Bio 101 Study Objectives for Exam 1 1. Know the characteristics of life 2. Understand how transfer of energy in an ecosystem works between the trophic levels 3. Know two basic cell types 4. Understand the basic steps of the scientific method and the proper design of an experiment. Including the statement of the hypothesis and use of controls. Definitions Energy Matter Producers Consumers/ decomposers Hypothesis 1. Given any element and a periodic chart be able to determine
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unpleasantly strategic locations on your body ...) tend to be stored in adipose cells. Lipases are released into the bloodstream and break down fats in the bloodstream (from the fats and oils we eat) or travel to adipose cells. Lipases break the glycerol head away from the fatty acids in our
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an overall neutral charge with positive and negative sides such as H2O. 2. Compare macromolecules to Monomers; complete the chart below Example of a Macromolecule | Corresponding Monomer | polysaccharide | monosaccharide | lipids | glycerol‚ fatty acid | protein | Amino acids | nucleic acid | necleotides | CARBOHYDRATES 1. List the three main groups of carbohydrates. The three main group of carbohydrates are monosaccharides‚ disaccharides‚ and polysaccharides
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Biology 4U Exam Review Intro to Biochemistry Types of bonding: Ionic Results from the attraction between two oppositely charged atoms or molecules. They must lose or gain electrons to become charged. For example‚ a sodium molecule and a chlorine molecule form an ionic bond to create sodium chloride (NaCl) Covalent Results from the sharing of one or more pairs of valence electrons to create a stable molecule. For example‚ the covalent bonding of hydrogen ions creates hydrogen gas (H2)
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3 Domian System of Classification The Earth is 4.6 billion years old and microbial life is thought to have first appeared between 3.8 and 3.9 billion years ago; in fact‚ 80% of Earth’s history was exclusively microbial life. Microbial life is still the dominant life form on Earth. It has been estimated that the total number of microbial cells on Earth on the order of 2.5 X 1030 cells‚ making it the major fraction of biomass on the planet. Phylogeny refers to the evolutionary relationships between
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Amylase‚ (the enzyme found in saliva) breaks down starch into simple sugars such as maltose. The enzyme maltase in intestinal juice completes the break down of maltose into glucose. Lipases in pancreatic juice break down fats into fatty acids and glycerol‚ while proteinases continue the break down of proteins into amino acids. The gall bladder‚ located next to the liver‚ secretes bile into the duodenum. While bile does not contain enzymes; it contains bile salts and other substances that help to emulsify
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Jell-O and then ® poured into a plastic tray to harden into a slab called a gel. A plastic comb inserted at one end while the gel is hardening forms wells where DNA samples can be placed. The DNA is mixed with a loading buffer that contains glycerol—this makes it heavier than water‚ so it will sink to the bottom of the well. The gel is then covered with a buffer solution that can carry electric current‚ and electrodes are placed at each end of the gel and connected to a power supply. Because
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used in the production of hard and soft gelatin capsule: Limed bone- Blends of limed bone and Pigskin (LB/PS); used in pharmaceutical or in health and nutrition products Limed Ossein- is used in the manufacture of gelatin. Sorbitol/Sorbitan/Glycerol Blend- They enhance the capsule finish gloss for a premium appearance‚ help to prevent leakage‚ provide consistent pharmaceutical quality and extend shelf-life by maintaining a proper moisture balance within the capsule shell. Bovine and porcine
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adipose tissue will also be prevented by preventing the intracellular lipase that hydrolyses triglycerides to produce fatty acids (Wang et.al 2003). Insulin transfer glucose into adipocytes which can be utilized to synthesise glycerol in adipocytes (Jungas 1970). This glycerol together with the fatty acids carried from the liver‚ is utilised to synthesize triglyceride in the adipocyte. Insulin is associated in build-up of triglyceride in fat cells by these mechanisms and has a fat-sparing effect from
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3.1 Source of the Recombinant DNA Polymerase SK72 The recombinant E. coli BL21 (DE3) containing the pET 32b/ DNA polymerase SK72 gene was provided by the Laboratory of Enzyme and Microbial Technology‚ Institute of Bioscience‚ Universiti Putra Malaysia. 3.2 Preparation of the Lysogeny Broth (LB) Agar Plates LB agar plates were prepared by dissolving 10g tryptone‚ 5g yeast extract‚ 5g NaCl and 15g bacterial agar in 950mL of deionized water. The pH of the medium was adjusted to 7.5 using 1M NaOH before
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