AP BIOLOGY

PLANTS

PLANT TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A permanent tissue is described as complex tissue when it has ____
A
one type of cells, performing two or more different functions
B
more than one type of cells, performing different functions
C
one type of cells, performing one function
D
more than one type of cells, performing one common function
Explanation: 

Detailed explanation-1: -Complex permanent tissue is defined as a collection of structurally dissimilar cells performing a common function or set of functions. They are made up of more than one type of cells. They are of two types xylem and phloem. Xylem is the chief water conducting tissue of the plants.

Detailed explanation-2: -Complex tissues are those that are formed of more than one type of cells. Xylem is made up of tracheids, tracheae, xylem parenchyma and xylem fibers. Phloem is composed of sieve elements, companion cells, phloem parenchyma and phloem fibers. Hence xylem and phloem are called complex tissues.

Detailed explanation-3: -Complex permanent Tissue It transports water and nutrients from the roots to the leaves of the plant. It provides support to the plants. It is divided into-tracheids, vessels, xylem fiber, and xylem parenchyma.

Detailed explanation-4: -Simple permanent tissue In simple permanent tissues, cells are similar in structure, origin, and function. There are three types of simple permanent tissue namely Parenchyma, Collenchyma, and Sclerenchyma.

Detailed explanation-5: -Final answer: Complex tissue is made up of more than one type of cell.

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