Leaf And Crap Flashcards

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0
Q

Hypertonicity?

A

There is more solute outside than inside. There is more water inside that outside.

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1
Q

Isotonic?

A

The solute inside and outside of the leaf is balanced. The water is also balanced.

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2
Q

Hypotonicity.

A

The solute inside is higher than the solute content outside. The water inside is lower than the content outside.

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3
Q

What is the epidermal cell?

A

Form protective layer. One cell thick. Transparent. No chloroplasts

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4
Q

Cuticle.

A

Covers epidermal. And prevents evaporation of water. Waxy. Secreted.

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5
Q

Palisade tissue cell

A

Located underneath upper layer.
Contains most chloroplasts.
Important photosynthesis. Green

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6
Q

Spongy mesophyll

A

Below palisade. Loose.

Help exchange gasses.

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7
Q

Stomata and guard cells

A

Small openings in epidermal layer.
Allows water to enter and leave.
Located mostly on underside.
2 lips.

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8
Q

Vascular tissue cells?

A

Series of tubes that transport fluid.

Xylem. Phloem.

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9
Q

Phloem.

A

Carries sugar produced in leaves to other parts of the plant.

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10
Q

Xylem?

A

Thick walled tubes. Inside.

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11
Q

Cohesion in water?

A

Water molecules are attracted to other water molecules.

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12
Q

Adhesion.

A

Water molecules are attracted to other substances.

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13
Q

Root pressure.

A

Dissolved minerals enter xylem cells through active transport. Dissolve minerals create hypotonic situation. Forcing more water in.

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14
Q

Lenticel?

A

Natural openings found on the stems of trees. Herbaceous. Provide path for gas exchange.

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15
Q

What do plants respond to?

A

Stimuli.

16
Q

Phototropism? What is it.

A

Movement in respond to light stimulant.

17
Q

When the plant has positive phototropism.

A

It grows towards the light.

18
Q

When the plant has negative phototropism.

A

grow away from the light. Roots

19
Q

Where are the stimulants in the grass.

A

At the top of the grass.

20
Q

Why does the grass bend over in teaponse to stimulants.

A

Light facing leaves send signals to lose weight well dark side leaves send signals to gain weight. Thus bending the leave to better face the sun.

21
Q

Who made the discovery thats cells grow depending on light stimulant.

A

Boysen jensen

22
Q

Gravitropism.

A

A plant responds to the force of gravity.

23
Q

Negative Gravitrotopism.

A

Things that grow against the gravitational force.

24
Q

Positive Gravitrotopism.

A

Things that grow with gravitational force.