plants + ecosystems

Question 1

word equation for photosynthesis

Answer 1

carbon dioxide + water + light energy –> glucose + oxygen

Question 2

most MRS GREN processes require energy. where does this come from?

Answer 2

sun

Question 3

plants take light energy in and turn it into ________ energy

Answer 3

chemical

Question 4

shoot system consists of

Answer 4

flower
leaf
fruit
stem

Question 5

root system consists of

Answer 5

root

Question 6

what does the flower contribute to the plant

Answer 6

helps in reproduction

Question 7

what does the leaf contribute to the plant

Answer 7

performs photosynthesis

Question 8

what does the fruit contribute to the plant

Answer 8

contains seeds

Question 9

what does the stem contribute to the plant

Answer 9

supports plant

Question 10

what does the root contribute to the plant

Answer 10

absorbs water + minerals

Question 11

most plants are ______ water by mass

Answer 11

80%

Question 12

trees are _____ water by mass

Answer 12

50%

Question 13

the dry part of a plant usually consists of

Answer 13

45% carbon
45% oxygen
6% hydrogen
4% other

Question 14

carbon comes from…
oxygen comes from…
hydrogen comes from…
other elements comes from…

Answer 14

CO2 in air
CO2 in air
water in soil
nutrients in soil

Question 15

word equation for aerobic respiration

Answer 15

glucose + oxygen –> carbon dioxide + water

Question 16

chemical equation for aerobic respiration

Answer 16

C6H12O6 + 6O2 –> 6CO2 + 6H2O

Question 17

word equation for anaerobic respiration in plants (and yeast)

Answer 17

glucose –> ethanol + carbon dioxide + energy

Question 18

chemical equation for anaerobic respiration in plants

Answer 18

C6H12O6 –> 2C2H5OH + 2CO2 + energy

Question 19

how is energy lost in a food chain

Answer 19

heat
excreted waste

Question 20

male stamen are

Answer 20

(male reproductive organ of a plant)
anther
filament

Question 21

female carpel are

Answer 21

(female reproductive organ of a plant)
stigma
style
ovary

Question 22

parts of the plant not involved in sexual reproduction are

Answer 22

petal
sepal

Question 23

anthers are like the __________
they make ________, similar to __________

Answer 23

testes in a mammal
pollen
how testes make sperm

Question 24

if some of the anther’s ________ (it has to be the same species or reproduction won’t happen) lands on the _______, a ________ is created down the ________ and into the ________. here, the ________ meets the ___________

Answer 24

pollen
stigma
pollen tube
style
ovary
pollen
ovule (similar to eggs in humans)

Question 25

the process when the nucleus of the pollen and the nucleus of the ovule fuse together is called

Answer 25

fertilisation