Table of Contents
What is molecular structure?
Molecular geometry, also known as the molecular structure, is the three-dimensional structure or arrangement of atoms in a molecule. Understanding the molecular structure of a compound can help determine the polarity, reactivity, phase of matter, color, magnetism, as well as the biological activity.
What does ribose look like?
Ribose is an organic compound classified as a monosaccharide, or simple sugar. Ribose is composed of five carbon atoms, ten hydrogen atoms, and five oxygen atoms that have been bonded together. This means that the five carbons that form the majority of the structure give the molecule a pentagon shape.
What does Deoxyribose look like?
Deoxyribose consists of five carbon atoms that form a pentagonal shape. As you can tell by its name, deoxyribose is a particular type of sugar known as a pentose monosaccharide, which contains five carbon atoms. It’s a normal sugar that has one oxygen atom attached to each carbon atom. Sep 11, 2021.
How do you write a molecular configuration?
Just as we write electron configurations for atoms, we can write the molecular electronic configuration by listing the orbitals with superscripts indicating the number of electrons present. For clarity, we place parentheses around molecular orbitals with the same energy.
What is a simple molecular structure?
Simple molecular structures have covalent bonds joining the atoms together, but intermolecular forces that act between neighbouring molecules. They have low melting and boiling points as there are only weak intermolecular forces acting between the molecules.
What are 3 examples of molecules?
Here are examples of common molecules: H 2 O (water) N 2 (nitrogen) O 3 (ozone) CaO (calcium oxide) C 6 H 12 O 6 (glucose, a type of sugar) NaCl (table salt).
What are the three ways to draw hydrocarbon molecules?
Figure 2 shows three different ways to draw the same structure. Figure 2. The same structure can be represented three different ways: an expanded formula, a condensed formula, and a skeletal structure.
Is deoxyribose a DNA?
deoxyribose, also called d-2-deoxyribose, five-carbon sugar component of DNA (q.v.; deoxyribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the DNA polymer and binds to nitrogenous bases.
What is adenine DNA?
Adenine (A) is one of four chemical bases in DNA, with the other three being cytosine (C), guanine (G), and thymine (T). Within the DNA molecule, adenine bases located on one strand form chemical bonds with thymine bases on the opposite strand. The sequence of four DNA bases encodes the cell’s genetic instructions.
Why do you think deoxyribose named deoxyribose?
DNA’s sugar, deoxyribose, has five carbon atoms, which are connected to each other to form what looks like a ring. The sugar in DNA is called a deoxyribose because it doesn’t have a hydroxyl group at the 2′ position. Instead it just has a hydrogen.
How do you draw a helix?
To Draw a Helix Click Home tab Draw panel Helix. Find. Specify the center point for the base of the helix. Specify the base radius. Specify the top radius or press Enter to specify the same value as the base radius. Specify the height of the helix.
How do you draw traits?
As you learn how to draw a polished character, consider the following tips, exercises, and techniques. Use references. Start loose. Use simple shapes. Apply S-curves and C-curves. Use as few lines as possible. Don’t be afraid to exaggerate. Check anatomy with a skeleton sketch. Pay attention to the eyes.
How do you draw a spiral in PowerPoint?
How to Draw a Spiral in PowerPoint Step 1: Create the Arc. Click the Insert menu, select Shapes and then click the Arc icon. Step 2: Make the Arc a Semi-Circle. Step 1: Copy the Arc. Step 2: Position and Group the Arcs. Step 3: Copy the Grouped Arcs. Step 4: Finish the Spiral.
Does helicase need ATP?
There are DNA and RNA helicases. The process of breaking the hydrogen bonds between the nucleotide base pairs in double-stranded DNA requires energy. To break the bonds, helicases use the energy stored in a molecule called ATP, which serves as the energy currency of cells.
Where is topoisomerase located?
Topoisomerase is also found in the mitochondria of cells. The mitochondria generate ATP as well as playing a role in programmed cell death and aging. The mitochondrial DNA of animal cells is a circular, double-stranded DNA that requires the activity of topoisomerase to be replicated.
What is a replication bubble?
A replication bubble is an unwound and open region of a DNA helix where DNA replication occurs. Helicase unwinds only a small section of the DNA at a time in a place called the origin of replication. In eukaryotes, there are several origins of replication on each chromosome.
How many chains does DNA have?
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together (Figure 4-3).
What is guanine used for?
In the cosmetics industry, crystalline guanine is used as an additive to various products (e.g., shampoos), where it provides a pearly iridescent effect. It is also used in metallic paints and simulated pearls and plastics. It provides shimmering luster to eye shadow and nail polish.
Is DNA double helix?
Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
What is S and P mixing?
s-p mixing occurs when the s and p orbitals have similar energies. When a single p orbital contains a pair of electrons, the act of pairing the electrons raises the energy of the orbital. Thus the 2p orbitals for O, F, and Ne are higher in energy than the 2p orbitals for Li, Be, B, C, and N.
How do you know if something is simple molecular?
Simple molecular substances generally have low melting points and boiling points and are often liquids or gases at room temperature.
What are the 5 basic shapes of molecules?
Molecular Geometries. The VSEPR theory describes five main shapes of simple molecules: linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral.
