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On the tip of the root, the apical meristem forms the ________, which prevents the meristem from being worn away as it pushes through the soil.
– cortex
– root cap
– epidermis
– endodermis
– pericycle
1 Answer Under the influence of hormones, branch roots emerge from the ________ of a growing root.
– central cylinder
– endodermis
– epidermis
– Casparian strip
– pericycle
1 Answer The location of the pericyle is best described as:
– the outermost layer of the vascular cylinder.
– just beneath the epidermis.
– adjacent to the apical meristem.
– lining the cells of the endodermis.
– between layers of primary xylem and primary phloem.
1 Answer Root hairs develop from the:
– Casparian strip.
– pericycle.
– cortex.
– endodermis.
– epidermis.
1 Answer Most of a carrot, a root adapted for carbohydrate storage, is:
– endodermis.
– phloem.
– xylem.
– pericycle.
– cortex.
1 Answer In leaves, chloroplasts are found in _____.
– xylem
– palisade mesophyll
– phloem
– cuticle
1 Answer Which of the following makes up most of an old tree trunk?
– secondary xylem
– primary phloem
– meristem tissue
– primary xylem
– secondary phloem
1 Answer Which of these tissues is between the epidermis and the vascular bundle in a young dicot stem?
– phloem
– pith
– cortex
– ground tissue
– xylem
1 Answer In a dicot stem, the ________ is between the vascular cambium and the cork cambium.
– vascular cambium
– phloem
– vascular cylinder
– cork
– xylem
1 Answer How is the supply of vascular cambium maintained?
– by the differentiation of apical meristem
– by the differentiation of secondary xylem
– by the division of its cells
– by the differentiation of cork
– by the differentiation of secondary phloem
1 Answer
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