CH 6 Definitions

Question 1

Define Organism

Answer 1

A living system with parts that work together to carry out the processes of life

Question 2

Define Unicellular Organism

Answer 2

An organism made up of only one cell

Question 3

Define Multicellular

Answer 3

An organism that is made up of more than one cell

Question 4

Define Vertebrate

Answer 4

An animal with a backbone

Question 5

Define Invertebrate

Answer 5

An animal without a backbone

Question 6

Define Fungi

Answer 6

Organisms that usually obtain nutrients from dead or decaying matter and cannot carry out photosynthesis; nutrients are usually absorbed

Question 7

Define Protist

Answer 7

An organism that is neither plant nor animal, but shares many of the same characteristics of both; usually unicellular, but can be multicellular

Question 8

Define Bacteria

Answer 8

The most basic of all unicellular organisms; lacks a nucleus

Question 9

Define Movement

Answer 9

A change in the shape or figure of all or part of an organism; a characteristic of all living things

Question 10

Define Locomotion

Answer 10

Movement that takes an object from one place in its environment to another; a characteristics of animals, animal-like protists, and some bacteria, but not plants or fungi

Question 11

Define Cellular Differentiation

Answer 11

The process by which a cell becomes specialized to perform a specific function

Question 12

Define Tissue

Answer 12

A group of differentiated cells that work together to perform a specific function

Question 13

Define Organ

Answer 13

Two or more tissues that work together to perform one or more functions

Question 14

Define Organ System

Answer 14

A group of organs that work together to perform related functions

Question 15

Define Xylem Vessels

Answer 15

A system of tubes in a plant that transports water and minerals from the roots to the shoots and leaves

Question 16

Define Phloem Vessels

Answer 16

A system of tubes in a plant that transports nutrients (such as dissolved sugars) from the leaves to the rest of a plant

Question 17

Define Lichens

Answer 17

Lichens are organisms that form from the interaction of a fungus with an alga.

Question 18

Define Paramecia

Answer 18

Paramecia are unicellular organisms that are found in aquatic environments.

Question 19

Define Amoeba

Answer 19

The amoeba is another animal-like protist that must move about to find food.

Question 20

Define Stomates

Answer 20

Stomates are microscopic pores that control the movement of gases and water vapour into and out of the plant.