Module 15: Kingdom Plantae: Physiology and Classification

Question 1

name the four processes for which plants require water

Answer 1

photosynthesis
turgor pressure
hydrolysis
transport

Question 2

do xylem cells need to be alive in order for xylem to do their job

Answer 2

no

Question 3

do phloem cells need to be alive in order for phloem to do their job

Answer 3

yes

Question 4

what substances do xylem contain

Answer 4

water and dissolved minerals

Question 5

what substances do phloem contain

Answer 5

sugar and organic substances

Question 6

do insectivorous plants really eat insects

Answer 6

no

Question 7

from a genetic point of view, what is the difference between vegetative reproduction and sexual reproduction in plants

Answer 7

vegetative reproduction leads to offspring with genetic codes that are identical to the parent. sexual reproduction leads to offspring with genetic codes that are similar to the parent.

Question 8

what are the male and female reproductive organs of a flower

Answer 8

the stamen is the male organ

the carpel is the female organ

Question 9

why are the pollen gains and embryo sacs of flowers sometimes considered the gametophyte generation in an alteration of generations life cycle

Answer 9

both structures are multicellular and they both reproduce using gametes

Question 10

what two types of cells are found in a pollen grain

Answer 10

sperm cell and tube nucleus

Question 11

typically, how many cells are in an embryo sack and how many get fertilized

Answer 11

typically there are seven cells in an embryo sack and two of them gets fertilized

Question 12

what is the difference between pollination and fertilization

Answer 12

pollination is the transfer of pollen from an anther to a stigma. fertilization is the act of the sperms fusing with the egg and the large central nucleus in the embryo sac

Question 13

how many sperm cells are used in plant fertilization

Answer 13

two

Question 14

where does the endosperm come from

Answer 14

it comes from the fertilization of the large, two-nucleus cell that is at the center of the embryo sac

Question 15

name three basic parts of the plant embryo

Answer 15

radicle
hypocotyl
epicotyl

Question 16

what is the purpose of a fruit

Answer 16

a fruit allows for the dispersal of seeds to places away from the parent

Question 17

name some ways in which pollen is transferred from the stamens of one flower to the carpel of another

Answer 17

wind
bees
beetles
birds
moths
butterflies

Question 18

why are cotyledons sometimes called “seed leaves”

Answer 18

they form leaf-life structures if they end up rising above ground with the seedling

Question 19

what is the study of life processes in an organism called

Answer 19

physiology

Question 20

what kind of motion is turgor pressure responsible for

Answer 20

nastic movement

Question 21

plants store excess food in the form of what

Answer 21

polysaccharides known as starch

Question 22

what is loam

Answer 22

a mixture of gravel, sand, silt, clay, and organic matter

Question 23

what does the cohesion-tension theory describe

Answer 23

how water moves up a plant through the xylem

Question 24

what is the transport of organic chemicals and food through the ploem

Answer 24

translocation