Do you know the important tissues in plants?
Plant Tissues, Organs and Systems Quiz
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Which plant tissue is responsible for transporting water and mineral ions from the roots to the stems and leaves?
Which cells are adapted for the efficient uptake of water by osmosis and mineral ions by active transport?
Put the tissues in order from the top, outside of the leaves to the inside.
- Palisade mesophyll
- Spongy mesophyll
- Epidermal tissue
In plants, what is the main role of meristem tissue found at the growing tips of shoots and roots?
Fill in the blanks to identify tissues and organs of plants:
Spongy mesophyll –
Palisade mesophyll –
The xylem, phloem, roots, shoots and leaves are collectively an organ system. What is the name of this system?
What is the primary function of the epidermis in plants?
The epidermis in plants is usually , allowing light to pass through and reach the mesophyll.
Which tissue is immediately below the epidermis of plant leaves and is the major site of photosynthesis?
What is the primary role of spongy mesophyll tissue in plant leaves?
Stomata, surrounded by cells, are primarily located on the underside of leaves, close to mesophyll cells.
Why are roots typically white in colour?
What does the term ‘shoot’ in plants refer to?
Which of the following is not a function of a leaf?
What are the primary functions of roots in plants?
What is the primary function of a leaf?
Xylem, water, phloem, lignin, keratin, enamel
Complete the sentence: vessels are rigid due to dead cells supported by this prevents them from bursting due to high pressure.
How do the cells that open and close stomata work?
Which of the following are adaptations that help roots absorb water and mineral ions?
Plant Tissues - Types and Functions
- Epidermal Tissue: The outermost layer of cells in plants, providing a protective barrier against mechanical injury, water loss, and infection. It’s typically one cell thick, covered with a waxy, waterproof cuticle to reduce water loss.
- Palisade Mesophyll: Located just below the epidermal layer, these chloroplast-rich cells are the primary site for photosynthesis. Their elongated shape enhances sunlight absorption.
- Spongy Mesophyll: Situated beneath the palisade layer, these cells are loosely arranged with air spaces between them, facilitating gas exchange and aiding photosynthesis.
- Xylem and Phloem: The plant’s vascular tissues. Xylem transports water and minerals from roots to other plant parts, while phloem distributes nutrients like glucose. Xylem also contributes to structural support.
- Meristem Tissue: Found at the growing tips of shoots and roots, responsible for plant growth. These cells rapidly divide and can differentiate into various plant cell types.
Plant Organs - Types and Functions
- Leaves: Essential for photosynthesis and water management. They absorb water from the soil, and stomata regulate water release and gas exchange.
- Shoots: Comprising the stem, leaves, and buds. The meristem at the shoot tip produces new cells for growth towards light, while the outer layer consists of protective epidermal cells.
- Roots: Typically underground, roots do not perform photosynthesis as they lack chloroplasts. Their functions include water and mineral absorption, plant anchoring in soil, and sometimes starch storage. The meristem at the root tip aids in growth, and root hair cells enhance water absorption.
Check out our other quiz on Transpiration and Translocation to learn more about how substances move around plants and the role of xylem and phloem.