#4 What Do These Creepy Plant Mouths Do? (Plant Tissues)

Question 1

1924

Answer 1

Dr. Katherine Esau. She worked on beet farm that had “curly-top disease.” Causes unusually curly leaves and stunts growth. Caused by leaf hoppers. By observing, Esau discovered how disease spread. Realized there’s a pathway. Figured leaf hoppers are the pathway through feeding on plant, the plants pathway for food is how it spread.

Question 2

Tissues

Answer 2

> Organized group of cells that have similar structures and function.
Transports nutrients. Different [blanks] make organs function

Question 3

Dermal Tissue

Answer 3

Covers entire plants outside, called the epidermis. Covered in layer of wax called cuticle. Prevents water from escaping.
>Stomata let in CO2 on this

Question 4

Trichomes

Answer 4

Little hairs on skin. Many different types.
Ex: Let out itchy toxins.
Some act as sunscreen
Acts as blanket for warmth
>Roots share billions of these to slorp water

Question 5

Vascular Tissue

Answer 5

> Forms circulatory system (veins). Specialized for tranport
Made up of 2 main cells:
Xylem and Phloem Cells

Question 6

Xylem Cells

Answer 6

> Specialized cell in vascular tissue
Transports nutrients from roots to leaves. Does this by digesting insides. Dies on purpose. Makes hollow insides.
As plant grows, meristems (stem cell clusters) generate new [blank] cells to create bigger pipes.

Question 7

Phloem Cells

Answer 7

> Transports stuff in opposite direction of xylem cells.
Moves sugar to rest of plant
Clears of cell contents, not as much as xylem. Have “companion cells” that help with functions taken away.

Question 8

Ground Tissue

Answer 8

> Everything that isn’t dermal or vascular
Holds hundreds of chloroplasts, organelle that contains chlorophyll, a pigment that captures sunlight and converts it into energy AKA photosynthesis. Gives leaves green color.

Question 9

Parenchyma

Answer 9

Cells that are main photosynthesizers, stores starch, extra sugars. Part of ground tissue

Question 10

Collenchyma

Answer 10

Part of ground tissue. Provides structural support while organs are still growing. Needs to be stretchy and flexible.

Question 11

Selerachyma

Answer 11

Part of ground tissue. Supports plant when it has too much weight or bending. Supports fully mature plants. Has dead inside cells.

Question 12

Cross Section

Answer 12

View on a microscope. Makes horizontal cuts along a plant sample

Question 13

Root

Answer 13

Vascular tissue in the middle to suck up water and nutrients