Biology U2 L7 - Plant Cells And Tissues

Front 1

Name the three types of plant cells

Back 1

parenchyma, collenchyma, and sclerenchyma

Front 2

What are parenchyma cells?

Back 2

The most abundant type of cell in plants, they make food by photosynthesis and store food in a large central vacuole. Their walls are thin and flexible so the cells have different shapes.

Front 3

Identify and analyze the function of vascular tissue. Name the two different types of vascular tissue.

Back 3

Vascular tissue transports water, food, and dissolved minerals throughout the plant. Xylem and phloem.

Front 4

What are sclerenchyma cells?

Back 4

Cells with very thick walls. These cells usually die at maturity but the walls still support the plant.

Front 5

What are collenchyma cells?

Back 5

Long cells with unevenly thick walls, which stretch as the cells grow. They are found in the areas of the plant which are growing. They provide strength and support to the plant.

Front 6

Explain the function of stomata.

Back 6

Stomata control the exchange of gases (carbon dioxide, oxygen, water vapor)

Front 7

Identify and indicate where the apical meristems would be located on a plant. How do they function differently from lateral meristems in the development of a plant?

Back 7

Apical meristems are found at the tips of stems and roots. Lateral meristems increase stem and root diameter; apical meristems increase root and stem length.

Front 8

Explain what type of plant cell you would expect to find in the photosynthetic tissue of a leaf. What is another name for the photosynthetic tissue?

Back 8

parenchyma; because it can contain chloroplasts, but sclerenchyma and collenchyma do not; ground tissue

Front 9

Compare and contrast the cells that make up the xylem and the phloem.

Back 9

Xylem and phloem are both composed of cylindrical cells. Xylem cells are dead at maturity and can be vessel elements (open cells) or tracheids (closed cells), whereas phloem cells are alive and grow end to end.

Front 10

in plants, the outermost layer of flattened cells that covers and protects all parts of the plant.

Back 10

epidermis

Front 11

openings in leaf tissues that control gas exchange

Back 11

stomata

Front 12

cells that control the opening and closing of the stomata; regulate the flow of water vapor from leaf tissue.

Back 12

guard cells

Front 13

hairlike projections that extend from a plant's epidermis; help reduce water evaporation and may provide protection from herbivores.

Back 13

trichome

Front 14

vascular plant tissue composed of tubular cells that transport water and dissolved minerals from the roots to the rest of the plant

Back 14

xylem

Front 15

tubular cells in the xylem that have closed ends and are dead at maturity.

Back 15

tracheids

Front 16

hollow, tubular cells in the xylem; conduct water and dissolve minerals from the roots to the stem; have open ends through which water passes freely from cell to cell.

Back 16

vessel element

Front 17

vascular plant tissue made up of tubular cells joined end to end; transports sugars to all parts of the plant.

Back 17

phloem

Front 18

tubular cells in phloem; each cell lacks a nucleus.

Back 18

sieve tube members

Front 19

nucleated cells that help transport sugars and other organic compounds through the sieve cells of the phloem.

Back 19

companion cell

Front 20

lateral meristem that produces new xylem and phloem cells in the stem and roots.

Back 20

vascular cambium

Front 21

regions of actively dividing cells in plants

Back 21

meristem

Front 22

regions of actively dividing cells near the tips of roots and stems; allows roots and stems to increase in length.

Back 22

apical meristem

Front 23

lateral meristem that produces a tough protective covering for the surface of stems and roots.

Back 23

cork cambium