Section 1:502 introduction to plant reproduction

Section 1: introduction to plant reproduction

Poll

ARE YOU READY?

• YES

• NO

Multiple Choice

The gametophyte stage produces gametes .......

• egg and sperm.

• spores and leaves

• diploid and haploid

• All of the above.

Multiple Choice

Haploid is ..............

• 2n

• n

• 46 chromosomes

• gametophyte

Multiple Choice

Fertilization of the egg forms the first cell of the _____

• haploid

• meiosis

• gametophyte stage

• sporophyte stage

Multiple Choice

Eggs are produced in the female structure, called the _________.

• antheridium.

• gametophyte.

• archegonium

• nonvascular plants.

Multiple Choice

antheridium is the location of the _______

• sperm

• egg

• spores

• chemotaxis

Multiple Choice

Sperm move towards the archegonium in response to chemicals released by the female gametophyte. What do you call this chemical?

• sporophyte

• antheridium

• chemotaxis

• All of the above.

Multiple Choice

Spores are released from the ________

• protonema

• chemotaxis

• stalk with a capsule

• zygote

Multiple Choice

a small structure that can develop into a gametophyte and restart the cycle

• protonema

• chemotaxis

• archegonium

• antheridium

Multiple Choice

The fronds contain spore-producing structures called ________.

• fern’s sporophyte

• prothallus

• sori

• protonema

Multiple Choice

Which of the following is true about prothallus?

• develop both archegonia and antheridia

• receives support and nutrition

• produces a tiny heart shaped gametophyte

• All of the above.

Multiple Choice

heterosporous means ________.

• the sporophyte grows on the prothallus and receives support and nutrition

• they produce two types of spores that develop into male and female groups.

• a tiny heart shaped gametophyte

Multiple Choice

Each ovule has a megasporangium that produces _______

• heterosporous

• micropyle

• microspores

• megaspores.

Multiple Choice

produce the male gametophyte or pollen grain

• megaspores

• microspores

• heterosporous

• micropyle

Multiple Choice

micropyle is ___________

• produce the male gametophyte

• One of the megaspores develops into the female gametophyte

• they produce two types of spores that develop into male and female groups.

• the opening of the ovule.