Sept 19th Lecture 4
... In most cases substrates are held in the active site by weak interactions – interactions typically involve groups of a few amino acids on the active site Catalyze the conversion of substrate to product. – A single enzyme molecule can catalyze thousands or more reactions a second. – Enzymes are unaff ...
... In most cases substrates are held in the active site by weak interactions – interactions typically involve groups of a few amino acids on the active site Catalyze the conversion of substrate to product. – A single enzyme molecule can catalyze thousands or more reactions a second. – Enzymes are unaff ...
here - The University of Sydney
... removal of unwanted, damaged or infected cells. The central regulators of apoptotic programmed cell death belong to the BCL‐2 family of proteins. A delicate interplay between members of this family that promote cell survival (e.g. BCL‐2, BCL‐XL, MCL‐1) and thos ...
... removal of unwanted, damaged or infected cells. The central regulators of apoptotic programmed cell death belong to the BCL‐2 family of proteins. A delicate interplay between members of this family that promote cell survival (e.g. BCL‐2, BCL‐XL, MCL‐1) and thos ...
1) Which of the following is not true of
... 10. The kidneys use energy to move molecules and ions in order to keep the blood chemically balanced. This process is an example of cells using energy for what purpose? A B C D ...
... 10. The kidneys use energy to move molecules and ions in order to keep the blood chemically balanced. This process is an example of cells using energy for what purpose? A B C D ...
lec39_2013 - Andrew.cmu.edu
... c) rRNA – ribosomal RNA is found in the ribosome and is responsible for most of the function in protein synthesis. ...
... c) rRNA – ribosomal RNA is found in the ribosome and is responsible for most of the function in protein synthesis. ...
Biology Review Answers
... A) Sodium and potassium ions move by active transport, and glucose moves by osmosis. B) Sodium and potassium ions move by active transport, and glucose moves by facilitated diffusion. Due to the fact that they are highly charged molecules (and “hate” the nonpolar cell membrane and can’t pass thro ...
... A) Sodium and potassium ions move by active transport, and glucose moves by osmosis. B) Sodium and potassium ions move by active transport, and glucose moves by facilitated diffusion. Due to the fact that they are highly charged molecules (and “hate” the nonpolar cell membrane and can’t pass thro ...
Document
... Introduction Proteins have specific uses inside cells to support biochemical reactions important for cell structures and metabolic processes. Cells maintain a balanced internal environment that allows these proteins to retain the structure important to whatever action it performs. In this demo, the ...
... Introduction Proteins have specific uses inside cells to support biochemical reactions important for cell structures and metabolic processes. Cells maintain a balanced internal environment that allows these proteins to retain the structure important to whatever action it performs. In this demo, the ...
cbse class – x science solutions
... called pyruvate. This process takes place in the cytoplasm. Further, the pyruvate may be converted into ethanol and carbon dioxide. This process take place in yeast during fermentation. Since this process takes place in the absence in air (oxygen), it is called anaerobic respiration. Break-down of p ...
... called pyruvate. This process takes place in the cytoplasm. Further, the pyruvate may be converted into ethanol and carbon dioxide. This process take place in yeast during fermentation. Since this process takes place in the absence in air (oxygen), it is called anaerobic respiration. Break-down of p ...
45_Biochemistry of Muscles
... • Skeletal muscle contains phosphocreatine, which acts as an energy store for short-term (seconds) demands. • Free fatty acids in plasma are a major source of energy, particularly under marathon conditions and in prolonged starvation. • Skeletal muscle can utilize ketone bodies during starvation. • ...
... • Skeletal muscle contains phosphocreatine, which acts as an energy store for short-term (seconds) demands. • Free fatty acids in plasma are a major source of energy, particularly under marathon conditions and in prolonged starvation. • Skeletal muscle can utilize ketone bodies during starvation. • ...
Cellular Respiration: Harvesting Chemical Energy
... Unlike the explosive release of heat energy that occurs when H 2 and O2 are combined (with a spark for activation energy), cellular respiration uses an electron transport chain to break the fall of electrons to O2 into several steps. ...
... Unlike the explosive release of heat energy that occurs when H 2 and O2 are combined (with a spark for activation energy), cellular respiration uses an electron transport chain to break the fall of electrons to O2 into several steps. ...
Nerve activates contraction
... • All nutrient molecules are ultimately degraded or converted to glucose • Only glucose can be used to make ATP • Oxidation: cellular process of chemically breaking apart a glucose molecule to release energy ...
... • All nutrient molecules are ultimately degraded or converted to glucose • Only glucose can be used to make ATP • Oxidation: cellular process of chemically breaking apart a glucose molecule to release energy ...
Genetics
... transmission of genetic information. They are a set of instructions encoded in the nucleotide sequence of each organism. Genes code for the specific sequences of amino acids that comprise the proteins characteristic to that organism. • 3.2 Describe the basic process of DNA replication and how it rel ...
... transmission of genetic information. They are a set of instructions encoded in the nucleotide sequence of each organism. Genes code for the specific sequences of amino acids that comprise the proteins characteristic to that organism. • 3.2 Describe the basic process of DNA replication and how it rel ...
Chapter 20 Specific Catabolic Pathways: Carbohydrate, Lipid, and
... -Oxidation: A series of five enzyme-catalyzed reactions that cleaves carbon atoms two at a time from the carboxyl end of a fatty acid. • Reaction 1: The fatty acid is activated by conversion to an acyl CoA. Activation is equivalent to the hydrolysis of two high-energy phosphate anhydrides. O R-CH2 ...
... -Oxidation: A series of five enzyme-catalyzed reactions that cleaves carbon atoms two at a time from the carboxyl end of a fatty acid. • Reaction 1: The fatty acid is activated by conversion to an acyl CoA. Activation is equivalent to the hydrolysis of two high-energy phosphate anhydrides. O R-CH2 ...
Student Misconceptions
... carbon dioxide in the production of organic molecules. b. Students may think that respiration occurs only in green plants when there is no light energy for photosynthesis. ...
... carbon dioxide in the production of organic molecules. b. Students may think that respiration occurs only in green plants when there is no light energy for photosynthesis. ...
Elements and Compounds power point
... • What elements do you see in a plastic or fuel? • What type of organic molecule is it? ...
... • What elements do you see in a plastic or fuel? • What type of organic molecule is it? ...
lec32_F2015
... molecules (60 kJ/mol). The released pyrophosphate is hydrolyzed to inorganic phosphate, making the overall ΔG negative for the reaction (indirect coupling). Note: it is only necessary to utilize ATP once in the activation of the fatty acid. B. Transport into mitochondria: The acyl-CoA is transported ...
... molecules (60 kJ/mol). The released pyrophosphate is hydrolyzed to inorganic phosphate, making the overall ΔG negative for the reaction (indirect coupling). Note: it is only necessary to utilize ATP once in the activation of the fatty acid. B. Transport into mitochondria: The acyl-CoA is transported ...
Molecular Genetics
... three basic parts • 1. pentose sugar • 2. phosphate and nitrogen base • 3. notice that there are two classes of nitrogen containing bases ...
... three basic parts • 1. pentose sugar • 2. phosphate and nitrogen base • 3. notice that there are two classes of nitrogen containing bases ...
Kinases
... Assuming that each branch point represented a gene duplication event, the immediate ancestral gene as it was at the time of duplication was given a name (fig 1) and a sequence was determined as a consensus sequence of its progeny using its nearest neighbour as an outgroup to determine which amino ac ...
... Assuming that each branch point represented a gene duplication event, the immediate ancestral gene as it was at the time of duplication was given a name (fig 1) and a sequence was determined as a consensus sequence of its progeny using its nearest neighbour as an outgroup to determine which amino ac ...
Secondary Products
... Certain phenolics (furanocoumarins) are phototoxic - not toxic till activated by sunlight (near UV-A) Activated furanocoumarins can insert into DNA and bind to pyrimidine bases - blocks transcription and leads to cell ...
... Certain phenolics (furanocoumarins) are phototoxic - not toxic till activated by sunlight (near UV-A) Activated furanocoumarins can insert into DNA and bind to pyrimidine bases - blocks transcription and leads to cell ...
this lecture as PDF here
... Lipids are anhydrous due to non-polar nature and represent more energy than carbohydrates which are heavily hydrated due to polar nature. The presence of lipids in diet contributes considerably to palatability. Lipids contribute palatability in two ways. They induce olfactory responses, namely ...
... Lipids are anhydrous due to non-polar nature and represent more energy than carbohydrates which are heavily hydrated due to polar nature. The presence of lipids in diet contributes considerably to palatability. Lipids contribute palatability in two ways. They induce olfactory responses, namely ...
Molecular Genetics
... three basic parts • 1. pentose sugar • 2. phosphate and nitrogen base • 3. notice that there are two classes of nitrogen containing bases ...
... three basic parts • 1. pentose sugar • 2. phosphate and nitrogen base • 3. notice that there are two classes of nitrogen containing bases ...
the language of biology - Gonzaga College High School
... often called junk DNA, some is involved regulating when the genes are expressed, but most has no known function. This high percentage of "junk DNA" results from a phenomenon known as "duplication and divergence". Check out a representation of gene/chromosome organization. ...
... often called junk DNA, some is involved regulating when the genes are expressed, but most has no known function. This high percentage of "junk DNA" results from a phenomenon known as "duplication and divergence". Check out a representation of gene/chromosome organization. ...
Biochemistry
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Biochemistry, sometimes called biological chemistry, is the study of chemical processes within and relating to living organisms. By controlling information flow through biochemical signaling and the flow of chemical energy through metabolism, biochemical processes give rise to the complexity of life. Over the last decades of the 20th century, biochemistry has become so successful at explaining living processes that now almost all areas of the life sciences from botany to medicine to genetics are engaged in biochemical research. Today, the main focus of pure biochemistry is in understanding how biological molecules give rise to the processes that occur within living cells, which in turn relates greatly to the study and understanding of whole organisms.Biochemistry is closely related to molecular biology, the study of the molecular mechanisms by which genetic information encoded in DNA is able to result in the processes of life. Depending on the exact definition of the terms used, molecular biology can be thought of as a branch of biochemistry, or biochemistry as a tool with which to investigate and study molecular biology.Much of biochemistry deals with the structures, functions and interactions of biological macromolecules, such as proteins, nucleic acids, carbohydrates and lipids, which provide the structure of cells and perform many of the functions associated with life. The chemistry of the cell also depends on the reactions of smaller molecules and ions. These can be inorganic, for example water and metal ions, or organic, for example the amino acids which are used to synthesize proteins. The mechanisms by which cells harness energy from their environment via chemical reactions are known as metabolism. The findings of biochemistry are applied primarily in medicine, nutrition, and agriculture. In medicine, biochemists investigate the causes and cures of disease. In nutrition, they study how to maintain health and study the effects of nutritional deficiencies. In agriculture, biochemists investigate soil and fertilizers, and try to discover ways to improve crop cultivation, crop storage and pest control.