8th Unit 2 Organisms as Systems, Lesson 2 Plant Bodies as Sy

What part of a plant’s leaves allows the plant to take in carbon dioxide and release oxygen?

• chloroplasts

• stem

• cuticle

• stomata

Plants contain xylem and phloem tissue. What organ system in animals performs a similar function as the xylem and phloem of plants?

• digestive system

• circulatory system

• execratory system

• respiratory system

A cactus is covered with a waxy layer to prevent water loss. Which type of tissue is this?

• connective

• dermal

• ground

• vascular

A plant leaf is an organ. In what way is a human lung similar to a plant leaf?

• Both organs are made up of only one kind of cell.

• Both organs exchange oxygen and carbon dioxide.

• Both organs make chemical energy.

• Both organs are made up of protective dermal tissue.

A student is studying flowering plants in her science class. She creates a poster to diagram the different plant parts about which she has learned.

Taken together, all of the plant parts the student studied make up which level of organization?

• organism

• cells

• organs

• organ system

Plant bodies can respond to changes in their environmental conditions. How does a plant regulate water in its body?

• through wilting and dropping leaves

• through the opening and closing of stomata

• by photosynthesizing more energy

• by growing toward a light source

During which process do plants capture light energy and carbon dioxide and use them to produce glucose?

• cellular respiration

• fertilization

• reproduction

• photosynthesis

A change in the direction of plant growth in response to gravity is called _________________.

• magnetism

• graviationalism

• geotropism

• photoism

A leaf is the plant's main site of photosynthesis. What level or organization is a leaf?

• Cell

• Organ

• Organ System

• Organism

Roots and Stems are organs that help make up which system for the plant?

• circulatory

• respiratory

• digestive

• cardiovascular