Data Set Question 2
... Name: ________________________________________________ Date: _________________________ Period: ___________ Data Set Question 2 ...
... Name: ________________________________________________ Date: _________________________ Period: ___________ Data Set Question 2 ...
Receptors as drug targets
... recognizes two identical sequences of nucleotides in the DNA separated by a short distance. • For example, the estrogen ligand–receptor dimer binds to a nucleotide sequence of 5′AGGTCANNNTGACCT-3′ where N can be any nucleic acid base. • Depending on the complex involved, binding of the complex to DN ...
... recognizes two identical sequences of nucleotides in the DNA separated by a short distance. • For example, the estrogen ligand–receptor dimer binds to a nucleotide sequence of 5′AGGTCANNNTGACCT-3′ where N can be any nucleic acid base. • Depending on the complex involved, binding of the complex to DN ...
ELL Science Term 1 Exam 1 Study Guide
... Binomial nomenclature names organisms by ______________ and ______________. What is an enzyme? ...
... Binomial nomenclature names organisms by ______________ and ______________. What is an enzyme? ...
Chapter 15
... Controls related to transcription Transcript-processing controls Controls over translation Post-translation controls ...
... Controls related to transcription Transcript-processing controls Controls over translation Post-translation controls ...
Plant basal defenses 1. Pre-existing 2. Induced Pre
... surface, that is, the cuticle, stomata and cell walls. • Chemical barriers include compounds, such as phytoanticipins that have antimicrobial activity, and defensins, which interfere with pathogen nutrition and retard their development. ...
... surface, that is, the cuticle, stomata and cell walls. • Chemical barriers include compounds, such as phytoanticipins that have antimicrobial activity, and defensins, which interfere with pathogen nutrition and retard their development. ...
Cellular Transport – Active Transport Cells Review Questions
... __________________________________ are maintained at a ___________________________________ inside the cell, and ______________________ are maintained at ________________________________________________ inside the cell _________________________________ by protein molecules of the sodium and potassium ...
... __________________________________ are maintained at a ___________________________________ inside the cell, and ______________________ are maintained at ________________________________________________ inside the cell _________________________________ by protein molecules of the sodium and potassium ...
Loose Ends on Chapters 3,5,6
... • Dipicolinic acid theoretically may contribute to the stability of the nucleic acids which is a contributory to the spore’s survival- The Ca and the dipicolinic acid may enhance the activity of DNA binding proteins that are vital to the spore’s ability to resist radiation • Calcium contributes to t ...
... • Dipicolinic acid theoretically may contribute to the stability of the nucleic acids which is a contributory to the spore’s survival- The Ca and the dipicolinic acid may enhance the activity of DNA binding proteins that are vital to the spore’s ability to resist radiation • Calcium contributes to t ...
Passive Vs. Active Transport
... • Active Transport: When an input of energy is required to move materials through a cell membrane. (this could occur because the molecule is too large or because it is moving against the concentration gradient) – How do plant roots get their nutrients? • There is more nitrogen in the root of a plant ...
... • Active Transport: When an input of energy is required to move materials through a cell membrane. (this could occur because the molecule is too large or because it is moving against the concentration gradient) – How do plant roots get their nutrients? • There is more nitrogen in the root of a plant ...
Normal Protein Trafficking and the Unfolded Protein Response
... protein response is triggered. During the unfolded protein response cells may respond by: • destroying the proteins • trying to refold the proteins • commit apoptosis (cell suicide) ...
... protein response is triggered. During the unfolded protein response cells may respond by: • destroying the proteins • trying to refold the proteins • commit apoptosis (cell suicide) ...
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.