Angiosperms

Question 1

Characteristics of monocots?

Answer 1

One seed catyledon 
germinates and puts off 1 leaf
Parallel vein pattern
Most annuals
Only herbaceous (not woody)

Question 2

Characteristics of dicots?

Answer 2

Two seed catelydon
Germinated and puts off 2 leaves
Netted vein pattern (criss cross)
Annuals, bi-annuals and perennials
Herbaceous and woody

Question 3

What is transpiration?

Answer 3

Water leaking from stem and leaves via the stomata

Question 4

What is fruit used for in angiosperms?

Answer 4

Fleshy layer that forms around the ovary and seeds. Used to spread seeds

Question 5

What is the pistil (female flower) made up of?

Answer 5

Stigma - catches pollen (near the top in the middle)
Style - carry’s pollen to the ovary (stem of stigma)
Ovary - contains the eggs
Ovule - surrounds the eggs

Question 6

What is the stamen made up of?

Answer 6

Anthers - produces pollen (two oval shapes)

Filament - raises anthers in the air (stem of anthers)

Question 7

What are the accessory organs of a flower, and what is their function?

Answer 7

Petal - brightly coloured
Sepal - leaves protect flower when it's closed up
Receptacle - releases odor 
Nectar - found at base of ovary
Function - attract vector (pollinator)

Question 8

What is double fertilization, and why does the plant undergo it?

Answer 8

1. Pollen lands on stigma and grows a pollen tube to the ovary
2. Sperm (1n) fertilizes egg 1n) to form a zygote (2n)
3. After fertilization, zygote grows into an embryo
4. Second sperm fertilizes diploid endosperm to become triploid (3n)
5. It grows to fill the ovule, then becomes seed
   It undergoes this process to form a fruit