BIO 103 – Which of the following is true regarding chemical bonds

10 Jun BIO 103 – Which of the following is true regarding chemical bonds

Question
Question 1

Which of the following is true regarding chemical bonds?

A) Chemical bonds are physical linkage of two atoms

B) Chemical bonds are an unbreakable union of two atoms

C) Chemical bonds are the result of energy emitted by radioactive atoms

D) Chemical bonds are an energetic interaction, or relationship, that occurs between two atoms

Question 2

A new biological molecule has been found that is mostly hydrophobic in its structure. It will most likely be classified as a

A) Nucleic acid

B) Carbohydrate

C) Lipid

D) Protein

E) Polysaccharide

Question 3

A common theme in biology is that energy flows through biological systems while matter ________.

A) Stagnates

B) Flows

C) Cycles

D) Multiplies

Question 4

Consider some sugar dissolved in water. Which term best describes the water?

A) Solute

B) Solvent

C) Product

D) Reactant

E) None of the above

Question 5

A major biological source of oxygen, which many organisms require when they break down glucose, is actually a by-product of:

A) entropy

B) global warming

C) chemosynthesis

D) photosynthesis

E) cellular respiration

Question 6

Temperature is a measure of

A) The potential energy in a substance

B) How fast the molecules in a substance are moving

C) The energy lost from a substance to its surroundings

D) How much heat is being absorbed by a substance

E) All of the above

Question 7

What kind of bond holds two water molecules to each other?

A) Polar covalent bond

B) Hydrogen bond

C) Ionic bond

D) Non-polar covalent bond

E) None of the above

Question 8

What are the monomer ‘building blocks’ that make up proteins?

A) Glycerol molecules

B) Cholesterol molecules

C) Monosaccharides

D) Amino acids

E) Fatty acids

Question 9

Destruction of a proteins shape is called _____.

A) hydrolysis

B) denaturation

C) a dehydration reaction

D) hydrogenation

Question 10

Carbohydrates are not:

A) broken down by cellular respiration

B) made by producers

C) used by decomposers

D) made mostly of nitrogen and carbon

E) stored potential energy

Question 11

Complete the equation: monosaccharide + monosaccharide? _______ + water

A) disaccharide

B) polypeptide

C) polysaccharide

D) fat

Question 12

Each of the following items is a lip[id except

A) Phospholipid

B) Cholesterol

C) Cellulose

D) Steroid

E) Triglyceride

Question 13

What are the monomer ‘building blocks’ that make up proteins?

A) Monosaccharide

B) Glycerol molecules

C) Amino acids

D) Fatty acids

E) Cholesterol molecules

Question 14

If humans have 46 chromosomes in each of their body cells, which of the following is NOT true?

A) Sperm cells have 23 chromosomes

B) Daughter cells from meiosis II have 46 chromosomes

C) Eggs cells have 23 chromosomes

D) Daughter cells from mitosis have 46 chromosomes

Question 15

The addition of the green fluorescent protein gene from a jellyfish to the genome of the zebra fish in order to produce a fluorescent green colored fish is an example of what?

A) genetic engineering

B) genetic drift

C) evolution

D) selective breeding

Question 16

A point mutation replaces the third base with the guanine in the following DNA sequence: AGCTTGTTAACCGTAGGT (does require access to Genetic Code table). What will happen to the amino acid sequence that is formed based on the mutated DNA sequence?

A) The first mRNA codon will change from serine to asparagine

B) All the amino acids will change

C) All amino acids will remain the same

D) The fist amino acid will change from serine to tryptophan

E) The first amino acid will change from asparagine to serine

Question 17

If one DNA strand has 66% adenine the complementary strand must have

A) 34% thymine

B) 66% thymine

C) guanine

D) 66% uracil

E) 34% uracil