Plants Review

Nutrients in the soil such as phosphorus and potassium play an important role in plant reproduction. Which

statement describes how the root and shoot systems of plants interact to allow reproduction to occur?

• Nutrients are produced in the roots when compounds are broken down in the shoot system.

• Nutrients are absorbed by the roots and transported to reproductive tissues by the shoot system.

• Nutrients are stored in the shoot system for later use by reproductive tissues in the root system.

• Nutrients are transported from the shoot system to the root system for storage.

When two trigger hairs of a Venus flytrap are touched, the two halves of the leaves close. What systems in the

plant are most likely responsible for the movement of the Venus flytrap?

• The nervous system triggers the plant’s feedback response to close

• The muscular system contracts when stimulated causing the closure

• The reproductive system releases hormones that cause the leaves to close

• The vascular system rapidly moves water in the leaves causing it to close

What causes the plant to bend toward the light?

• The hormone auxin causes cells on the shady side of the plant to elongate.

• The hormone auxin causes cells on the lighted side of the plant to elongate.

• The hormone auxin causes cells on the shady side of the plant to shrink.

• The hormone auxin causes cells on the lighted side of the plant to shrink.

The picture depicts a plant's growth in response to an external stimulus, or tropism.

Which column accurately defines the plant's response to being upside down, as well as the feedback initiated to

guide both the root and stem growth?

• Q

• R

• S

• T

The internal transport of water and minerals in plants requires that two systems work together. Which diagram

correctly describes how the two systems accomplish this?

• 
• 
• 
• 

A plant’s shoot system and root system interact through specialized tissues. The main function of the xylem is to -

• transport sugars down the plant from the leaves

• transport water and minerals up from the roots

• allows gas exchange on the ventral side of the leaf

• form a protective layer on the outside of annual plants

Which of the following best describes the interaction that occurs between a plant’s reproductive parts during self

-fertilization?

• Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows

  through the style. The pollen tube reaches the filament, where the sperm fertilizes the egg.

• Pollen moves from the ovule up through the style and is released from the stigma. The pollen is

  transferred to the anther, where the sperm fertilizes the egg.

• Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows

  through the style. The pollen tube reaches an ovule within the ovary, where the sperm fertilizes the

  egg.

• Pollen is released from the stigma and is transferred to the anther. A pollen tube grows down from the

  anther through the filament and fuses with the ovule, where the sperm fertilizes the egg.

What is the term for plant vascular tissue that moves food downward from the leaves to the stem and roots?

• xylum

• meristem

• phloem

• epidermis

The thick, waxy layer on the outside of leaves is most likely part of the —

• Dermal system

• Shoot system

• Vascular system

• Reproductive system

A climbing vine is able to coil around an object it touches. This occurs because the hormone auxin causes the cells

on the side of the vine not touching the object to grow faster than the cells on the side of the vine touching the

object.

The response that causes the vine to climb is known as —

• gravitropism

• hydrotropism

• phototropism

• thigmotropism