Plant Form and Function Flashcards

1
Q

In which structure do plants sustain growth?

A

Apical meristems.

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2
Q

What is the function of lateral meristems?

A

Add a thickness to woody plants, allowing for them to grow taller.

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3
Q

What are the two types of lateral meristems?

A

Vascular cambium and cork cambium.

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4
Q

Describe the function of the vascular cambium.

A

Adds thickness to plants by adding secondary xylem (wood) and secondary phloem.

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5
Q

Describe the function of the cork cambium.

A

Located surrounding the vascular cambium, the cork cambium replaces the epiderm with the tougher periderm.

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6
Q

What are the three tissue systems of plants?

A

Ground, dermal, vascular.

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7
Q

What is ground tissue internal to the vasculature called?

A

Pith.

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8
Q

What is ground tissue external to the vasculature called?

A

Cortex.

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9
Q

Describe the dermal tissue system and its components.

A

Consists of epidermis in non-woody plants, and consists of periderm in woody plants.

Epidermis is covered by cuticle and has outgrowths called trichomes.

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10
Q

What is the function of the cuticle?

A

To prevent water loss from the epidermis, can also cool the plant down by reflecting UV rays.

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11
Q

What are trichomes?

A

Outgrowths of the shoot epidermis used to help reduce water loss and protect against insects.

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12
Q

What is the purpose of glandular trichomes?

A

Accumulate specialized metabolites that help with plant defense.

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13
Q

What is the purpose of spear-like trichomes?

A

Hindering movement of insects crawling.

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14
Q

T/F; Trichomes are living cells with a nucleus.

A

True!

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15
Q

What is the purpose of the vascular tissue system?

A

Long distance transport of material between shoots and roots, as well as mechanical support.

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16
Q

What are the two vascular tissues.

A

Xylem and phloem.

17
Q

What is the purpose of xylem?

A

Transports water and dissolved minerals upward from roots to shoots.

18
Q

What is the purpose of phloem?

A

Transports nutrients from where they are made to where they are needed.

19
Q

What is the vascular tissue of a stem or root called?

20
Q

T/F; The vascular tissue of leaves and stems is divided into vascular bundles.

21
Q

T/F; The vascular tissue of angiosperm roots is divided into vascular bundles.

A

False, is instead one solid central vascular cylinder.

22
Q

Ground tissue includes cells specialized in ____

A

Storage, photosynthesis, support and transport.

23
Q

What are the three differentiated plant cell types that we focused on?

A

Parenchyma, sclerenchyma, collenchyma.

24
Q

Describe the structure and function of Parenchyma cells.

A

Thin, flexible cell walls made of sugars, cellulose and proteins.

Thin cell wall allows for cells to perform metabolic functions, and also has ability to divide and differentiate.

25
Q

Describe the structure and function of Collenchyma cells.