Photosynthesis Mechanisms Quiz

Organisms that obtain their energy by consuming other organisms. They cannot produce their own food.

Organisms that create their own food by converting light energy into chemical energy. They produce organic molecules from carbon dioxide.

The process by which plants convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.

The breakdown of glucose in the presence of oxygen to release energy (ATP) for cellular processes.

The fluid-filled interior of a chloroplast, where the Calvin cycle takes place.

Flattened sacs within chloroplasts where light-dependent reactions occur.

A green pigment found in chloroplasts that absorbs light energy for photosynthesis. It gives plants their green color.

The first stage of photosynthesis where light energy is converted into chemical energy (ATP and NADPH).

The second stage of photosynthesis where carbon dioxide is converted into glucose using the energy from the light reactions.

The overall process of photosynthesis can be summarized as: carbon dioxide + water + light energy → glucose + oxygen. This is an endergonic reaction, meaning it requires energy input.

A series of chemical reactions in photosynthesis that uses the energy stored in ATP and NADPH from the light-dependent reactions to convert carbon dioxide into glucose.

The chemical reactions in photosynthesis where ATP and NADPH are produced using energy from sunlight.

The molecule that carries electrons in photosynthesis.

A series of proteins embedded in the thylakoid membranes of chloroplasts that transfer electrons and pump protons.

A difference in concentration of protons (H+) across a membrane, which can be used to generate ATP.

An enzyme that uses the energy stored in a proton gradient to produce ATP.

A group of molecules embedded in the thylakoid membrane of chloroplasts that captures light energy and uses it to power the light-dependent reactions.

A series of molecules in the thylakoid membrane that use light energy to move electrons and pump protons, creating a proton gradient that drives ATP production.

The collection of molecules embedded in the thylakoid membrane that absorb light energy and transfer it to chlorophyll a. They help capture a wider range of wavelengths than chlorophyll alone.

Plants need to produce all the organic molecules necessary for growth, including carbohydrates, lipids, proteins, and nucleic acids.

Plants store the chemical energy produced from light reactions in a more stable form, like glucose, which can be moved around the plant and saved for later use.

The Calvin cycle uses the energy from light reactions (ATP and NADPH) to convert carbon dioxide into glucose, the basic building block for plant growth.

The Calvin cycle is the process by which plants build sugar (glucose) using energy from light reactions and carbon dioxide from the air.

The light reactions of photosynthesis convert light energy into chemical energy (ATP and NADPH), which is then used in the Calvin cycle to produce glucose.

The first step in the Calvin cycle where CO2 is incorporated into an organic molecule.

An enzyme that catalyzes the reaction of carbon dioxide with ribulose bisphosphate (RuBP) in the Calvin cycle.

The process of regenerating ribulose bisphosphate (RuBP) in the Calvin cycle so the cycle can continue.