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Flashcards in Test 1 Deck (137)
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1

characteristics of living things

highly organized
metabolism/energy use
homeostasis
sensation/response
reproduction/development
adaptation

2

order of living things

subatomic particle -> atoms -> molecules -> organelles -> cell -> tissue -> organ -> organ system -> organism -> population -> community -> ecosystem -> biosphere

3

photosynthesis equation

light + H20 + CO2 -> O2 + glucose
LEAVES

4

cellular respiration equation

O2 + glucose -> CO2 + H2O + energy (ATP)

5

homeostasis

maintaining relationship between inside and outside (staying the same)

6

chemoreceptors

detect toxins
response= taxis/chemotaxis (increases welfare by moving in opposite direction)

7

adaptation

ability to change in response to environment (long term or short term)

8

short term adaptation

behavioral response:
genetic variation
natural selection
takes time

9

long term adaptation

extinction or evolution (Grand Unifying Theory--GUT)

10

autotroph

feeds itself

11

heterotroph

feeds by eating other things

12

structures plant cells have

cell wall and cell membrane

13

structures plant cells don't have

nervous system, endocrine system, and excretory system

14

protoplast

membrane and its contents

15

rough ER

ribosomes attached
proteins formed here
everything made against a membrane

16

smooth ER

lipids made here
everything made against a membrane

17

mitochondria

powerhouse of cell (make ATP/energy)

18

where are mitochondria most prevalent

animals: muscle cells
plants: where things are made

19

semi-autonomous (mitochondria)

have their own DNA so they control their own replication
have bacterial ribosomes so they can control their own protein synthesis

20

endosymbiont theory

larger bacteria engulfed smaller bacteria and kept it

21

3 kinds of plastids

chloroplast
chromoplast
leukoplast

22

chloroplast

semi-autonomous:
more conservative
for the most part they replicate themselves
thylakoid found here

23

thylakoid

contain pigments of photosynthesis

24

photosystem

200-300 pigments working together
energy sent inward

25

chlorophyll A

one in the middle
bright green

26

accessory pigments

surround chlorophyll A

27

chlorophyll B

dark green

28

carotenoids

yellow, orange, or red

29

chromoplast

have inner membrane and no outer membrane
only have carotenoids (Y, O, R)
appear when chloroplast lose chlorophyll and accessory pigments

30

leukoplast

no internal structure and no pigments
involved in synthesis of starch (amyloplasts)