A. They all have actually an infinish valence electron shell. B. They all have actually the exact same variety of protons in their nuclei. C. They are all mostly unreenergetic facets. D. They all have the same variety of electrons in their first electron shell.
You are watching: The basic structural material of the body consists of ________.
Which of the adhering to accurately explains what is developing in the shown reaction?
A. A single covalent bond is developed between carbon and also each of the 4 hydrogen atoms. B. A hydrogen bond is developed in between carbon and also the four hydrogen atoms. C. A quadruple covalent bond is formed in between carbon and also one hydrogen atom. D. An ionic bond is formed between carbon and the four hydrogen atoms.
What explains the negative charge on the oxygen atom within the water molecule?
A. Protons are transferred from oxygen to hydrogen in the time of the development of an ionic bond. B. Oxygen atoms have actually a more powerful pull on the electrons common within a covalent bond formed between oxygen and hydrogen. C. Hydrogen atoms have a stronger pull on the electrons common within a covalent bond created between oxygen and also hydrogen. D. Electrons are moved from hydrogen to oxygen throughout the formation of an ionic bond.
B. Oxygen atoms have actually a more powerful pull on the electrons shared within a covalent bond developed in between oxygen and hydrogen.
What is the classification of a solution with a pH of 8.3?A. buffered solution B. alkaline solution C. neutral solution D. acidic solution
All amino acids (such as the 4 represented in the figure) contain ______.
A. phosphorous and nitrogen B. a nitrogen-containing base and a pentose sugar C. an amine group and also a carboxyl group D. an amine team and a fatty acid
Which of the complying with statements is true concerning the enzyme-catalyzed reactivity (B) compared to the uncatalyzed reactivity (A)?
A. The reactivity in the existence of enzyme releases more energy. B. The commodities of the reactivity via enzyme contain more chemical potential energy. C. The reactivity in the existence of enzyme will certainly develop larger assets. D. Less power input is compelled to start the reactivity in the presence of enzyme. E. All of the detailed responses are true.
Which organic molecules create the significant structural materials of the body?A. nucleic acids B. lipids C. carbohydprices D. proteins
Foods are broken dvery own into their building blocks by including water. This would certainly be an example of which characteristic of water?A. Water acts as a lubricant.B. Water acts as a reactant.C. Water acts as a cushion.D. Water has actually a high warmth of vaporization.
Water acts to disfix molecules in the body. How does water disdeal with the salt (NaCl) in your mouth from a salty pretzel?A. Water acts as a cofactor for enzymes that dissettle the salt.B. When water is added to the NaCl, NaCl is broken dvery own by adding OH- to one facet and also H+ to the other. This is well-known as hydrolysis.C. Water acts as a solvent because the partial negative charge on the oxygen in water attracts sodium, while the partial positive charge on hydrogen attracts chloride. This outcomes in the separation of sodium from chloride, therefore breaking the ionic bond.
C. Water acts as a solvent bereason the partial negative charge on the oxygen in water attracts sodium, while the partial positive charge on hydrogen attracts chloride. This results in the separation of sodium from chloride, therefore breaking the ionic bond.
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In plasma, a typical body fluid, protein floating approximately would be considered to be which of the following?A. a solute, especially both a colloid and an electrolyteB. a solventC. a solute, particularly both a colloid and a nonelectrolyte
Electrolytes are charged particles called ions that are dissolved in body fluids. Which of the complying with ions would be thought about a major anion in the body?A. potassiumB. chlorideC. calciumD. sodium
The 3 atoms presented represent different ______.
A. cells B. elements C. molecules D. isotopes
Which of the adhering to is formed once the ions in the salt crystal have entirely dissociated from one another?
A. a solution B. a buffer C. a suspension D. a colloid