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| 1 | |
Different tissues performing one or more functions make up an organ. |
| | A) | True |
| | B) | False |
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| 2 | |
Which of the following is a vegetative organ of a flowering plant? |
| | A) | stem |
| | B) | root |
| | C) | leaf |
| | D) | all of the above |
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| 3 | |
Which flowering plant organ functions in reproduction? |
| | A) | root |
| | B) | flower |
| | C) | leaf |
| | D) | stem |
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| 4 | |
The shoot system contains _____. |
| | A) | stems |
| | B) | leaves |
| | C) | both A and B |
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| 5 | |
Axillary buds develop into _____. |
| | A) | branches of stems |
| | B) | flowers |
| | C) | both A and B |
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| 6 | |
The root system _____. |
| | A) | anchors the plant in the soil |
| | B) | produces hormones that stimulate stem growth |
| | C) | absorbs water and minerals from the soil |
| | D) | all of the above |
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| 7 | |
The absorptive capacity of roots is increased by _____. |
| | A) | villi |
| | B) | root hairs |
| | C) | cilia |
| | D) | stomates |
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| 8 | |
Transplantation of a plant is more successful if you take some of the surrounding soil with the plant because the root hairs remain intact. |
| | A) | True |
| | B) | False |
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| 9 | |
Roots are the only type of plant organ in the root system. |
| | A) | True |
| | B) | False |
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| 10 | |
All stem cells are living cells. |
| | A) | True |
| | B) | False |
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| 11 | |
The wide portion of a foliage leaf is called the petiole. |
| | A) | True |
| | B) | False |
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| 12 | |
The plant organ which performs photosynthesis is the _____. |
| | A) | stem |
| | B) | leaf |
| | C) | root |
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| 13 | |
Foliage leaves _____. |
| | A) | absorb water |
| | B) | are thick and woody |
| | C) | collect solar energy |
| | D) | all of the above |
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| 14 | |
Stems _____. |
| | A) | transport water and nutrients from the roots to the leaves |
| | B) | may store water or nutrients |
| | C) | support the leaves so they can get as much sunlight as possible |
| | D) | all of the above |
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| 15 | |
A(n) _____ occurs where leaves are attached to the stem. |
| | A) | node |
| | B) | petiole |
| | C) | internode |
| | D) | axillary bud |
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| 16 | |
Stems can be identified by the presence of _____. |
| | A) | nodes |
| | B) | internodes |
| | C) | both A and B |
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| 17 | |
Some stems grow horizontally and are found underground. |
| | A) | True |
| | B) | False |
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| 18 | |
Monocot and dicot roots have the same arrangement of vascular tissue. |
| | A) | True |
| | B) | False |
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| 19 | |
In leaves, vascular tissue is bundled in veins. |
| | A) | True |
| | B) | False |
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| 20 | |
Food sources that are monocots include _____. |
| | A) | rice |
| | B) | wheat |
| | C) | corn |
| | D) | all of the above |
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| 21 | |
Dicots exhibit _____ venation. |
| | A) | pinnate |
| | B) | palmate |
| | C) | both A and B |
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| 22 | |
You would identify _____ as a monocot based on its parallel leaf veins. |
| | A) | an oak |
| | B) | a rose |
| | C) | grass |
| | D) | dandelion |
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| 23 | |
The monocots are the larger of the two groups of angiosperms. |
| | A) | True |
| | B) | False |
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| 24 | |
In the _____, phloem is located between the arms of xylem which has a star or X shape. |
| | A) | monocot stem |
| | B) | monocot leaf |
| | C) | dicot stem |
| | D) | dicot root |
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| 25 | |
Cotyledons perform photosynthesis for the seedling. |
| | A) | True |
| | B) | False |
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| 26 | |
Monocots have _____. |
| | A) | one cotyledon |
| | B) | flower parts in multiples of fours or fives |
| | C) | tap roots |
| | D) | netted venation |
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| 27 | |
Dicots are characterized by _____. |
| | A) | tap roots |
| | B) | palmate or pinnate venation |
| | C) | two seed leaves |
| | D) | all of the above |
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| 28 | |
Procambium meristem tissue produces _____ tissue. |
| | A) | epidermal |
| | B) | vascular |
| | C) | ground |
| | D) | all of the above |
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| 29 | |
In roots, certain epidermal cells have roots hairs which _____. |
| | A) | help anchor the plant |
| | B) | increase the surface area for water absorption |
| | C) | both A and B |
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| 30 | |
In older woody plants, the epidermis of the stem is replaced by _____ tissue. |
| | A) | cork |
| | B) | vascular |
| | C) | ground |
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| 31 | |
Cork cells _____. |
| | A) | are nonliving |
| | B) | protect the plant from fungal, bacterial and animal attack |
| | C) | are waterproof |
| | D) | all of the above |
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| 32 | |
The waxy cuticle _____. |
| | A) | minimizes water loss |
| | B) | protects against bacterial infection |
| | C) | covers the epidermal cells exposed to air |
| | D) | all of the above |
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| 33 | |
Epidermal cells of stems and leaves may produce protective hairs or substances that discourage predation. |
| | A) | True |
| | B) | False |
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| 34 | |
The least specialized of the cell types which are found in all the organs of a plant are _____. |
| | A) | parenchyma |
| | B) | collenchyma |
| | C) | sclerenchyma |
| | D) | none of the above |
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| 35 | |
The apical meristem in a plant is located _____. |
| | A) | in the tip of the stem |
| | B) | in the tip of the root |
| | C) | both A and B |
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| 36 | |
Protoderm gives rise to _____. |
| | A) | epidermis |
| | B) | ground tissue |
| | C) | vascular tissue |
| | D) | cork cells |
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| 37 | |
Sclerenchyma cells _____. |
| | A) | have thick secondary cell walls reinforced with lignin |
| | B) | are nonliving |
| | C) | support mature regions of the plant |
| | D) | all of the above |
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| 38 | |
Ground tissue contains _____ cells. |
| | A) | parenchyma |
| | B) | collenchyma |
| | C) | sclerenchyma |
| | D) | all of the above |
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| 39 | |
The ability of plant cuttings to develop roots is associated with the presence of _____ cells. |
| | A) | cork |
| | B) | sclerenchyma |
| | C) | parenchyma |
| | D) | xylem |
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| 40 | |
The gritty texture characteristic of pears is due to the presence of sclerenchyma cells. |
| | A) | True |
| | B) | False |
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| 41 | |
The product of photosynthesis is transported by the _____. |
| | A) | parenchyma |
| | B) | phloem |
| | C) | cork cambium |
| | D) | xylem |
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| 42 | |
Tracheids and vessel elements comprise _____ which transports water and minerals from the roots to the leaves. |
| | A) | xylem |
| | B) | schlerenchyma |
| | C) | phloem |
| | D) | epidermal tissue |
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| 43 | |
Sieve-tube elements are connected to each other and companion cells by _____. |
| | A) | gap junctions |
| | B) | plasmodesmata |
| | C) | desmosomes |
| | D) | tight junctions |
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| 44 | |
Companion cells are believed to control the function and maintain the life of the sieve-tube elements. |
| | A) | True |
| | B) | False |
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| 45 | |
The cells in the zone of _____ are mature and fully differentiated. |
| | A) | elongation |
| | B) | cell division |
| | C) | maturation |
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| 46 | |
The _____ of a dicot root functions in food storage. |
| | A) | cortex |
| | B) | vascular tissue |
| | C) | endodermis |
| | D) | epidermis |
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| 47 | |
A vascular ring surrounding a central pith is characteristic of a monocot root. |
| | A) | True |
| | B) | False |
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| 48 | |
The _____ regulates the entrance of water and minerals into the vascular cylinder. |
| | A) | cortex |
| | B) | endodermis |
| | C) | pericycle |
| | D) | epidermis |
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| 49 | |
A _____ is an example of a taproot that stores food. |
| | A) | carrot |
| | B) | beet |
| | C) | radish |
| | D) | all of the above |
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| 50 | |
A fibrous root system is characteristic of _____. |
| | A) | monocots |
| | B) | dicots |
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| 51 | |
The main function of adventitious roots is to anchor the plant. |
| | A) | True |
| | B) | False |
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| 52 | |
The haustoria of dodder and broomrapes are true roots. |
| | A) | True |
| | B) | False |
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| 53 | |
The root nodules of peas, bean and other legumes contain fungi which help plants get water and minerals. |
| | A) | True |
| | B) | False |
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| 54 | |
The procambium produces the first _____ cells. |
| | A) | xylem |
| | B) | phloem |
| | C) | both A and B |
| | D) | neither A nor B |
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| 55 | |
Mature nonwoody stems called herbaceous stems exhibit primary and secondary growth. |
| | A) | True |
| | B) | False |
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| 56 | |
The shoot apical meristem is protected within a(n) _____ bud. |
| | A) | terminal |
| | B) | axillary |
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| 57 | |
The tissue that occurs between the xylem and phloem is the _____. |
| | A) | cork cambium |
| | B) | protoderm |
| | C) | ground meristem |
| | D) | vascular cambium |
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| 58 | |
The secondary growth of a plant increases the _____ of a plant. |
| | A) | length |
| | B) | girth |
| | C) | both A and B |
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| 59 | |
The bark of a tree contains _____. |
| | A) | cork cambium |
| | B) | phloem |
| | C) | cork |
| | D) | all of the above |
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| 60 | |
The _____ produced by the vascular cambium builds up to become the annual rings in a woody stem. |
| | A) | cork |
| | B) | pith |
| | C) | secondary xylem |
| | D) | phloem |
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| 61 | |
Cork cambium is meristem located beneath the epidermis. |
| | A) | True |
| | B) | False |
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| 62 | |
In older trees, the inner annual rings, called the _____, no longer function in water transport. |
| | A) | heartwood |
| | B) | sapwood |
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| 63 | |
Gas exchange through the bark is possible at pockets of loosely arranged cork cells called lenticels. |
| | A) | True |
| | B) | False |
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| 64 | |
Bulbous underground stems are called _____. |
| | A) | corms |
| | B) | stolons |
| | C) | both A and B |
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| 65 | |
Stems are modified in some plants to _____. |
| | A) | vegetatively reproduce |
| | B) | store food |
| | C) | climb |
| | D) | all of the above |
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| 66 | |
The opening and closing of the stomates is regulated by their guard cells. |
| | A) | True |
| | B) | False |
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| 67 | |
Photosynthesis takes place in the _____ tissue of the leaves. |
| | A) | vascular |
| | B) | epidermal |
| | C) | mesophyll |
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| 68 | |
The amount of surface area for gas exchange is increased by the arrangement of the cells in the _____ mesophyll. |
| | A) | palisade |
| | B) | spongy |
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| 69 | |
Stomates are concentrated in the _____ epidermis of the leaves. |
| | A) | lower |
| | B) | upper |
| | C) | both A and B |
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| 70 | |
A leaf consists of _____. |
| | A) | a flattened blade |
| | B) | a petiole that connects the leaf to the stem |
| | C) | both A and B |
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| 71 | |
When a leaf has a blade composed of two or more leaflets, the leaf is called a compound leaf. |
| | A) | True |
| | B) | False |
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| 72 | |
The leaves of a cactus are the spines attached to the succulent stem. |
| | A) | True |
| | B) | False |
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| 73 | |
An example of a plant with thick, fleshy petioles is _____. |
| | A) | an onion |
| | B) | celery |
| | C) | a turnip |
| | D) | cabbage |
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| 74 | |
Leaves are modified in some plants to _____. |
| | A) | trap insects |
| | B) | climb |
| | C) | conserve water |
| | D) | all of the above |
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| 75 | |
Most people are surprised to learn that onions are leaves not roots. |
| | A) | True |
| | B) | False |
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| 76 | |
Rhizomes _____. |
| | A) | are above ground roots |
| | B) | may have fungal parasites called mycorrhizae living in it |
| | C) | are underground horizontal stems |
| | D) | none of the above |
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