Unit 12: Plants and Ecology

Growth of plant towards light

• gravitropism

• phototropism

• thigmotropism

The tiny opening on the plant that lets air in and holds water in is called the ___________________.

• guard cell

• stomata

• petal

• cuticle

The waxy waterproof layer on the leaves and some stems of plants is called the _________________.

• root

• stomata

• petal

• cuticle

Growth of plant in response to touch

• gravitropism

• phototropism

• thigmotropism

Growth of plant towards or away from gravity

• gravitropism

• phototropism

• thigmotropism

The vascular tissues of the plant are the ____________ which brings water up to from the roots of the plant and the _______________ which brings nutrients from the leaves to other parts of the plant

• xylem, phloem

• phloem, xylem

• stomata, guard cell

• guard cell, stomata

The stalks in a flower that produce the male reproductive cells

• pistil
• stamen
• filament
• stigma

Small grains that contain a plant's male reproductive cells.

• stamen
• pollen
• anther
• stigma

Small leaf-like structures forming an outer circle at the base of a flower.

• petals
• sepal
• anthers
• dicots

The part of the flower on which the pollen grains land.

• pistil
• stamen
• style
• stigma