Question

Fill in each blank, or draw a line under the correct answer.

(23) The
upper
epidermis of a leaf, which is a single layer of cells, is
transparent and allows light to pass through to the layers below, where photosynthesis occurs.
a waxy coating secreted by the
(24) Some leaves have a
(25) Tiny pores in the upper epidermis called (petioles, phloem, xylem, stomata)
epidermis, which provides additional protection from water loss and from too much water intake
allow water and gases to pass in and out of a leaf.
(26) Bean-shaped
cells regulate
the flow of gases and water by opening and closing the stoma.
(27) Thin-walled cells that specialize to perform specific functions, such as photosynthesis, food
storage, and structural support, are called (guard, parenchyma, alternate, phloem) cells.
(28) Most photosynthesis takes place in the mesophyll's (palisade, spongy, epidermal, cuticle) laye
because the tall, narrow parenchyma cells contain numerous
(29) The
layer of the mesophyll is made up of loosely arrang
and irregularly shaped parenchyma cells that support the palisade layer and store nutrients.
connect with intercellular spaces
(30) Stomata in the lower
spongy layer of the mesophyll and allow gases to flow to and from the palisade layer.
(31) Water and minerals necessary for plant growth pass from the (chloroplast, xylem, phloem,
into surrounding plant cells.

Answer 1

23) a cuticle

24) Some leaves are attached to the plant stem by a petiole.

25) stomate, also called stoma, plural stomata or stomas

26) Guard cells

27) parenchyma

28) palisade parenchyma cells

29) spongy parenchyma

30) The air space found between the spongy parenchyma cells allows gaseous exchange between the leaf and the outside atmosphere through the stomata

31) Xylem tissue

Step-by-step explanation: