Plant Unit Review

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					                            Plant Unit Review - Chapter 23

Part I – Fly Swat

Xylem       Phloem        Epidermis         Endodermis Cortex Cambium

    1.   Transports water & minerals upward
    2.   Storage of food
    3.   Cell division (growth)
    4.   Transports food to roots for storage
    5.   One layer of cells located between the central cylinder & cortex; provides
         a layer of water-proofing
     6. Provides protection
     7. In woody stems, this tissue is replaced by bark
     8. This tissue is found in herbaceous dicot stems but not in monocots

Taproot        Adventitious Root           Fibrous Root         Aerial Root

     1. Best adapted for storage
     2. Has the most surface area and is best for absorption
     3. Grows only in humid environments because it gets its moisture from the
     4. Best for preventing soil erosion
     5. Best in a drought
     6. Grows from swellings in the stem (above ground) to help brace the plant
     7. Primary root is dominant, without a lot of secondary branching
     8. Found only on rocks or trees in damp environments
     9. Grass in an example of this
     10. Corn is an example of this
     11. Dandelions are an example of this

True                                                     False

    1. Cork is the storage tissue found in roots
    2. Photosynthesis occurs in the epidermis of the leaf
    3. A cuticle is a non-living layer of a leaf that prevents plant tissues from
       drying out
    4. Wind has a drying effect on plants and will decrease the rate of
    5. A tree stem forms a new band of xylem during each year of growth
    6. Sapwood is the active, functional wood found at the center of a woody
    7. A potato is an example of a tuber – a modified stem that stores food
    8. Transpiration is the loss of oxygen through a plant’s leaves
    9. In plants, the opening and closing of stomata balance water loss with the
        need for carbon dioxide
    10. When guard cells of a leaf lose water, the stomata open

Part II – Jeopardy

Which of the following would cause stomata to close?
A.Sugar produced by photosynthesis
C.Extreme water loss on a hot, dry day
D.Both B & C

All of the cells of a leaf contain chlorophyll except:
A.Palisade cells
B.Guard cells
C.Epidermal cells
D.Spongy cells
E.All of the above cells contain chlorophyll

Which tissue of a leaf is considered to be the primary food making layer?
B.Palisade layer
C.Spongy layer

All of the following are considered tissues of bark except:

Which of the following is most important in moving water through a tree?
A.Capillary action
Which of the following adaptations would most likely be found in plants that live in
dry environments?
A.Needle like leaves
B.A taproot
C.A waxy cuticle
D.Water storage in the stem
E.All of the above

The tissue most abundant in the trunk of a tree is:

Herbaceous stems
A.Remain soft, green, & flexible throughout their lifetime
B.May be monocots or dicots
C.Are held upright by water pressure
D.All of the above
E.A and C only

Which of the following would increase the rate of transpiration?
B.High temperature
D.Both A and B
E.Both B and C

Which of the following would cause leaf stomata to close?
A.Water molecules moving into the guard cells by osmosis
B.Air around the plant becoming hot and dry
C.Salt molecules being excreted by guard cells and water following
E.B and C only

One celled extensions of the root epidermis which increase water absorption

Swellings in the stem from which some roots or new leaves develop

The vegetative plant organ mainly involved in food making

Dark, inactive wood found at the center of a woody stem – unable to conduct
materials due to clogging by resins, gums, & tannins
How does an herbaceous monocot stem differ from that of an herbaceous

Identify 3 characteristics common to all plants

What causes the appearance of annual rings?

Give 3 functions of roots

Give 3 functions of stems

The process in which water vapor is released from leaves

The process in which water vapor is released from leaves

Part III – Diagrams

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