L13: Spores and Gametes

Question 1

perianth

Answer 1

petals and sepals

Question 2

solitary flower

Answer 2

a flower that is not part of an inflorescence

Question 3

inflorescence

Answer 3

a group of flowers arranged on a stem

Question 4

nectary

Answer 4

a glandular structure within a flower which secretes sugary nectar to attract pollinators

Question 5

where is the nectary located

Answer 5

commonly located at the base of flowers but position is not fixed within the floral morphology

Question 6

what produces floral meristems

Answer 6

inflorescence meristems

Question 7

what do floral meristems produce

Answer 7

floral organs

Question 8

Is inflorescence meristems indeterminate or determinate

Answer 8

indeterminate

Question 9

is floral meristem determinate or indeterminate

Answer 9

determinate

Question 10

sporophyte

Answer 10

the multicellular diploid generation of a plant life cycle (2n)

Question 11

gametophyte

Answer 11

the multicellular diploid generation of a plant life cycle (n)

Question 12

mitosis

Answer 12

division of the nucleus that produces cells with genetically-identical nuclei

Question 13

meiosis

Answer 13

special type of division that cuts the chromosome number in half

Question 14

gametophyte (n) produces ______ (n) by mitosis

Answer 14

gametes

Question 15

sporophyte (2n) produces ______ (n) by meiosis

Answer 15

spores

Question 16

T/F: in mosses, haploid gametophyte is smaller than the sporophyte

Answer 16

F. it is larger

Question 17

T/F: in flowering plants, diploid sporophytes is larger than gametophytes

Answer 17

T

Question 18

where is pollen made

Answer 18

the anther

Question 19

what does sporophyte meiosis yield

Answer 19

tetrad of 4 microspores

Question 20

What do microspores produce after mitosis

Answer 20

yields a microgametophyte, also know as a pollen grain

Question 21

Is pollen multicellular

Answer 21

yes

Question 22

pollination

Answer 22

transfer of pollen to stigma

Question 23

what happens after pollination

Answer 23

tube cell forms a pollen tube that grow toward the ovary. The generative cell then migrates through the pollen tube and divides to form 2 male gametophytes (2 sperm cells)

Question 24

what does sporophyte meiosis yield

Answer 24

4 megaspores but only 1 survives

Question 25

what is produced when a megaspores goes through funky mitosis

Answer 25

yields megagametophyte, also known as the embryo sac