Question 1

Fructose and glucose are

Accepted Answer

A)  isotopes. 
B)  monosaccharides. 
C)  disaccharides. 
D)  six-carbon sugars. 
E)  monosaccharides and six-carbon sugars. 
A)  isotopes. 
B)  monosaccharides. 
C)  disaccharides. 
D)  six-carbon sugars. 
E)  monosaccharides and six-carbon sugars.

Question 2

Each carbon atom can share pairs of electrons with as many as ____ other atoms.

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  5 
E)  6 
A)  2 
B)  3 
C)  4 
D)  5 
E)  6

Question 3

A positive effect associated with pesticide usage does not include

Accepted Answer

A)  killing disease-causing insects. 
B)  killing some pathogens. 
C)  increasing food supplies. 
D)  increasing profits for farmers. 
E)  causing cancer. 
A)  killing disease-causing insects. 
B)  killing some pathogens. 
C)  increasing food supplies. 
D)  increasing profits for farmers. 
E)  causing cancer.

Question 4

Match between columns
                        Premises: Two molecules covalently bond into another one.
One or more electrons from one molecule are donated to another molecule.
Moving internal bonds converts one type of organic compound to another.
One molecule gives up a functional group, and a different molecule immediately accepts it.
A molecule splits into two smaller ones.

Accepted Answer

The Answer of Electron transfer and Functional group transfer and is...

Question 5

The many oxidation reactions that take place in our bodies cause the formation of

Accepted Answer

A)  free radicals. 
B)  antioxidants. 
C)  covalent molecules. 
D)  ionic molecules. 
E)  hydrogen bonds. 
A)  free radicals. 
B)  antioxidants. 
C)  covalent molecules. 
D)  ionic molecules. 
E)  hydrogen bonds.

Question 6

Selecting the Exception Four of the five answers below are related as members of the same group. Select the exception.

Accepted Answer

A)  lactose 
B)  maltose 
C)  sucrose 
D)  table sugar 
E)  glucose 
A)  lactose 
B)  maltose 
C)  sucrose 
D)  table sugar 
E)  glucose

Question 7

Selecting the Exception Four of the five answers listed below are amino acids. Select the exception.

Accepted Answer

A)  tryptophan 
B)  valine 
C)  alanine 
D)  adenine 
E)  leucine 
A)  tryptophan 
B)  valine 
C)  alanine 
D)  adenine 
E)  leucine

Question 8

Fluid inside most human cells is about

Accepted Answer

A)  pH 7. 
B)  pH 9. 
C)  pH 4. 
D)  pH 11. 
E)  pH 2. 
A)  pH 7. 
B)  pH 9. 
C)  pH 4. 
D)  pH 11. 
E)  pH 2.

Question 9

Transmutation of an element (the change of an element into a different element) occurs due to

Accepted Answer

A)  exposure to strong sunlight. 
B)  exposure to certain chemicals. 
C)  natural aging of the element. 
D)  combining with another element. 
E)  radioactive decay. 
A)  exposure to strong sunlight. 
B)  exposure to certain chemicals. 
C)  natural aging of the element. 
D)  combining with another element. 
E)  radioactive decay.

Question 10

The time it takes for half of a quantity of a radioisotope to decay into a more stable isotope is

Accepted Answer

A)  the same for all elements. 
B)  decay time. 
C)  half-life. 
D)  disintegration time. 
E)  dependent on temperature. 
A)  the same for all elements. 
B)  decay time. 
C)  half-life. 
D)  disintegration time. 
E)  dependent on temperature.

Question 11

Which of the following is NOT found in every nucleic acid?

Accepted Answer

A)  ribose 
B)  phosphate group 
C)  purine 
D)  pyrimidine 
E)  uracil 
A)  ribose 
B)  phosphate group 
C)  purine 
D)  pyrimidine 
E)  uracil

Question 12

A free radical will "steal" what particle from a stable molecule?

Accepted Answer

A)  a proton 
B)  a neutron 
C)  an atom 
D)  an electron 
E)  a positron 
A)  a proton 
B)  a neutron 
C)  an atom 
D)  an electron 
E)  a positron

Question 13

Which is the most common protein in the body?

Accepted Answer

A)  muscle 
B)  collagen 
C)  hemoglobin 
D)  bone matrix 
E)  insulin 
A)  muscle 
B)  collagen 
C)  hemoglobin 
D)  bone matrix 
E)  insulin

Question 14

Plants store a large amount of glucose in the form of

Accepted Answer

A)  starch. 
B)  glycogen. 
C)  glucose. 
D)  cellulose. 
E)  fats. 
A)  starch. 
B)  glycogen. 
C)  glucose. 
D)  cellulose. 
E)  fats.

Question 15

The insertion of water (H+ and OH - ) into an enzymatically split molecule is

Accepted Answer

A)  hydrolysis. 
B)  dehydration synthesis. 
C)  condensation. 
D)  cleavage. 
E)  polymerization. 
A)  hydrolysis. 
B)  dehydration synthesis. 
C)  condensation. 
D)  cleavage. 
E)  polymerization.

Question 16

A reaction of a strong acid and a strong base will produce water and

Accepted Answer

A)  a buffer. 
B)  a salt. 
C)  gas. 
D)  solid precipitate. 
E)  solute. 
A)  a buffer. 
B)  a salt. 
C)  gas. 
D)  solid precipitate. 
E)  solute.

Question 17

Which is the main material of cell membranes?

Accepted Answer

A)  lipids 
B)  proteins 
C)  phospholipids 
D)  triglycerides 
E)  fatty acids 
A)  lipids 
B)  proteins 
C)  phospholipids 
D)  triglycerides 
E)  fatty acids

Question 18

Natural sources of antioxidants do not include
A) vitamin C.
B) vitamin E.
C) orange vegetables.
D) green leafy vegetables.
E) O2-.

Accepted Answer

Question 19

Examples of isotopes include:

Accepted Answer

A)  oxygen 8 and oxygen 16. 
B)  carbon 12 and nitrogen 14. 
C)  hydrogen 1 and helium 1. 
D)  sodium 23 and potassium 23. 
E)  carbon 12 and carbon 14. 
A)  oxygen 8 and oxygen 16. 
B)  carbon 12 and nitrogen 14. 
C)  hydrogen 1 and helium 1. 
D)  sodium 23 and potassium 23. 
E)  carbon 12 and carbon 14.

Question 20

The bonding of two or more atoms creates a(n)

Accepted Answer

A)  ion. 
B)  molecule. 
C)  mixture. 
D)  suspension. 
E)  particle. 
A)  ion. 
B)  molecule. 
C)  mixture. 
D)  suspension. 
E)  particle.

Exam 2: Chemistry of Life

Fructose and glucose are

Each carbon atom can share pairs of electrons with as many as ____ other atoms.

A positive effect associated with pesticide usage does not include

The many oxidation reactions that take place in our bodies cause the formation of

Selecting the Exception Four of the five answers below are related as members of the same group. Select the exception.

Selecting the Exception Four of the five answers listed below are amino acids. Select the exception.

Fluid inside most human cells is about

Transmutation of an element (the change of an element into a different element) occurs due to

The time it takes for half of a quantity of a radioisotope to decay into a more stable isotope is

Which of the following is NOT found in every nucleic acid?

A free radical will "steal" what particle from a stable molecule?

Which is the most common protein in the body?

Plants store a large amount of glucose in the form of

The insertion of water (H+ and OH - ) into an enzymatically split molecule is

A reaction of a strong acid and a strong base will produce water and

Which is the main material of cell membranes?

Natural sources of antioxidants do not include A) vitamin C. B) vitamin E. C) orange vegetables. D) green leafy vegetables. E) O2-.

Examples of isotopes include:

The bonding of two or more atoms creates a(n)

Learning About Human Biology

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

Filters

The insertion of water (H⁺ and OH^-) into an enzymatically split molecule is

Natural sources of antioxidants do not include A) vitamin C. B) vitamin E. C) orange vegetables. D) green leafy vegetables. E) O₂^-.