Living Matter

Question 1

Atoms

Answer 1

consist of subatomic particles that all substances are composed of.

Question 2

Molecule

Answer 2

is a group of two or more atoms held together by a chemical bond and arranged in particular patterns to chemical compounds.

Question 3

Cells

Answer 3

are basic functional units of a living matter.

Question 4

Tissues

Answer 4

are collections of similar cells that carry out specific bodily functions.

Question 5

Organs

Answer 5

are a combinations of tissues and cells that form a complex structure to perform a certain function within the system.

Question 6

Organ system

Answer 6

is several organs working together to perform a bodily function.

Question 7

Protoplasm

Answer 7

is a colorless, jelly-like substance in which food elements, such as protein, fats, carbohydrates, mineral, salts, and water, are present.

Question 8

Cytoplasm

Answer 8

is all of the substance within the cell wall other than the nucleus.

Question 9

Nucleus

Answer 9

is the main central body of living cells that contains the genetic information for continuing life.

Question 10

Cell membrane or plasma membrane

Answer 10

permits soluble substances to enter and leave to protoplasm.

Question 11

Cytoplasmic organelles

Answer 11

discrete structures within a cell, having specialized functions, identifying molecular structures, and having a distinctive chemical composition.

Question 12

Differentation

Answer 12

is the repeated division of the ovum during early developmental stages, resulting in specialized cells that differ from one another.

Question 13

Mitosis

Answer 13

is the process of cell division in which a cell divides into two cells identical to the parent cell.

Question 14

Meiosis

Answer 14

is cell division that takes place in the sex organs of animals to produce the egg and sperm required doe fertilization. Cells that result from meiosis have only one one-half the number of hereditary chromosomes as the parent cell.

Question 15

Anabolism

Answer 15

is the process of building up larger molecules from smaller ones.

Question 16

Catabolism

Answer 16

is the breaking down of larger substances into smaller ones.

Question 17

Enzymes

Answer 17

are proteins that act as catalysts for chemical reactions in metabolism while remaining unchanged themselves.

Question 18

Adenosine Triphosphate (ATP)

Answer 18

molecule that stores energy in the body and releases it when it breaks down into adenosine diphosphate (ADP).