Plant Biology Quiz

Which vascular tissue distributes organic nutrients like sugar?

• xylem

• mesophyll

• phloem

• stomata

Which vascular tissue carries water upward from the roots?

• xylem

• mesophyll

• phloem

• stomata

The giant redwood (Sequoia semperviren) can grow to heights of 379 feet. Every cell in these trees has the same need of water in order to survive and carry out cellular processes. How does water get from the ground to the top of a giant redwood?

• Water is carried up the tree in the fur of small animals and deposited at the top

• Pollinators deposit water into the top of the plant that they drank on the ground

• Water is absorbed in the roots and carried up the tree

• The roots grow up the side of the tree to make water delivery more efficient

Common ivy (Hedera helix) is a plant that can grow on walls. Ivy climbs by means of aerial roots which adhere to the surfaces it grows on. The demonstrates -

• phototropism

• thigmotropism

• gravitropism

• hydrotropism

The shoot system of the plant shown to the left demonstrates which of the following tropisms?

• negative geotropism

• positive phototropism

• positive geotropism

• negative phototropism

The Venus flytrap (Dionaea muscipula) is a carnivorous plant that quickly responds to the presence of insects when they crawl across the surface of its specialized leaves. This quick response to the touching of the plant is called –

• photosynthesis

• gravitropism

• hydrotropism

• thigmonasty

Plants respond to stimuli like light and gravity primarily because of the distribution of –

• water

• auxins

• ribosomes

• stomata

The plant shown to the left demonstrates which of the following tropisms?

• negative phototropism

• positive phototropism

• positive thigmotropism

• negative thigmotropism