CLEP Biology Plant Reproduction and Structure 2

Question 1

Which tissue in a plant seed stores nutrients to support early embryo growth?

Accepted Answer

Endosperm

Answer

Testa

Answer

Radicle

Answer

Plumule

Question 2

In angiosperms, double fertilization produces which two structures?

Accepted Answer

Zygote and endosperm nucleus

Answer

Two zygotes

Answer

Endosperm and seed coat

Answer

Pollen tube and ovule

Question 3

What is the function of the micropyle in a seed?

Accepted Answer

Allows water and oxygen entry for germination

Answer

Produces the embryo

Answer

Stores starch reserves

Answer

Anchors the seed to the fruit wall

Question 4

Which of the following is a characteristic unique to monocot seeds compared to dicot seeds?

Accepted Answer

One cotyledon

Answer

Endosperm formation

Answer

Double fertilization

Answer

Seed coat formation

Question 5

Seed dormancy is MOST directly broken in many species by:

Accepted Answer

Prolonged cold treatment (stratification)

Answer

Increased carbon dioxide levels

Answer

Removal of the cotyledons

Answer

High concentrations of abscisic acid

Question 6

Which plant hormone is primarily responsible for maintaining seed dormancy?

Accepted Answer

Abscisic acid

Answer

Gibberellin

Answer

Cytokinin

Answer

Auxin

Question 7

The scutellum found in grass seeds (monocots) is functionally equivalent to which structure in dicot seeds?

Accepted Answer

Cotyledon

Answer

Endosperm

Answer

Radicle

Answer

Epicotyl