Levels of Organization/Maintenance of Life** Flashcards Preview

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Flashcards in Levels of Organization/Maintenance of Life** Deck (25)
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1

The branch of science that deals with the structure of body parts, their forms, and how they are organized

anatomy

2

concerns the functions of body parts, what they do and how they do it

physiology

3

microscopic particles

atoms

4

A particle made up of 2 or more atoms

molecules

5

particles formed by molecules combining in a complex way

macromolecules

6

basic unit of structure and function

cell

7

composed of aggregates of macromolecules; carry out certain activities

organelles

8

cells that are organized into layers or other structures that have a common function

tissues

9

complex structures with specialized functions; formed by groups of tissues that interact

organ

10

a group of organs that function closely together

organ system

11

a living thing, organ systems make up this

organism

12

all of the chemical reactions in cells that break down or build up substances

metabolism

13

the condition of a stable internal environment

homeostasis

14

the fluid surrounding body cells

internal environment

15

maintains homeostasis though a number of self regulating control system

homeostatic mechanisms

16

provide information about specific conditions in the internal environment

receptors

17

tells what a particular value should be

set point

18

cause responses that alter conditions in the internal environment

effectors

19

cell specialization

differentiation

20

fluid outside cells

extracellular fluid

21

fluid in cells

intracellular fluid

22

a hormone secreting cell

interstitial

23

study of the structure and function of tissues

histology

24

process by which changes cause additional similar changes, producing unstable condition

positive feedback

25

mechanism activated by an imbalance that corrects the imbalance

negative feedback