11-26 Boilogy Cards Flashcards
What are the reactants for the photosynthesis reactions?
The products of photosynthesis, oxygen and glucose, are the reactants of the cellular respiration reaction.
What are the products for the photosynthesis reactions?
the products of cellular respiration, carbon dioxide and water, are the reactants in photosynthesis.
How does a plant obtain the reactants needed for photosynthesis?
Green plants absorb light energy using chlorophyll in their leaves. They use it to react carbon dioxide with water to make a sugar called glucose
What role is played by the hydrogen ions that were released from the water molecules?
Compare the roles of water molecules and hydrogen ions in electron transport chains. Water molecules are broken down by an enzyme into oxygen gas, electrons, and hydrogen ions.
What is the main photosynthetic pigment of photosynthesis?
Main photosynthetic pigment. Accessory pigments absorb other colors of light (green) that chlorophyll a can’t absorb. They help boost energy absorption
Explain why chlorophyll appears green in color?
Green plants are green because they contain a pigment called chlorophyll. Chlorophyll absorbs certain wavelengths of light within the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants.
What is the role of chlorophyll in photosynthesis?
Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. Chlorophyll molecules are arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts.
Why is sunlight needed in photosynthesis?
The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.
Name the part of the leaf that is the primary region of photosynthesis.
- Epidermis
- Airspace
- Guard-cell
- stomate
- Chloroplasts
- Palisade Parenchyma
- mesophyll Cells
- Spongy-parenchyma
Explain what happens when sunlight hits chlorophyll molecules
The energy from the light excites an electron from its ground energy level to an excited energy level .This high-energy electron can have several fates.
What is the name of the electron carrier in photosynthesis
The closely related nicotinamide adenine dinucleotide phosphate (NADP) is produced in the light reactions of photosynthesis
What is the purpose of the light dependent reaction?
Light-Dependent Reactions of Photosynthesis. The first major set of processes in photosynthesis, in which light energy is initially converted into chemical energy as ATP and NADPH, takes place across the chloroplast thylakoid membranes, between the chloroplast stroma and the thylakoid space.
Water molecules are broken down in the light dependent reactions. Name the three substances that are formed when water molecules are broken down?
Hydrogen atoms, Electrons, and oxygen.
What happens to the oxygen released from the water molecules?
the electrons in water are removed and passed to the reaction center chlorophyll. The associated hydrogen ions are released from the water molecule, and after two water molecules are thus split, the oxygen atoms join to form molecular oxygen (O 2 ), a waste product of photosynthesis.
Describe what happens to the high-energy electrons that are produced by photosystem 1.
the light dependent reactions use energy from the sunlight to produce oxygen and convert ADP and NADP into the energy carriers ATP and NADPH:
