Podcast
Questions and Answers
Which of the following is NOT an adaptive feature of roots for the absorption of water and minerals?
Which of the following is NOT an adaptive feature of roots for the absorption of water and minerals?
Phloem is responsible for the transport of water and minerals in plants.
Phloem is responsible for the transport of water and minerals in plants.
False
What is the role of mitochondria in root hair cells?
What is the role of mitochondria in root hair cells?
To supply energy for active transport of minerals from the soil.
The _____ transports organic nutrients in plants.
The _____ transports organic nutrients in plants.
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Match the following functions with the correct vascular tissue:
Match the following functions with the correct vascular tissue:
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Where are vascular bundles primarily located in the stems of flowering plants?
Where are vascular bundles primarily located in the stems of flowering plants?
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In roots, vascular bundles are found at the outer region to provide better strength.
In roots, vascular bundles are found at the outer region to provide better strength.
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What tissue lies at the top of phloem in the vascular bundles of leaves?
What tissue lies at the top of phloem in the vascular bundles of leaves?
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The arrangement of vascular bundles gives greater mechanical strength to the __________ of the stems.
The arrangement of vascular bundles gives greater mechanical strength to the __________ of the stems.
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Match the parts of flowering plants with their vascular tissue locations:
Match the parts of flowering plants with their vascular tissue locations:
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Which structure in a dicotyledonous root is responsible for water absorption?
Which structure in a dicotyledonous root is responsible for water absorption?
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Water absorption occurs solely through the xylem in plant roots.
Water absorption occurs solely through the xylem in plant roots.
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What are the three routes through which water travels in the cortex of plant roots?
What are the three routes through which water travels in the cortex of plant roots?
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Water moves from cell to cell through the ________ of cells by osmosis in the cortex.
Water moves from cell to cell through the ________ of cells by osmosis in the cortex.
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Match the structure of the root with its function:
Match the structure of the root with its function:
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Which of the following statements is true regarding the arrangement of vascular bundles in dicot stems?
Which of the following statements is true regarding the arrangement of vascular bundles in dicot stems?
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Removing a ring of bark in a tree affects the transport of water but not organic food.
Removing a ring of bark in a tree affects the transport of water but not organic food.
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Why does sugar accumulate in the tissue just above the ring after a few weeks?
Why does sugar accumulate in the tissue just above the ring after a few weeks?
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The __________ factor contributes to reduced stem swelling during winter months due to a decrease in sugar production.
The __________ factor contributes to reduced stem swelling during winter months due to a decrease in sugar production.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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What structural change allows xylem vessels to withstand the negative pressure of transpiration pull?
What structural change allows xylem vessels to withstand the negative pressure of transpiration pull?
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All xylem vessel cells contain a nucleus that supports metabolism.
All xylem vessel cells contain a nucleus that supports metabolism.
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What relationship exists between the rate of transpiration and the diameter of the stem?
What relationship exists between the rate of transpiration and the diameter of the stem?
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Sieve tubes are formed from plant cells with modified end walls called __________.
Sieve tubes are formed from plant cells with modified end walls called __________.
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Match the following vascular tissues to their primary functions:
Match the following vascular tissues to their primary functions:
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Which route do most plants utilize for water movement due to the least resistance?
Which route do most plants utilize for water movement due to the least resistance?
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Nitrate ions are absorbed into root hair cells by diffusion only.
Nitrate ions are absorbed into root hair cells by diffusion only.
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What happens to the water potential of root hair cells when water is drawn away to neighboring cortical cells?
What happens to the water potential of root hair cells when water is drawn away to neighboring cortical cells?
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Applying too much fertilizer increases the mineral concentration in the soil, which lowers the _____ potential.
Applying too much fertilizer increases the mineral concentration in the soil, which lowers the _____ potential.
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Match the ions with their respective absorption processes:
Match the ions with their respective absorption processes:
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What process allows water to be absorbed into the roots of a plant from the soil?
What process allows water to be absorbed into the roots of a plant from the soil?
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Translocation is a passive process that does not require energy from the plant.
Translocation is a passive process that does not require energy from the plant.
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What substance accumulates in the tissue just above a ring cut into the bark of a tree?
What substance accumulates in the tissue just above a ring cut into the bark of a tree?
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Xylem is responsible for the transport of ________ and minerals from the roots to other parts of the plant.
Xylem is responsible for the transport of ________ and minerals from the roots to other parts of the plant.
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Match the following processes with their corresponding descriptions:
Match the following processes with their corresponding descriptions:
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Study Notes
The Ringing Experiment
- Vascular bundles in dicot stems are arranged in a ring at the periphery.
- Phloem is located in the outer ring, while xylem in the inner region.
- Carbohydrates are continuously produced in the leaves of the tree by photosynthesis.
- Carbohydrates are converted to sugar (sucrose), but the downward transport of the sugar was stopped by removing phloem.
- Sugar accumulated in the tissue just above the ring.
- Swelling of the stem was less prominent during winter due to fewer leaves and less sunlight, causing less sugar production.
- Less sugar transported down the stem as a result.
- The photo depicts a hollow tree in Hong Kong, where the tree trunk has rotted away.
- Water and organic food are still transported between roots and leaves, as phloem remains unaffected.
- The tree is still alive and growing.
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Description
Test your knowledge on the adaptive features of plant roots and the functions of vascular tissues. This quiz covers the role of mitochondria in root hair cells, the transport of nutrients, and the arrangement of vascular bundles. Challenge yourself with matching functions and locations within flowering plants.