What is the phase of photosynthesis?

The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH.

What are the 4 phases of photosynthesis?

It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).

What is Phase One of photosynthesis?

Stage one of photosynthesis is the light-dependent reaction, wherein the organism uses sunlight to make carrier molecules for energy. During this stage, sunlight interacts with chlorophyll, exciting its electrons to a higher energy state.

What happen in the light phase?

The light phase is the first phase of photosynthesis, when light is absorbed by complexes made up of chlorophylls and proteins called photosystems (located in the chloroplast). During this phase, solar energy is converted into chemical energy. This is of course photosynthesis.

How does oxygen get added to the atmosphere?

The Earth’s atmosphere contains about 1.2 x 1021 grams of oxygen (O2). Every year about 2.66 x 1017 g of oxygen is added to the atmosphere by the photosynthesis of land plants and marine phytoplankton. Nearly all the O2 added to the atmosphere each year is consumed by organisms that decompose dead organic materials.

Where do Phase 1 and Phase 2 of photosynthesis take place?

Both stages of photosynthesis take place in chloroplasts. The light reactions take place in the thylakoid membranes, and the Calvin cycle takes place in the stroma.

What is a light phase?

The light phase is the first phase of photosynthesis. It refers to the conversion of solar energy into chemical energy. Light is absorbed by complexes made up of chlorophylls and proteins called photosystems, which are located in the chloroplasts.