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TEAS Biology and Chemistry
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Biology and Chemisty
Terms in this set (36)
The chemical bonds present within a molecule of C02?
Which of the following is an Ionic compound
What is a nonpolar covalent bond?
Nonpolar covalent bonds are a type of bond that occurs when two atoms share a pair of electrons with each other. These shared electrons glue two or more atoms together to form a molecule. ... An example of a nonpolar covalent bond is the bond between two hydrogen atoms because they equally share the electrons.
Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. It is one of the main types of bonding along with Covalent bonding and Metallic bonding. Ions are atoms with an electrostatic charge
CaCl2 Chemical and Metal combined
Which of the following is insoluble in water?
C10H22 C10H22 is usually soluable. However, H22 can make it insoluble.
How many neutrons are present in the carbon-14 isotope
8 Neutrons. 6 protons + 8 neutrons.
The intrinsic bonds present between atoms in a molecule of H2O?
Polar covalent bonding is a type of chemical bond where a pair of electrons is unequally shared between two atoms. In a polar covalent bond, the electrons are not equally shared because one atom spends more time with the electrons than the other atom.
Water is an example of a molecule with polar cavalent bonding.
Oxidized vs Reduction.
Reduction is the gain of electrons.
Oxidation is the loss of electrons.
These agents make things happen.
The majority of metals tend to be
oxidized thereby losing electrons and becoming cation.
When an atom losses one or more atoms, it becomes a positively charged ion.
This is know as a cations.
When an atom gains an electron, it becomes a negatively charged ion.
This is known as an Anion.
Which of the following inorganic elements is a key component within erythrocytes that facilitate binding of oxygen for aerobic respiration?
Fe2+ Which is a form of iron.
When comparing H20 to other molecules similar to it like hydrogen sulfide, H2S, or Hyrogen selenide, H2Se, you notice that water has higher boiling point than the other molecule. Which of the following components accounts for this observation?
What is the molecule that results when Na+ combines with P04-3?
A measure of the ability of an atom in a chemical compound to attract electrons
Cations = Loosing electrons
Anions = Gain electrons
a covalent bond in which electrons are shared equally
A chemical bond that involves sharing a pair of electrons between atoms in a molecule
A chemical bond resulting from the attraction between oppositely charged ions.
States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
Which of the following is true regarding subcellular ribosomes
The three-nucleotide sequence on mRNA is translated into one amino acid at the ribosomes with the action of tRNA
Multi-subunit proteins, like immunoglobins, are processed and packed for leaving the cell directly from the
A subcellular organelle that contains hypochlorous acid, which is bleach, and digestive enzymes and is responsible for degrading cellular macromolecules and invading bacteria is
Which of the following components is responsible for bacterial motility?
Which of the following correctly describes the membrane enclosing an animal cell nucleus and mitochondria?
Phospholipid bilayer containing proteins
Which of the following is the correct progression of protein synthesis?
DNA is transcribed into mRNA which is then translated into protein
What is the mRNA transcript that produced the peptide chain: histidine-glycine-serine?
How to read a codone chart?
The answer has three letters to find the condone, so divide each answer into 3 distinct digits. Check the first column or base letter for direction. Then, the next column for direction. Then , the third for direction. They will all meet according to their letter coordination.
A couple comes into your clinic seeking genetic counseling before having children. The wife has a mild form of repressively inhered condition and, after further probing, you find that the husband is very likely carrier of the disease. What is the probability that their 1 st child will not be affected with the disease. 50% chance.
Mild for = phenotype rr. The father is likely to have it as well. Rr. Therefore, 50 percent is the correct answer
Ms. Wilson who is pregnant and believed to be a carrier of Tay-Sach's Disease, an autosomal recessive disease. She would like your professional opinion regarding the likelihood of her son being born with the disease. Genetic analysis of her disease-free husband shows that he is heterozygous for this disease. Which of the following should you tell her?
Your child has about a one quarter percent chance of inheriting the disease.
What is the purpose of nuclear envelope or nuclear pore in a cell?
The nuclear pore or nuclear envelope surrounds the nucleus with a double membrane with multiple pores. The pores regulate the passage of macromolecules like proteins and RNA, but permit free passage of water, ions, ATP and other small molecules.
a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane. Benefits extracellular space, capillaries, venuoles,
A process in which a cell engulfs extracellular material through an inward folding of its plasma membrane.
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