Penn Foster Vet Tech Biology-Plant
Structure and Function Exam Q&A 100%
Solved
Meristem cells/tissues - First cells when a plant embryo begins to
develop; cells organize themselves into tissues
Apical meristems - Tissues located at the ends of a plant; have 3 types
of specialized tissues: epi...
Parenchyma cells - ✔✔Type of simple ground tissue; has thin walls, are
active in photosynthesis and storage.
, collenchyma cells - ✔✔Type of simple ground tissue; provides support for
primary tissues, has irregularly shaped corners and thicker cell walls.
sclerenchyma cells - ✔✔Type of simple ground tissue; fibrous cells that
give stalks their gravity-resisting strength.
Vascular tissue - ✔✔Tissue that extends from the root through the stem to
the leaves, and vice versa; 2 types of vascular tissues: xylem and phloem.
Xylem and Phloem - ✔✔2 types of vascular tissue in vascular plants
Xylem - ✔✔Type of vascular tissue in plants; transports water and minerals
from roots to leaves; contains two types of conducting cells: vessel
elements and tracheids.
vessel elements and tracheids - ✔✔Two types of conducting cells in Xylem;
dead at maturity, cell walls interconnect to form pipelines for water flow.
Phloem - ✔✔Type of vascular tissue in plants; transports sugar, in the form
of sucrose, and other organic compounds such as hormones, often from
leaves to roots; conducting cells are called sieve-tube members and have a
cluster of pores in their end walls collectively known as a sieve plate.
sieve tube members - ✔✔The conducting cells of phloem; collectively
known as a sieve plate; each one has a companion cell.
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