What does the number after an atoms name signify?
What does the number after an atom's name signify? It signifies the number of Protons in the atom.
What kind of reaction is used for building disaccharides and polysaccharides fats and proteins?
The dehydration reaction is used for building disaccharides, polysaccharides, fats, and proteins. The hydrolysis reaction is able to break these substances down.
What part of the atom determines the name of the atom?
Explanation: The identity of the element is determined by the number of protons, which are positively charged, massive nuclear particles. The number of protons in a nucleus is given by Z , the atomic number.
What determines the atomic number of an atom?
The number of protons in a nucleus is called the atomic number and always equals the number of electrons in orbit about that nucleus (in a nonionized atom). Thus, all atoms that have the same number of protons–the atomic number–are atoms of the same element.
What are the different forms ie monomers polymers of carbohydrates lipids and proteins?
As we've learned, there are four major classes of biological macromolecules:
- Proteins (polymers of amino acids)
- Carbohydrates (polymers of sugars)
- Lipids (polymers of lipid monomers)
- Nucleic acids (DNA and RNA; polymers of nucleotides)
What is the process by which cells link monomers together to form polymers?
The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts. This type of reaction is dehydration synthesis, which means “to put together while losing water.”
What determines the identity of an atom quizlet?
The identity of the atom is determined by the number of protons; an atom with five protons has different properties than an atom with six protons. small mass. We use a very small unit of mass to measure them, and this unit is called an atomic mass unit (amu).
How does the structure of an atom determine its properties?
The number of electrons, in turn, determines the chemical properties of the atom. Protons contribute to the mass of an atom and provide the positive charge to the nucleus. The number of protons also determines the identity of the element. Electrons have a negative charge.
Where do you find the majority of the volume of an atom?
The nucleus is the atom's central core and contains more than 99.9 percent of its mass. Surrounding the nucleus is a cloud of electrons, which makes up most of the atom's volume.
What determines the atomic number of an atom quizlet?
Step 1. The atomic number of an atom is determined by the number of protons.
How are the chemical properties of lipids nucleic acids and proteins differ from carbohydrates?
In addition to those elements, proteins contain nitrogen and sulfur, and nucleic acids contain nitrogen and phosphorous. Carbohydrates share the C, H, and O composition as lipids, but they differ in structure.
How do the structures of biological macromolecules determine their properties and functions?
Structure is determined by several factors The structure (and hence function) of macromolecules is governed by foundational principles of chemistry such as: covalent bonds and polarity, bond rotations and vibrations, non-covalent interactions, the hydrophobic effect and dynamic aspects of molecular structure.
How do partially hydrogenated vegetable oils differ from unmodified vegetable oils?
How do "partially hydrogenated vegetable oils" differ from unmodified vegetable oils? they contain fewer double bonds. Unfortunately, unhealthy trans fats can be produced by this process.
How do molecules become polymers and how are polymers broken down relate this back to dehydration and hydrolysis reactions?
When polymers are broken down into smaller units (monomers), a molecule of water is used for each bond broken by these reactions; such reactions are known as hydrolysis reactions. Dehydration and hydrolysis reactions are similar for all macromolecules, but each monomer and polymer reaction is specific to its class.
What determines identity of an element?
Correct answer: The identity of an element is determined by the number of protons. One cannot alter the number of protons without altering the identity of the element. By adding a proton, the atomic number increases by one and the element identity changes. Number of neutrons can be altered to create isotopes.
What characteristic determines the chemical properties of an element?
The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
Which is a characteristic of atoms?
Atoms are the smallest fraction of an element that can exist, and still show the characteristics of the element. Atoms themselves are composed essentially of electrons (1 negative charge), protons (1 positive charge), and neutrons (no charge).
What determines an atom’s identity and chemical properties?
Explanation: The number of electrons, in turn, determines the chemical properties of the atom. Protons contribute to the mass of an atom and provide the positive charge to the nucleus. The number of protons also determines the identity of the element.
What makes up most of the volume of an atom quizlet?
What takes up most of the volume of an atom? The volume of an atom is made up from the electrons.
What mostly makes up an atom?
It is composed of protons, which have a positive charge, and neutrons, which have no charge. Protons, neutrons, and the electrons surrounding them are long-lived particles present in all ordinary, naturally occurring atoms.
What determines the mass of an atom quizlet?
How do you determine the Mass Number of an atom? Total number of Protons PLUS Neutrons.
What characteristic differences in molecular structure distinguish lipids and carbohydrates?
Structurally, carbohydrates are polymers that exist in different forms such as monosaccharides, disaccharides and polysaccharides. On the other hand, lipid is a nonpolymeric molecule that constitutes a glycerol molecule and three fatty acid chains.
What makes lipids structurally different from proteins carbohydrates and nucleic acids quizlet?
What makes lipids structurally different from proteins, carbohydrates, and nucleic acids? They are not a polymer.
What determines the function of a biological molecule?
The Three-Dimensional Structure of Biological Macromolecules Determines How They Function. It is the three-dimensional shape of proteins and nucleic acids that endows them with their biological activities.
What determines the function of an organic molecule?
How are the building blocks of organic molecules like bricks? The last common characteristic of all organic molecules is that their form determines their function. That means that their shape determines how they will behave and how they will react with other molecules.
What do fats steroids and waxes have in common?
What do fats, steroids, and waxes have in common? Low solubility in water.
Is shortening edible?
Regardless, shortening is still highly processed and is typically used only to make fried foods or pastries that are high in added fat and sugar. Therefore, while it's OK to enjoy an occasional treat containing shortening, it's a good idea to limit your use of shortening overall.
What is a chemical reaction called that builds new and larger molecules from smaller starting molecules?
Endergonic reactions in organisms are called anabolic reactions. These reactions absorb energy and build bigger molecules from smaller ones. An example of an anabolic reaction is the joining of amino acids to form a protein.
How are dehydration synthesis and hydrolysis opposites of each other be sure that your answer includes the mention of h2o?
Hydrolysis reactions use water to breakdown polymers into monomers and is the opposite of dehydration synthesis, which forms water when synthesizing a polymer from monomers. Hydrolysis reactions break bonds and release energy.
What is the most important thing in determining the identity of an atom?
1 Answer. The proton determines the identity of an element.