Question 1

Selecting the Exception Which molecule is INCORRECTLY matched with its component part?

Accepted Answer

Starch is a polysaccharide composed of glucose molecules, not glycerol.

Question 2

Match between columns Premises: the basic unit of ribonucleic acid
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the monomeric unit of a polypeptide chain
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the basic unit of proteins
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the basic unit of glycogen
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the basic unit of starch
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the basic unit of deoxyribonucleic acid
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the basic unit of cellulose
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids the two units that combine in various ways to form lipids
a- amino acids
b- glucose
c- glycerol
d- fatty acids
e- nucleotide
f- amino acids and glucose
g- amino acids and glycerol
h- glucose and glycerol
i- glucose and fatty acids
j- glycerol and fatty acids

Accepted Answer

The Answer of choice B. and choice A and choice is...

Question 3

Match between columns
                        Premises: the bond that breaks when salts dissolve in water
the bond between the NaCl
the bond that holds organic molecules together
the bond in which electrons are shared
the bond that is easiest to break
the bond between the hydrogen atoms of molecular hydrogen
the bond between the two strands of DNA in a double helix

Accepted Answer

The Answer of covalent . and hydrogen and ionic and is...

Question 4

Selecting the Exception The following statements related to electrons are correct, EXCEPT one. Select the EXCEPTION.

Accepted Answer

Electrons can move within their orbitals and can also transition between different energy levels when they absorb or release energy.

Question 5

Deoxyribonucleic acid

Accepted Answer

Deoxyribonucleic acid (DNA) stores and retrieves heritable information in all cells. It is not one of the adenosine phosphates or nucleotide coenzymes, and it does not translate protein-building instructions into actual protein structure.

Question 6

Selecting the Exception Which of the following statements is INCORRECT about trans fats?

Accepted Answer

Trans fats actually increase the level of cholesterol in the blood, particularly LDL cholesterol, which is considered bad cholesterol.

Question 7

Selecting the Exception Which of the following would NOT strongly associated with the word "acid"?

Accepted Answer

Magnesium hydroxide is a base, not an acid, and is often used to neutralize acids.

Question 8

In what process do RNA molecules function?

Accepted Answer

RNA molecules function in protein synthesis by carrying genetic information from DNA to ribosomes, where proteins are made.

Question 9

What type of bonds hold the two chains of DNA together in a DNA molecule?

Accepted Answer

The two chains of DNA are held together by hydrogen bonds between the nitrogenous bases.

Question 10

Match between columns
                        Premises: number of electrons in the second energy level
number of electrons in the first energy level
number of electrons in the third energy level

Accepted Answer

The Answer of 8 and 3 and 5 and 1 is...

Question 11

Selecting the Exception Which of the following statements is INCORRECT?

Accepted Answer

Salts do not just precipitate out of solution and have no function in cells; they play crucial roles in cellular processes, including maintaining osmotic balance and serving as electrolytes.

Question 12

What guides the production of a multi-celled organism?

Accepted Answer

The sequence of nucleotide bases in DNA guides the production of a multi-celled organism through the process of gene expression. Gene expression involves the transcription of DNA into RNA and the translation of RNA into protein, which ultimately determines the phenotype (physical traits) of the organism.

Question 13

Match between columns Premises: solution that contains the same concentration of H⁺ ions as OH^- ions substance that can maintain the pH of a solution at a relatively constant level substance that releases hydrogen ions in solution measure of the concentration of hydrogen ions in a solution substance that accepts hydrogen ions in solution

Accepted Answer

The Answer of Buffer and pH and Neutral and Base is...

Question 14

Match between columns
                        Premises: isotope with an unstable nucleus.
total number of protons and neutrons in the nucleus of an atom.
number of protons in the atomic nucleus.
forms of an element that differ in the number of neutrons their atoms carry.
atoms with more or less electrons than protons.

Accepted Answer

The Answer of Isotopes and Mass number and Radioisotope and is...

Question 15

Selecting the Exception Denaturation of proteins will result in all EXCEPT one of the following. Which one is it?

Accepted Answer

Denaturation affects the protein's structure and function but does not remove R groups from amino acids.

Question 16

Selecting the Exception Which of the following is NOT true of hydrogen bonds?

Accepted Answer

Hydrogen bonds are actually quite common in macromolecules, such as proteins and nucleic acids, where they play a crucial role in maintaining structure and function.

Quiz 2: Molecules of Life