QQ2a_2361cell-chemical_basis_of_cells (Molecules of Life)

Question 1

The molecule which is the most abundant substance in living matter (by mass) is

Answer 1

Water

Question 2

What element forms the ‘backbone’ or basis of all organic molecules

Answer 2

Carbon

Question 3

Organic molecules composed of 1 part carbon to 2 parts hydrogen to one part oxygen are

Answer 3

Carbohydrates

Question 4

Glyceraldehyde-3-phosphate which is the initial product of photosynthesis is a modified

Answer 4

triose

Question 5

The structural polysaccharide that is the main part of plant cell walls is

Answer 5

Cellulose

Question 6

Triglyceride-type lipids are important for

Answer 6

Energy storage

Question 7

Cell membranes are composed of

Answer 7

Phospholipids

Question 8

proteins that enable specific chemical reactions in a metabolic pathway and are therefore collectively responsible for all of a cell’s metabolism and for all of the substances a cell can create are

Answer 8

Enzymes

Question 9

The nucleotide that functions as the cell’s immediate energy supplier is

Answer 9

ATP

Question 10

DNA

Answer 10

contains a cell’s genetic material which is a code for all of the cell’s possible protiens

is a polymer of nucleotides

is one of 2 types of nucleic acids

all of these options are true.(correct)

Question 11

Morphine, cocaine, nicotine are all

Answer 11

Alkoids

Question 12

The viceroy butterfly scares off would be bird predators because it resembles the monarch butterfly which is toxic because its caterpillars fed on poisonous plants that contained ___.

Answer 12

Cardiac glycoside terpenoids

Question 13

Active compounds in marijuana include

Answer 13

All of the above

Question 14

Phenolic compounds that are critical for much of plant life because they strengthen wood and other plant support tissues are ___.

Answer 14

Lignins