lecture 3 - aldehydes and ketones
... As a result of unequal sharing, the carbonyl bond is polar covalent and the oxygen acquires a partial negative charge. Dipole/dipole interactions aren’t as strong as hydrogen bonds, but they do cause aldehydes and ketones to boil at higher temperatures than alkanes. O d O ...
... As a result of unequal sharing, the carbonyl bond is polar covalent and the oxygen acquires a partial negative charge. Dipole/dipole interactions aren’t as strong as hydrogen bonds, but they do cause aldehydes and ketones to boil at higher temperatures than alkanes. O d O ...
Cellular Respiration PPt
... substances to make organic compounds. Heterotrophs are organisms that must consume other organisms as food to get their energy. Regents Biology ...
... substances to make organic compounds. Heterotrophs are organisms that must consume other organisms as food to get their energy. Regents Biology ...
1 CHAPTER 15. BIOCHEMISTRY: THE CHEMISTRY OF OUR
... Starch molecules are polymers of glucose with about 1000 to 4000 glucose units per molecule, linked together as shown in Fig. 15-2; such a sugar polymer is also called a polysaccharide. They are found mainly in the seeds of plants, where they serve as a reserve food supply for the newly sprouted pla ...
... Starch molecules are polymers of glucose with about 1000 to 4000 glucose units per molecule, linked together as shown in Fig. 15-2; such a sugar polymer is also called a polysaccharide. They are found mainly in the seeds of plants, where they serve as a reserve food supply for the newly sprouted pla ...
Biology 611 - nnhsbio611
... Part B—Test for Carbohydrates Test B.1. Benedict's Test for Simple Sugars There are many kinds of carbohydrate molecules, all of which are made up of various arrangements of carbon, hydrogen, and oxygen atoms. The simplest carbohydrates are monosaccharides, such as glucose and fructose. Disaccharid ...
... Part B—Test for Carbohydrates Test B.1. Benedict's Test for Simple Sugars There are many kinds of carbohydrate molecules, all of which are made up of various arrangements of carbon, hydrogen, and oxygen atoms. The simplest carbohydrates are monosaccharides, such as glucose and fructose. Disaccharid ...
Biology 12 – Practice Final Exam 5) Describe the changes that occur
... is smaller than starch therefore crossed the membrane by diffusion, from the higher [maltose] found inside the mixture and entered the lower [maltose] found inside the beaker. b) What statement can you make about the permeability of the membrane? (1 mark) The membrane is semi-permeable based on the ...
... is smaller than starch therefore crossed the membrane by diffusion, from the higher [maltose] found inside the mixture and entered the lower [maltose] found inside the beaker. b) What statement can you make about the permeability of the membrane? (1 mark) The membrane is semi-permeable based on the ...
Six Nutrients
... Carbohydrates are the most common source of energy in living things. 60% of your diet should come from carbohydrates. If carbohydrates are not used they are stored as fat in the body. ...
... Carbohydrates are the most common source of energy in living things. 60% of your diet should come from carbohydrates. If carbohydrates are not used they are stored as fat in the body. ...
chap1_SBI4U
... The precursor of several other steroids, such as sex hormones testosterone and estrogen. Testosterone regulates sexual function and aids in building bone and muscle mass Estrogen regulates sexual function in females and acts to increase the storage of fat ...
... The precursor of several other steroids, such as sex hormones testosterone and estrogen. Testosterone regulates sexual function and aids in building bone and muscle mass Estrogen regulates sexual function in females and acts to increase the storage of fat ...
doc Vocabulary tests year 1 Sets of 10 words and
... Chemical elements present in carbohydrates and lipids ...
... Chemical elements present in carbohydrates and lipids ...
Bioloģija angliski
... A healthy diet needs to provide all the energy and 1. … that the body requires to stay healthy. It needs both variety and a balance of 2. … to provide everything that is neede. Foods are often grouped into six main groups: 3. … , vegetables, animal products, fruits, fats. It is also important to kee ...
... A healthy diet needs to provide all the energy and 1. … that the body requires to stay healthy. It needs both variety and a balance of 2. … to provide everything that is neede. Foods are often grouped into six main groups: 3. … , vegetables, animal products, fruits, fats. It is also important to kee ...
The trachea is lined with cilia.
... 6. Digested food + …………………… (Burning) …………+……….+……….. 7. The nose contains …………….. and ……………….. to filter the inhaled air from dust and microbes. 8. Nose is lined with ……………, ……………and ………………………… 9. Larynx is called …………………………. 10. Trachea is lined with …………………to …………………….. 11. Alveoli have ……………………… ...
... 6. Digested food + …………………… (Burning) …………+……….+……….. 7. The nose contains …………….. and ……………….. to filter the inhaled air from dust and microbes. 8. Nose is lined with ……………, ……………and ………………………… 9. Larynx is called …………………………. 10. Trachea is lined with …………………to …………………….. 11. Alveoli have ……………………… ...
Chapter 4 - Jenkins Independent Schools
... Carbon’s ability to bond easily and form compounds is the basis of life on Earth. A carbon atom has four electrons in its outer energy level, so it can form covalent bonds with as many as four other atoms. When carbon atoms form covalent bonds, they obtain the stability of a noble gas with eight ele ...
... Carbon’s ability to bond easily and form compounds is the basis of life on Earth. A carbon atom has four electrons in its outer energy level, so it can form covalent bonds with as many as four other atoms. When carbon atoms form covalent bonds, they obtain the stability of a noble gas with eight ele ...
Using energy Exercise
... Oxygen and glucose must be delivered to them more quickly Waste carbon dioxide must be removed more quickly This is achieved by increasing the heart rate, rate of breathing and the depth of breathing. The increased heart rate increases the rate of blood flow around the body. The increased rate and d ...
... Oxygen and glucose must be delivered to them more quickly Waste carbon dioxide must be removed more quickly This is achieved by increasing the heart rate, rate of breathing and the depth of breathing. The increased heart rate increases the rate of blood flow around the body. The increased rate and d ...
PRODUCTION OF MATERIALS SAMPLE
... AP (no other product) CP (small molecule e.g. H2O or NH3) AP (double/triple bonds) CP (functional groups) Sources of monomers AP (cracking petroleum) CP (degradation of polymers of b biological origins e.g. cellulose or industrially synthesised) Monomers/polymers/reactions (provide equations for pol ...
... AP (no other product) CP (small molecule e.g. H2O or NH3) AP (double/triple bonds) CP (functional groups) Sources of monomers AP (cracking petroleum) CP (degradation of polymers of b biological origins e.g. cellulose or industrially synthesised) Monomers/polymers/reactions (provide equations for pol ...
16.1 The Carbonyl Group
... 16.3 Properties of Aldehydes and Ketones • Aldehydes and ketones cannot hydrogen-bond with one another, so they are lower boiling than alcohols. • Aldehydes and ketones are higher boiling than alkanes because of the polarity of the carbonyl group. Common aldehydes and ketones are ...
... 16.3 Properties of Aldehydes and Ketones • Aldehydes and ketones cannot hydrogen-bond with one another, so they are lower boiling than alcohols. • Aldehydes and ketones are higher boiling than alkanes because of the polarity of the carbonyl group. Common aldehydes and ketones are ...
Biology – BC Revision Guide
... food enters (used it! to convert sweeter so you need fructose syrup a 13. What do carbohydrates break down to and how? glucose into fructose) less it. functions of bile? useful ingredient in 14. What areofthe slimming foods. 15. What is the function of hydrochloric acid in digestion? 16. What are th ...
... food enters (used it! to convert sweeter so you need fructose syrup a 13. What do carbohydrates break down to and how? glucose into fructose) less it. functions of bile? useful ingredient in 14. What areofthe slimming foods. 15. What is the function of hydrochloric acid in digestion? 16. What are th ...
Chapter 16 Aldehydes and Ketones I. Nucleophilic Addition to
... Dissolving aldehydes or ketones in water causes formation of an equilibrium between the carbonyl compound and its hydrate l The hydrate is also called a gem-diol l The equilibrum favors a ketone over its hydrate because the tetrahedral ketone hydrate is stericallycrowded l Aqueous solution of formal ...
... Dissolving aldehydes or ketones in water causes formation of an equilibrium between the carbonyl compound and its hydrate l The hydrate is also called a gem-diol l The equilibrum favors a ketone over its hydrate because the tetrahedral ketone hydrate is stericallycrowded l Aqueous solution of formal ...
102 Lecture Ch15
... • The most familiar chiral objects are your hands - the right hand is the mirror image of the left hand - no matter how you turn them, they can’t be superimposed • Many organic compounds are also chiral - most biomolecules (amino acids, sugars, etc.) are chiral and usually only one of the stereoisom ...
... • The most familiar chiral objects are your hands - the right hand is the mirror image of the left hand - no matter how you turn them, they can’t be superimposed • Many organic compounds are also chiral - most biomolecules (amino acids, sugars, etc.) are chiral and usually only one of the stereoisom ...
Unit 2: Carbon Compounds
... The repeating unit or the structure of a condensation polymer can be drawn given the monomer structures and vice versa. Polyesters are examples of condensation polymers. An amine can be identified from the functional group. Polyamides are examples of condensation polymers. The amide link i ...
... The repeating unit or the structure of a condensation polymer can be drawn given the monomer structures and vice versa. Polyesters are examples of condensation polymers. An amine can be identified from the functional group. Polyamides are examples of condensation polymers. The amide link i ...
Unit 2: Carbon Compounds
... Proteins are condensation polymers made of many amino acid molecules linked together. The structure of a section of protein is based on the constituent amino acids. Condensation of amino acids produces the peptide (amide) link. The peptide link is formed by the reaction of an amine group wit ...
... Proteins are condensation polymers made of many amino acid molecules linked together. The structure of a section of protein is based on the constituent amino acids. Condensation of amino acids produces the peptide (amide) link. The peptide link is formed by the reaction of an amine group wit ...
Question 1 - Free Exam Papers
... At temperatures above 40ºC, most enzymes start to be denatured. That is, their molecular structure is altered and they no longer work. Pepsin will work best at body temperature, 36-37ºC ...
... At temperatures above 40ºC, most enzymes start to be denatured. That is, their molecular structure is altered and they no longer work. Pepsin will work best at body temperature, 36-37ºC ...
ch 34 reviewing this chapter
... Digestion ch34 Mader #10 Good nutrition provides us with energy, essential amino acids, fatty acids and all necessary vitamins and minerals for all body functions. Consuming too many calories from any food source contributes to body fat, increasing a person’s risk of obesity. Obesity is having 30% ...
... Digestion ch34 Mader #10 Good nutrition provides us with energy, essential amino acids, fatty acids and all necessary vitamins and minerals for all body functions. Consuming too many calories from any food source contributes to body fat, increasing a person’s risk of obesity. Obesity is having 30% ...
22A - chemistry
... -1,6-glycosidic bonds (branches occur every 8 to 12 residues - more compact than starch) the total amount of glycogen in the body of a well-nourished adult human is about 350 g, divided almost equally between liver and ...
... -1,6-glycosidic bonds (branches occur every 8 to 12 residues - more compact than starch) the total amount of glycogen in the body of a well-nourished adult human is about 350 g, divided almost equally between liver and ...
Carbohydrate
A carbohydrate is a biological molecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen:oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula Cm(H2O)n (where m could be different from n). Some exceptions exist; for example, deoxyribose, a sugar component of DNA, has the empirical formula C5H10O4. Carbohydrates are technically hydrates of carbon; structurally it is more accurate to view them as polyhydroxy aldehydes and ketones.The term is most common in biochemistry, where it is a synonym of saccharide, a group that includes sugars, starch, and cellulose. The saccharides are divided into four chemical groups: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. In general, the monosaccharides and disaccharides, which are smaller (lower molecular weight) carbohydrates, are commonly referred to as sugars. The word saccharide comes from the Greek word σάκχαρον (sákkharon), meaning ""sugar."" While the scientific nomenclature of carbohydrates is complex, the names of the monosaccharides and disaccharides very often end in the suffix -ose. For example, grape sugar is the monosaccharide glucose, cane sugar is the disaccharide sucrose and milk sugar is the disaccharide lactose (see illustration).Carbohydrates perform numerous roles in living organisms. Polysaccharides serve for the storage of energy (e.g., starch and glycogen) and as structural components (e.g., cellulose in plants and chitin in arthropods). The 5-carbon monosaccharide ribose is an important component of coenzymes (e.g., ATP, FAD and NAD) and the backbone of the genetic molecule known as RNA. The related deoxyribose is a component of DNA. Saccharides and their derivatives include many other important biomolecules that play key roles in the immune system, fertilization, preventing pathogenesis, blood clotting, and development.In food science and in many informal contexts, the term carbohydrate often means any food that is particularly rich in the complex carbohydrate starch (such as cereals, bread and pasta) or simple carbohydrates, such as sugar (found in candy, jams, and desserts).