Tissues

Phloem, one of the two types of vascular tissues, is composed of cells that

A. function when dead

B. function when alive

C. conduct water and minerals

D. support the plant

E. lose their end walls

What types of cells make up the photosynthetic tissue in leaves? How are they arranged in most leaves?

What are the four main tissue types?

The apoplast and symplast are two regions of the plant that serve as pathways for water and solute transport over both short and long distances These pathways are represented by the arrows in the diagram below, which shows three adjacent cells in a leaf or root. Sort each statement into the appropriate bin.

The outermost cell layer of plants is the

a. root hair

b. endodermis

c. vascular cylinder

d. epidermis

Which of the following cells are phloem cells?

a. guard cells

b. companion cells

c. vessels

e. tracheids

At maturity, which of the following is non- nucleated?

a. palisade cell

b. cortical cell

c. sieve cell

d. companion cell

Which of the following is not true about ‘sclereids’?

a. these are groups of living cells

b. these are found in nut shells, guava pulp, pear

c. these are also called stone cells

d. these are a form of sclerenchyma with fibres

Which of the following plant cells will show totipotency

a. sieve tubes

b. xylem vessels

c. meristem

d. cork cells

Which is correct about transport of conduction of substances?

a. organic food moves up through phloem

b. organic food moves up through xylem

c. inorganic food moves upwardly and downwardly through xylem

d. organic food moves upwardly and downwardly through phloem

Cork cambium and vascular cambium are

a. parts of secondary xylem and phloem

b. parts of pericycle

c. lateral meristem

d. apical meristem

Cork is formed from

a. cork cambium 

b. vascular cambium

c. phloem

d. xylem

Pericycle of roots produces

a. mechanical support

b. vascular bundles

c. lateral roots

d. adventitious roots