1 Lecture 34 – Cell Cycle Control and Cancer Genetics I. Cancers
... - similar cell-cycle control system as humans - reproduce rapidly - genes can be deleted, replaced or altered - can proliferate in haploid state D. regulation of cell cycle 1. several important points in cycle (2 shown) - regulated by activity of dimeric protein complex CDK = cyclin dependent kinase ...
... - similar cell-cycle control system as humans - reproduce rapidly - genes can be deleted, replaced or altered - can proliferate in haploid state D. regulation of cell cycle 1. several important points in cycle (2 shown) - regulated by activity of dimeric protein complex CDK = cyclin dependent kinase ...
Chapter 3 The Basic Structure of a Cell
... 1. Viruses: they are able to reproduce only within a living cell. 2. Slime mold. ...
... 1. Viruses: they are able to reproduce only within a living cell. 2. Slime mold. ...
05 Bioelectrical phenomena in nervous cells
... Forces that determine ionic movement Electrostatic forces Opposite charges attract Identical charges repel Concentration forces Diffusion – movement of ions through semipermeable membrane Osmosis – movement of water from region of high concentration to low ...
... Forces that determine ionic movement Electrostatic forces Opposite charges attract Identical charges repel Concentration forces Diffusion – movement of ions through semipermeable membrane Osmosis – movement of water from region of high concentration to low ...
How things get in and out of a Cell HOMEOSTASIS
... How things get in and out of a Cell HOMEOSTASIS Maintaining a constant internal environment • the human body maintains homeostasis through body temperature, blood pressure, heart rate, oxygen balance and water balance, and waste disposal. ...
... How things get in and out of a Cell HOMEOSTASIS Maintaining a constant internal environment • the human body maintains homeostasis through body temperature, blood pressure, heart rate, oxygen balance and water balance, and waste disposal. ...
science process skills
... Acellular – Viruses do not have cellular components, nor do they grow or metabolize organic materials. They generally consist of a piece of nucleic acid encased in protein which must use the cellular components of a living cell to reproduce. Prions (proteinaceous infectious particles) are infectio ...
... Acellular – Viruses do not have cellular components, nor do they grow or metabolize organic materials. They generally consist of a piece of nucleic acid encased in protein which must use the cellular components of a living cell to reproduce. Prions (proteinaceous infectious particles) are infectio ...
Liver X Receptorβ inhibits the transformation of radial glial cells into
... Liver X receptor is a member of the nuclear receptor superfamily of ligand-activated transcription factors, predominantly expressed in the cerebral cortex. We have previously demonstrated that LXRβ is essential for migration of later-born neurons during cerebral cortex development. The radial glial ...
... Liver X receptor is a member of the nuclear receptor superfamily of ligand-activated transcription factors, predominantly expressed in the cerebral cortex. We have previously demonstrated that LXRβ is essential for migration of later-born neurons during cerebral cortex development. The radial glial ...
Passive Transport
... collect excess water and force it out Animal Cells – avoid swelling by osmosis by removing dissolved particles from cytoplasm. This increases concentration of free water molecules inside cell. ...
... collect excess water and force it out Animal Cells – avoid swelling by osmosis by removing dissolved particles from cytoplasm. This increases concentration of free water molecules inside cell. ...
Cell History and Structure - Fort Thomas Independent Schools
... c. lysosomes b. Golgi bodies d. vacuoles 10. How does a bacterial cell differ from a plant or animal cell? a. It is larger. c. It has no cytoplasm. b. It does not have a nucleus. d. It has no organelles. 11. Cells in many-celled organisms a. all look the same. c. are often quite different from one a ...
... c. lysosomes b. Golgi bodies d. vacuoles 10. How does a bacterial cell differ from a plant or animal cell? a. It is larger. c. It has no cytoplasm. b. It does not have a nucleus. d. It has no organelles. 11. Cells in many-celled organisms a. all look the same. c. are often quite different from one a ...
Mitochondria
... transport proteins which make it selectively permeable to those small molecules that are metabolized in the matrix space. 10. Matrix enzymes include those that metabolise pyruvate and fatty acids to produce acetylCoA, and those that utilise acetylCoA in the Citric Acid Cycle. Principal end products ...
... transport proteins which make it selectively permeable to those small molecules that are metabolized in the matrix space. 10. Matrix enzymes include those that metabolise pyruvate and fatty acids to produce acetylCoA, and those that utilise acetylCoA in the Citric Acid Cycle. Principal end products ...
prokaryote cell
... – nitrogen fixation • only organisms that can fix N from atmosphere – needed for synthesis of proteins & nucleic acids – plant root nodules ...
... – nitrogen fixation • only organisms that can fix N from atmosphere – needed for synthesis of proteins & nucleic acids – plant root nodules ...
Chapter 39: Plant Communication
... Plants and their Environments Plants are living and respond to envir. They detect light and gravity especially. Plants respond by altering growth. Receptors receive signals and initiate a cellular response. –Signal Transduction Pathway –Ex: Potatoes bud in dark not light b/c they grow in absence of ...
... Plants and their Environments Plants are living and respond to envir. They detect light and gravity especially. Plants respond by altering growth. Receptors receive signals and initiate a cellular response. –Signal Transduction Pathway –Ex: Potatoes bud in dark not light b/c they grow in absence of ...
What are Tetrahymena? - Department of Biological Sciences
... • Cold GTP doesn’t compete with hot ATP for binding (and vice-versa) • No cross-adaptation (behavior and binding) • ATP responses are inhibited by pertussis toxin, calphostin C and Rp-cAMPS but not GTP responses • The ATP receptor may be metabotropic (P2Y-like?) and the GTP receptor ionotropic (nove ...
... • Cold GTP doesn’t compete with hot ATP for binding (and vice-versa) • No cross-adaptation (behavior and binding) • ATP responses are inhibited by pertussis toxin, calphostin C and Rp-cAMPS but not GTP responses • The ATP receptor may be metabotropic (P2Y-like?) and the GTP receptor ionotropic (nove ...
No Slide Title
... across the synaptic cleft to the postsynaptic membrane where they attach to the binding sites of specialised protein receptors. A neurotransmitter molecule fits into a binding site like a key in a lock so receptors only work with a specific neurotransmitter. To complicate matters each neurotrans ...
... across the synaptic cleft to the postsynaptic membrane where they attach to the binding sites of specialised protein receptors. A neurotransmitter molecule fits into a binding site like a key in a lock so receptors only work with a specific neurotransmitter. To complicate matters each neurotrans ...
What do cells do with all that energy?
... a. Where in the plant cell would you expect to find this reaction occurring? b. Name another organelle in all plant cells that it needs for structure & support. c. How many carbon dioxide molecules are in the reactant? d. If you start with 12 oz. of carbon dioxide & 16 oz. of water, and you end up w ...
... a. Where in the plant cell would you expect to find this reaction occurring? b. Name another organelle in all plant cells that it needs for structure & support. c. How many carbon dioxide molecules are in the reactant? d. If you start with 12 oz. of carbon dioxide & 16 oz. of water, and you end up w ...
Photo CR reading
... autotrophs, which can produce their own sugars. Photosynthesis takes place in the chloroplasts in Eukaryotic Plant Cells. ...
... autotrophs, which can produce their own sugars. Photosynthesis takes place in the chloroplasts in Eukaryotic Plant Cells. ...
Chemistry in Biology - Welcome to teachers.olatheschools.com!
... The number and the order in which the amino acids are joined define the protein’s primary structure. After an amino acid chain is formed, it folds into a unique three-dimensional shape, which is the protein’s secondary structure, such as a helix or a ...
... The number and the order in which the amino acids are joined define the protein’s primary structure. After an amino acid chain is formed, it folds into a unique three-dimensional shape, which is the protein’s secondary structure, such as a helix or a ...
UNIT 3 Module 4.1 Microscopes provide windows to the world of the
... dispersed inside the nucleus. Each strand of chromatin constitutes a chromosome. Prior to cell division, DNA is duplicated (see Module 10.4 and 10.5). C. During cell division, chromosomes coil up and become visible through a light microscope. D. The nucleolus, also within the nucleus, is composed of ...
... dispersed inside the nucleus. Each strand of chromatin constitutes a chromosome. Prior to cell division, DNA is duplicated (see Module 10.4 and 10.5). C. During cell division, chromosomes coil up and become visible through a light microscope. D. The nucleolus, also within the nucleus, is composed of ...
Neoplasm
... protooncogenes, released out-of-control. 31. The second stage of carcinogenesis is called +a) promotion; b) co-carcinogenesis; c) syn-carcinogenesis; d) initiation; e) pro-carcinogenesis. 32. Metastasis of tumor cells occurs in stage +a) progression; b) initiation; c) promotion. 33. Anti-transformat ...
... protooncogenes, released out-of-control. 31. The second stage of carcinogenesis is called +a) promotion; b) co-carcinogenesis; c) syn-carcinogenesis; d) initiation; e) pro-carcinogenesis. 32. Metastasis of tumor cells occurs in stage +a) progression; b) initiation; c) promotion. 33. Anti-transformat ...
Biochemistry Ch 37 696-706 [4-20
... released into the lung, but blocked by a-1-antitrypsin (protease inhibitor). People with mutation in a-1-antitrypsin can lead to emphysema caused by proteolytic destruction of lung cells -pancreas synthesizes zymogens and trypsin inhibitor in granules. Trypsin inhibitor prevents accidental trypsin a ...
... released into the lung, but blocked by a-1-antitrypsin (protease inhibitor). People with mutation in a-1-antitrypsin can lead to emphysema caused by proteolytic destruction of lung cells -pancreas synthesizes zymogens and trypsin inhibitor in granules. Trypsin inhibitor prevents accidental trypsin a ...
Cell Organelle Functions Presentation
... • Which organelle controls what goes into or out of the cell? Cell membrane • Which organelle controls what goes into and out of the nucleus? Nuclear membrane • What substance contains the instructions for everything the cell does? DNA ...
... • Which organelle controls what goes into or out of the cell? Cell membrane • Which organelle controls what goes into and out of the nucleus? Nuclear membrane • What substance contains the instructions for everything the cell does? DNA ...
protein
... Pure proteins can be used to determine what other proteins or molecules they might interact with. Pure proteins are needed for studies of protein function (e.g. Are there regulatory subunits? Is it phosphorylated? Is the protein regulated by its interactions with other proteins? Etc.) ...
... Pure proteins can be used to determine what other proteins or molecules they might interact with. Pure proteins are needed for studies of protein function (e.g. Are there regulatory subunits? Is it phosphorylated? Is the protein regulated by its interactions with other proteins? Etc.) ...
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.