Topic 1 - Cells, Tissues, Organs & Systems

Question 1

The early stages of growth: from conception to the eighth week of pregnancy.

Answer 1

Embryo

Question 2

In human development, the term used for two months after conception to birth.

Answer 2

Fetus

Question 3

A fertilized egg

Answer 3

Zygote

Question 4

The basic structural and functional units of the body

Answer 4

Cell

Question 5

The suffix that means “cell”

Answer 5

-cyte

Question 6

A group of similar cells

Answer 6

Tissue(s)

Question 7

A complex structure consisting of several tissue types

Answer 7

Organ(s)

Question 8

A group of organs that share a common purpose

Answer 8

System(s)

Question 9

The tendency of a living organism to keep the conditions inside it (the internal environment) similar, despite any changes in the conditions around it

Answer 9

Homeostasis

Question 10

A prefix that means “similar to”

Answer 10

Homeo-

Question 11

The system of glands, each of which secretes different types of hormones

Answer 11

Endocrine

Question 12

A substance released from glands into the bloodstream where they travel to target tissue and generate a response

Answer 12

Hormone(s)

Question 13

A small, pea shaped gland in the brain that produces and regulates some hormones, including melatonin

Answer 13

Pineal gland

Question 14

A hormone best known for the role it plays in circadian rhythms, including sleep patterns

Answer 14

Melatonin

Question 15

Also known as “daily cycles”, including sleep patterns

Latin for “around day”

Answer 15

Circadian rhythms

Question 16

One of the four basic types of tissues. An avascular tissue that provides a covering for most of the external surfaces of the body

Answer 16

Epithelium/Epithelial

Question 17

Prefix meaning above, on, over, nearby, upon, outer

Answer 17

Epi-

Question 18

Without blood vessels

Answer 18

Avascular

Question 19

One of the four basic types of tissues. Tissue that brings about movement in various parts of the body.

Answer 19

Muscle tissue

Question 20

When tissue shortens to bring about movement in various parts of the body

Answer 20

Contract (verb)

Question 21

Another term for a muscle cell, due to it being long and thin

Answer 21

Muscle fibre

Question 22

Aka nerve cell

Cells that conduct electrical signals

Answer 22

Neuron

Question 23

Cells that support neurons

Latin for glue

Answer 23

Glia

Question 24

One of the four basic types of tissues. A tissue that is made up of neurons and glia.

Answer 24

Nervous tissue

Question 25

Aka electrical signals

Answer 25

Action potential(s)

Question 26

One of the four basic types of tissues. A large category of tissues that includes bone, cartilage and blood.

Distinguishing feature: a large amount of nonliving intercellular (extra cellular) substances

Answer 26

Connective tissue

Question 27

Non-living intercellular substances, I.e. extra cellular substances

Answer 27

Matrix