Angiosperms

SESSION 1:

Flowers (Angiosperms)

Multiple Choice

Which part of a flower is responsible for receiving pollen?

• Sepals

• Petals

• Stigma

• Anthers

Multiple Choice

What is the primary function of petals in a flower?

• Protecting reproductive organs

• Producing nectar

• Anchoring the flower to the stem

• Attracting pollinators

Multiple Choice

What is the correct sequence of stages in the life cycle of angiosperms?

• Gametophyte → Sporophyte → Pollination → Fertilization

• Pollination → Fertilization → Sporophyte → Gametophyte

• Gametophyte → Pollination → Fertilization → Sporophyte

• Sporophyte → Gametophyte → Pollination → Fertilization

Multiple Choice

Which of the following is a method of pollination carried out by water?

• Anemophily

• Hydrophily

• Entomophily

• Chiropterophily

SESSION 2:
SEXUAL REPRODUCTION IN ANGIOSPERMS

Multiple Choice

What is the primary purpose of sexual reproduction in angiosperms?

• To increase vegetative growth

• To produce seeds for human consumption

• To create genetically diverse offspring

• To improve water absorption

Multiple Choice

During double fertilization, which structure combines with the sperm cell to form the triploid endosperm?

• Egg cell

• Synergid cell

• Polar nuclei

• Antipodal cells

Multiple Choice

What is the end result of double fertilization in angiosperms?

• Formation of a seed coat

• Formation of a zygote and endosperm

• Development of a gametophyte

• Fusion of pollen grains

Multiple Choice

Why do plants utilize various methods of seed dispersal?

• To prevent germination

• To attract herbivores

• To compete with other plants

• To colonize new areas and reduce competition

Multiple Choice

Which of the following is NOT a method of seed dispersal used by plants?

• Wind dispersal (anemochory)

• Water dispersal (hydrochory)

• Explosion dispersal (ballochory)

• Seed consumption by humans

SESSION 3: FRUITS

SESSION 4: SEEDS

Seed Germination

• Seed germination is initiated by

imbibition

• Imbibition causes the seed to

expand and rupture its coat

• Enzymes digest stored food in

endosperm and/or cotyledons

• Nutrients are transferred to the

growing embryo

Germination in Dicots

• The first organ to emerge is

the radicle

• Hook forms in the hypocotyl,

and growth pushes the hook
above ground

• Hypocotyl straightens, the

cotyledons separate, and the
epicotyl spreads its first true
leaves

Germination in

Monocots

• Shoot tip grows

through the coleoptile
(sheath) once it has
pushed through the
surface of the soil

• The cotyledon remains

belowground

Multiple Choice

What are the stages of embryo development in angiosperms?

• Zygote, endosperm, seed coat

• Embryo sac, endosperm, seedling

• Fertilization, embryogenesis, germination

• Gametophyte, sporophyte, embryo

Multiple Choice

Which of the following best describes endosperm development in angiosperms?

• Formation of the protective seed coat

• Maturation of the embryo into a seedling

• Division and growth of the triploid cell to provide nourishment

• Fusion of male and female gametophytes

Multiple Choice

What is the primary importance of seed dormancy in plant life cycles?

• Prevents germination in unfavorable conditions

• Promotes rapid growth of seedlings

• Ensures cross-pollination

• Increases seed production

Multiple Choice

How does seed germination differ between eudicots and monocots?

• Eudicots have two seed leaves, while monocots have one

• Monocots have larger seeds than eudicots

• Eudicots undergo double fertilization, while monocots do not

• Monocots have longer periods of seed dormancy

Multiple Choice

What is the function of cotyledons during seed germination in eudicots and monocots?

• They protect the embryo from pathogens

• They store nutrients for the developing seedling

• They facilitate water absorption from the soil

• They produce pollen for pollination