plant tissues+vegetative+reproductive organs

Question 1

reproductive organs:
stamen and pistil

Answer 1

stamen: = tyčinka
- male sex organ
- the pollen producing part
- consists of two parts:
- anthers = peľnica
- filament = nitka

Question 2

pollination

Answer 2

• transfer of pollen grains from the anther to the stigma.
• This can occur through various agents, including wind, water, insects, and other animals.
• Pollination is crucial because it enables the possibility of fertilization.

Question 2

pistil

Answer 2

= piestik
- female reproductive organ
- centrally located
- consists of 3 parts:
stigma = blizna
style = čnelka
ovary = semenník

Question 2

fertilization

Answer 2

• occurs after pollination.
• It is the process where the sperm cells in the pollen unite with the egg cells in the ovule.
• This leads to the formation of a zygote, which will develop into a seed.

Question 2

difference between self-pollination and cross-pollination

Answer 2

Self-pollination:
- is when pollen fertilizes ovules within the same flower or plant.

Cross-pollination:
- is when pollen from one plant fertilizes the ovules of another plant, often facilitated by pollinators.

-self-pollination involves pollen from the same plant, while cross-pollination involves pollen from different plants, promoting greater genetic variation.

Question 2

difference between simple and compound leaf

Answer 2

simple leaf:
- has a single, undivided blade
- some are deeply lobed
- axillary bud, petiole

compound leaf:
- blade consists of multiple leaflets
- a leaflet has no axillary bud at its base
- some have each leaflets further devided into smaller ones
- axillary bud, petiole, leaflet

Question 3

female reprodutcive organ

Answer 3

pistil

Question 4

male reproductive organ

Answer 4

stamen

Question 5

pollinators

Answer 5

bees, butterflies, hummingbirds

Question 6

insect pollinated flowers

Answer 6

Insect-pollinated flowers are those that rely on insects, like bees and butterflies, for pollination. They often have bright colors, sweet scents, and nectar to attract these pollinators. Examples include sunflowers, orchids, and clover.

Question 7

wind pollinated flowers

Answer 7

Wind-pollinated flowers are those that rely on the wind to transfer pollen. They typically have small, dull-colored flowers, produce large amounts of lightweight pollen, and often lack petals and nectar. Examples include grasses, oaks, and pine trees.

Question 8

what is a vertical stem growing underground?

Answer 8

rhizome = podzemok

Question 9

what is a long stem growing horizontally right above the surface?

Answer 9

stolon = poplaz

Question 10

what is the final zone of the root

Answer 10

zone of differentiation

Question 11

whats the function of spongy parenchyma

Answer 11

temporary storage of sugars

Question 12

whats the function of palisade parenchyma

Answer 12

houses most of the leafs chloroplasts

Question 13

functions of epidermis

Answer 13

protects againts water loss, regulates gas, exchange, absorbs water

Question 14

functions of stem

Answer 14

• bear leaves and buds
• elongate and orient the shoot in a way that maximizes photosynthesis
• carry water, minerals and food
• green stems = also photosynthesis