Which plant structure is the site of photosynthesis
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Which plant structure is the site of photosynthesis?. Stem Leaves Flower Roots. Leaves!. Which organelle helps the plant perform photosynthesis?. Mitochondria Chloroplast Ribosome Nucleus. Chloroplast!. Which plant structure anchors the plant into the ground?. Stem Leaves Flower

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Which organelle helps the plant perform photosynthesis
Which organelle helps the plant perform photosynthesis?

  • Mitochondria

  • Chloroplast

  • Ribosome

  • Nucleus

Chloroplast!



Which plant structure supports the plant
Which plant structure supports the plant?

  • Stem

  • Leaves

  • Flower

  • Roots

Stem!


Plants can be divided into 3 main parts

leaf

Plants can be divided into 3 main parts:

Some plants may also have flowers!


Stems
Stems

  • Support the plant

  • Transport of water & nutrients through xylem & phloem

  • Produce leaves & flowers & holds them upright


Roots
Roots

  • Anchor the plant into the ground

  • Take in water & nutrients

  • Two types of roots:

    • Fibrous

    • Tap Roots


Fibrous roots
Fibrous Roots

  • No root grows larger than another

  • Can have up to 14 million roots!

  • Help prevent erosion

  • Large surface area to absorb lots of water

Grasses, Violets, & Marigolds all have fibrous roots!



Tap roots
Tap Roots

  • Single main root with secondary hair-like roots extending

  • Difficult to pull from the ground

Carrots, Dandelions, Beets, & Radishes all have tap roots.



Which type of root is this
Which type of root is this?

  • Tap Roots

  • Fibrous Roots

Fibrous Roots!


Which type of root does this plant have
Which type of root does this plant have?

  • Tap Roots

  • Fibrous Roots

Fibrous Roots!


Which type of root is this1
Which type of root is this?

  • Tap Roots

  • Fibrous Roots

Tap Root!


Desert plants most likely have which type of root
Desert plants most likely have which type of root?

  • Tap Roots

  • Fibrous Roots

Fibrous Roots! Fibrous Roots cover a large surface area, allowing them to absorb a large amount of water!


Leaves
Leaves

Blade

  • Site of photosynthesis

  • Structure:

    • The large, flat surface is the blade, and it is connected to the stem by the petiole.


Leaves1
Leaves

Blade

  • Structure:

    • Leaves are produced from the stem at the axillary bud

    • It can be simple (1 blade per leaf), or compound (several blades per leaf)


Simple leaves
Simple Leaves

Ilex cornuta

Maple Leaf


Compound leaves
Compound Leaves

Rose Bush


Leaves2
Leaves

  • Epidermis: skin of the leaf, protecting it

  • Mesophyll Layers: where photosynthesis takes place


Leaves3
Leaves

  • Stomata (sin. “stoma”): openings that allow water & oxygen out, and carbon dioxide in. Controlled by guard cells.

  • Cuticle: waxy coating that helps prevent water loss via transpiration (evaporation of water from leaves)


Which part of the leaf contains the most chloroplasts
Which part of the leaf contains the most chloroplasts?

  • Epidermis

  • Mesophyll Layers

  • Stomata

  • Cuticle

The Mesophyll Layers! Photosynthesis occurs here, so they contain many chloroplasts.


Would you expect the stomata to be open or closed at night
Would you expect the stomata to be open or closed at night?

  • Open

  • Closed

Closed! The stomata open to allow CO2 in during photosynthesis, but if there is no sun, they’ll close to save water.


Which plant structure absorbs water
Which plant structure absorbs water?

  • Stem

  • Leaves

  • Flower

  • Roots

Roots! The roots absorb water, while the leaves release it (transpiration).


Which plant structure contains tissue that moves water sugar through the plant
Which plant structure contains tissue that moves water & sugar through the plant?

  • Stem

  • Leaves

  • Flower

  • Roots

Stem! The stem contains the Vascular Tissue, which consists of the Xylem & Phloem.


Which part of plants are edible
Which part of plants are edible? sugar through the plant?

  • Stem

  • Leaves

  • Flower

  • Roots

  • Seeds

  • Fruit

All of the above!


Do you know where your food is from
Do you know where your food is from? sugar through the plant?

  • Sort the different types of food by what part of a plant you think it came from.

  • When your group is finished, raise your hand to get your exit ticket!

    • Do not turn in your exit ticket to the basket. Put it in my hands when the bell rings!


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