Grade 5 UNIT 2. 2 PLANT STRUCTURE

Multiple Choice

Plant roots have extensions called root hairs. These root hairs are important in the homeostasis of the plant. Which statement best explains the importance of the root hairs to the stems and leaves of the plant?

• root hairs convert minerals into glucose for immediate use by cells

• root hairs decrease the need for osmosis and diffusion in vascular tissue

• root hairs prevent water loss in leaves through transpiration and gas exchange

• root hairs increase the surface area of the roots for nutrient and water absorption

Multiple Choice

What is the function of the root hairs in plants?

• To absorb sunlight

• To absorb water and minerals

• To protect the root

• To store food

Multiple Choice

What are the main differences between fibrous roots and taproots?

• Fibrous roots are deep, taproots are shallow

• Fibrous roots branch out, taproots grow deep

• Fibrous roots absorb less water, taproots absorb more

• Fibrous roots are thicker than taproots

Multiple Choice

What are aerial roots and how do they function?

• They grow underground

• They grow above ground

• They are used for storage

• They are used for reproduction

Multiple Choice

"How does the stem help a plant feed itself?"

• by collecting air
• by collecting sunlight
• by taking nutrients to the roots
• by bringing water to the leaves

Multiple Choice

What are herbaceous stems and what are their characteristics?

• They are hard and woody stems

• They are thin green stems that can bend easily

• They do not contain chloroplasts

• They are only found in trees

Multiple Choice

What are woody stems characterized by?

• They are flexible and green

• They are thick and strong

• They contain chloroplasts

• They are thin and weak

Multiple Choice

Which part of a woody stem is considered a part of the bark?

• the pith

• the phloem

• the xylem

• vascular cambium

Multiple Choice

What do some plants' stems store?

• Water

• Food

• Air

• Nutrients

Multiple Choice

What is the function of the cuticle in leaves?

• To absorb sunlight

• To prevent water loss

• To provide structural support

• To facilitate gas exchange

Multiple Choice

Look at the image, what is the area in the middle of the image on the left called?

• guard cells

• stomatal opening

• cell wall

• nucleus

Multiple Choice

What is the function of the palisade layer in leaves?

• To provide structural support

• To store water

• To carry nutrients

• To perform photosynthesis

Multiple Choice

What are the products of photosynthesis?

• Water

• Sugar

• Oxygen

• Carbon Dioxide

Multiple Choice

What are the key characteristics of the flowers depicted in the images?

• Color

• Size

• Type

• Fragrance

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident