Biology Plant Reproduction

Question 1

What is dominant in the angiosperm life cycle?

Answer 1

The sporophyte

Question 2

What are gymnosperms characterized as?

Answer 2

Naked seeds, have no fruit or flower

Question 3

What is the definition of angiosperms?

Answer 3

Plants the produce flowers or fruit

Question 4

What size of seeds have evolved more in angiosperms?

Answer 4

larger seeds

Question 5

What are the advantages of asexual reproduction?

Answer 5

Efficient, increases individual gamete output

Question 6

What are the advantages of sexual reproduction?

Answer 6

meiosis and outcrossing that lead to genetic diversity

Question 7

What is a flower?

Answer 7

Specialized shoot with 4 layers of modified leaves

Question 8

What is a perfect flower?

Answer 8

All 4 different part and both reproductive parts

Question 9

How many cells are in a female gametophyte?

Answer 9

7 cells

Question 10

How many cells are in the male gametophyte?

Answer 10

only 2 or 3 cells

Question 11

How is pollen advantageous for life on land?

Answer 11

Protect sperm, no water required, colonize new dry places

Question 12

How do gymnosperms spread their pollen?

Answer 12

Through wind pollination

Question 13

What is the definition of pollination?

Answer 13

Delivery of pollen from anther to stigma

Question 14

What is the definition of fertilization?

Answer 14

Joining of sperm and egg to form diploid zygote

Question 15

What is sexual deception?

Answer 15

Mimic insects, appearance, and pheromones

Question 16

What do germinated pollen grain produce?

Answer 16

Generate cell divided to sperm

Question 17

What do the pollen tubes do?

Answer 17

Fertilize mature ovules in a single ovary

Question 18

What are the steps in double fertilization?

Answer 18

1. Pollen grain lands on stigma
2. Pollen tube grow down style towards ovary
3. Sperms divides into 2 sperm in pollen tube
4. Pollen tube and sperms reach ovule

Question 19

What is the ultimate survival structure for land?

Answer 19

Seeds because of food supply, thick outer coat, and dispersal mechanisms

Question 20

What is the same between spores and seeds?

Answer 20

Durable, disperse, and reproductive structure

Question 21

What is different between spores and seeds?

Answer 21

Spore is unicellular or bicellular, where the seed is multicellular

Spore is haploid and a seed in multigenerational

Question 22

What is a eudicot?

Answer 22

2 cotyledons that store carbs

Question 23

What is a monocot?

Answer 23

1 cotyledon where the endosperm store carbs

Question 24

In what structure do ovules become seeds?

Answer 24

fruit

Question 25

How does the ovary/fruit help a plant?

Answer 25

Protects the ovule/seed and helps disperse seed

Question 26

What are the advantages to seed dispersal?

Answer 26

Escape a deteriorating environment and avoid competition and inbreeding

Question 27

What is the radicle in a plant?

Answer 27

an embryonic root that is first to emerge

Question 28

What do the cotyledons or endosperm do?

Answer 28

Feed the heterotrophic seedling.

Question 28

What is the hook or coleoptile of a plant?

Answer 28

Protects the emerging shoot

Question 29

what does germination depend on?

Answer 29

The amount of water uptake