Transformation of light energy to chemical energy when carbon compounds are produced in photosynthesis
Practice Flashcards
Flip to reveal answersIn terms of energy, what does photosynthesis do?
Track your progress — Sign up free to save your progress and get smart review reminders based on spaced repetition.
All 12 Flashcards — Transformation of light energy to chemical energy when carbon compounds are produced in photosynthesis
Sign up free to track progress and get spaced-repetition review schedules.
Question
In terms of energy, what does photosynthesis do?
Answer
It **converts light energy into chemical energy** stored in glucose.
Question
Define photosynthesis.
Answer
The process that **converts light energy into chemical energy** (stored in glucose), using carbon dioxide and water as raw materials.
Question
What are the raw materials of photosynthesis?
Answer
**Carbon dioxide** and **water**.
Question
What are the products of photosynthesis?
Answer
**Glucose** and **oxygen**.
Question
Write the word equation for photosynthesis.
Answer
**carbon dioxide + water →(light, chlorophyll)→ glucose + oxygen**.
Question
What is the role of chlorophyll?
Answer
It is the **green pigment** that **absorbs the light energy** used to drive photosynthesis.
Question
Where is the chemical energy from photosynthesis stored?
Answer
In the **bonds of glucose**.
Question
Is light a raw material of photosynthesis?
Answer
**No** — light is the **energy input**. It is absorbed and converted, but not built into the glucose.
Question
Where does the oxygen released in photosynthesis come from?
Answer
From the **water** that is split during the process.
Question
Why does a water plant bubble in the light but not the dark?
Answer
Photosynthesis needs **light energy**, so it only occurs in the light, releasing **oxygen** as bubbles.
Question
Define chemical energy.
Answer
Energy **stored in the bonds of a molecule** (such as glucose); it can be released later by respiration.
Question
Which gas is released as a waste product of photosynthesis?
Answer
**Oxygen (O₂)**.
Read the notes
Full study notes for Transformation of light energy to chemical energy when carbon compounds are produced in photosynthesis
Topic 3.3 hub
Photosynthesis
More from Topic 3.3
All flashcards in this topic
Biology exam skills
Paper structures & tips
Track your progress with spaced repetition
Sign up free — Aimnova tells you exactly which cards to review and when, so you remember everything before your IB exam.
Start Free