The Leaf as an Organ (Grade 10 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines an organ in biological terms?
What defines an organ in biological terms?
Different tissues working together
Which three tissue types make up a leaf?
Which three tissue types make up a leaf?
Epidermis, mesophyll, vascular tissue
What is a key function of the epidermis?
What is a key function of the epidermis?
Protects against excessive water loss
How are palisade layer cells arranged?
How are palisade layer cells arranged?
Tall, column-like, vertically arranged
What is the main purpose of air spaces in spongy mesophyll?
What is the main purpose of air spaces in spongy mesophyll?
Facilitate movement of gases
What does xylem transport in leaves?
What does xylem transport in leaves?
Water and dissolved minerals upward
What are stomata?
What are stomata?
Microscopic pores for gas exchange
Why does oxygen move out of the leaf?
Why does oxygen move out of the leaf?
Higher concentration inside than outside
When do stomata typically open?
When do stomata typically open?
When light is high & humidity adequate
How does palisade layer thickness vary with light exposure?
How does palisade layer thickness vary with light exposure?
Thicker in bright, thinner in shade