Unit 5 (Photosynthesis) - EQ3 What role do plants play in our ecosystems?
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- Q1
What is the main function of xylem tissue?
Producing energy for the plant
Transporting water and nutrients
Storing water and nutrients
Protecting the plant from pathogens
60s - Q2
What is the process called when water moves from the roots to the leaves through xylem and exits the leaf through the stomata?
respiration
transpiration
osmosis
photosynthesis
60s - Q3
Xylem transports water and minerals in both upward and downward directions.
falsetrueTrue or False60s - Q4
What is the main function of phloem tissue?
Production of energy for the function of life
Protection against plant-born pathogens
Transportation of sugars and other macronutrients
Storage of water and dissolved minerals for a reserve during a drought
60s - Q5
Phloem transports substances only in upward direction.
falsetrueTrue or False60s - Q6
What is the major difference between xylem and phloem?
Xylem transports water and minerals, while phloem transports sugars and organic compounds.
Xylem and phloem have the same function of transporting sugars and organic compounds.
Xylem transports sugars and organic compounds, while phloem transports water and minerals.
Xylem and phloem both transport water and minerals.
120s - Q7
Match the following:
Users link answersLinking120s - Q8
When the forces of cohesion and adhesion work together, water can move up the plant against the force of gravity by....
Capillary Action
Phototropism
Geotropism
Photosynthesis
120s - Q9
Why would plants need to move substances internally?
To prepare food and distribute nutrients
To change color
To grow taller
120s - Q10
Link the following:
Users link answersLinking120s - Q11
Some trees shed their leaves in time for winter. Why is this adaptation useful?
The trees take in more sunlight through their branches.
The trees blend into their environment and hide.
The trees attract animals to spread their seeds.
The trees save energy during the darker, colder months.
120s - Q12
If the xylem in a young tree is damaged, which process is first affected?
transporting water to the leaves
performing photosynthesis
performing cellular respiration
transporting sugar to the roots
60s - Q13
An elephant tree is a type of tree that thrives in a desert climate. This tree has adapted over several years to survive in areas with little water, intense sunlight, and temperature extremes.
Which adaptation to a dry climate most helps the elephant tree continue to grow by reducing the loss of moisture?
They only open their leaf pores, or stomata, at night to allow an exchange of gases with the atmosphere. The plants store the gases absorbed at night until the next day's sunlight makes it possible for photosynthesis to occur.
Their roots spread out near the surface of the soil to more efficiently collect water. On the rare occasions when it rains, plants like the elephant tree are also able to store water in their trunks and branches.
300s - Q14
What is the driving force of the water within xylem vessels to move toward the top of a tree?
atmospheric pressure on the roots pushes the water up
the roots absorption of water forces water out of the leaf
transpiration of water vapor out of the stomata
120s - Q15
The diagram below represents a cross-section of a leaf of a green plant, showing an opening (stomate) in the lower surface. Which TWO of the following explain the benefit of the stomata being at the bottom of the leaf, not the top?
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