Transport in Plants

Poll

How are you feeling today?

• I am feeling tired today.
• I am feeling confused today.
• I am feeling anxious today.
• I am feeling good today.

Open Ended

Why do you feel so?

Poll

How focused do you feel for today’s lesson?

• Moderately focused
• Slightly confused
• Extremely distracted
• Not focused at all

Poll

What’s your energy level like right now?

• High — I feel energetic
  

• Medium — I feel okay

• Low — I feel a bit tired

• Very low — I need a break

Open Ended

What help do you need most to have a good lesson today?

Open Ended

The celery stalk shown here was placed in a cup of water with red food dye. Why did the leaves turn red and the base of the stalk appear to have red dots?

Multiple Choice

What does a group of xylem vessels form within a plant?

• An organ
• A cell
• An organism
• A tissue

Multiple Choice

What are the main components of xylem as shown in the images?

• Elongated living cells

• Lignin

• Chloroplasts

• Cellulose

Open Ended

List the features of xylem that make it suitable for doing the water transport

Multiple Choice

What is the function of lignin in xylem vessels?

• To provide flexibility

• To reinforce the vessels

• To transport nutrients

• To store water

Multiple Choice

Plants have phloem which carry substances in which direction?

• up

• down

• up and down

Open Ended

Explain the difference between the Xylem and the Phloem. Identify which is which in the diagram below.

Multiple Choice

What is the function of sieve plates with sieve pores in phloem sieve tube elements?

• Allows for continuous movement of organic substances

• Strengthens the wall to withstand hydrostatic pressures

• Maximises space for movement of assimilates

• Reduces friction to facilitate movement of assimilates

Multiple Choice

Which of the following are true of phloem tissue?

I. plasmodesmata separate each sieve element

II. companion cells contain many mitochondria for active transport

III. the lumen of sieve elements has no organelles

• I and II only

• I and III only

• II and III only

• I, II and III

Multiple Choice

What is the function of the companion cell in relation to the sieve tube element?

• Transport nutrients

• Support structure

• Store energy

• Regulate water

Open Ended

Name this structure, complete these missing labels!

Multiple Choice

which tissue provide support and mechanical strength to the plant?

• parenchyma tissue
• sclerenchyma tissue
• xylem tissue
• collenchyma tisssue

Multiple Choice

What are the key differences between xylem and phloem in terms of living cells, substances transported, and process of transportation?

• Living cells

• Substances transported

• Process of transportation

• Direction of flow

Open Ended

What are some adaptions you think plants would need to live on land that they would not have needed to live in water?

Open Ended

Describe the structure of this leaf, compare to the mesophyte leaves!

Multiple Choice

What adaptations do Marram Grass leaves have to minimize water loss?

• Leaves can roll up to reduce wind exposure

• Leaves have a thin cuticle

• Leaves have more stomata

• Leaves absorb more water

Multiple Choice

The loss of water in plants is called?

• evaporation
• condensation 
• transpiration
• transportation

Multiple Choice

In the tropical rainforest it rains daily, so which of the following would be most likely.

• The guard cells would close the stomata to conserve water.

• The guard cells would open the stomata so that transpiration could take place.

• The turgor pressure would be low because of the lack of water.

Multiple Choice

Some plants have small leaves that help them do which of these?

• grow tall
• save water
• make seeds
  make seeds
• fall off in winter

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident