Redo Biology Questions 11-26 Flashcards
- What are the reactants for the photosynthesis reactions?
Water and carbon dioxide
- What are the products for the photosynthesis reactions?
C6H1202 + O2
- How does a plant obtain the reactants needed for Photosynthesis?
The carbon dioxide is found in the atmosphere and is taken in by the leaves of the plants.
The water is in the ground and is absorbed by the roots of the plants
- What role is played by the hydrogen ions that were released from the water molecules?
Released into the Thylakoid membrane and later used for ATP synthase
- What is the main photosynthetic pigment of photosynthesis?
Chlorophylla-a
- Explain why chlorophyll appears green in color
Chlorophyll is able to absorb all the colors of the spectrum except green; chlorophyll reflects the green light, therefore chlorophyll appears green to our eyes
- What is the role of chlorophyll in photosynthesis?
Capture light very well in the Blue-Violet and red regions of the spectrum
- Why is sunlight needed in photosynthesis?
It provides energy needed to power electrons
- Name the part of the leaf that is the primary region of photosynthesis
Chloroplasts.
- Explain what happens when sunlight hits chlorophyll molecules
The energy is transferred directly into the electrons of chlorophyll, and produces a steady steam of high-energy electrons
- What is the name of the electron carrier in photosynthesis
NADPH
- What is the purpose of the light Dependent reaction?
To convert solar energy into chemical energy in the form of NADPH and ATP, Which are used in light independent reactions - used to produce high energy sugars
- Water molecules are broken down in the light Dependent reactions. Name the the three substances that are formed when water molecules are broken down.
Oxygen, Hydrogen, and electrons
- What happens to the oxygen released from the water molecules
It is released into the atmosphere
- Describe what happens to high-energy electrons that are produced by photosystem 1.
They are used in NADPH
