Plants & Photosynthesis
T
Limiting Factors and Plant Transport
Push a bit harder. Apply what you know to less familiar problems.
Combined Science · Medium
5
questions · ~4 min · 3 hints each (−5 pts)
Confidence tracking, 3-tier hints and instant feedback.
What you'll learn
Each question helps you build key knowledge and skills.
- 1Light intensity, carbon dioxide concentration, and temperature are limiting factors of photosynthesis.
- 2Iodine solution tests for starch: it turns blue-black if starch is present, showing photosynthesis has occurred.
- 3Xylem transports water and minerals upward from roots to leaves; phloem transports sugars (glucose) around the plant in both directions.
- 4Root hair cells have a large surface area to absorb water and minerals by osmosis and active transport.
Question mix
A mix of question types to build your skills.
- Multiple choice×3
- Fill the gap×1
- True / False×1
Different question types help you think in different ways.
How it works
A simple 3-step process
- 1
Rate your confidence
Tell us how sure you feel before answering. It helps us understand your starting point.
- 2
Use hints if stuck
Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.
- 3
See what went wrong
Get instant feedback with clear explanations, so you can learn and improve.
Ready when you are
This takes about 4 minutes.

