Thylakoids contain clusters of chlorophyll and proteins known as . They absorb sunlight and generate high-energy that pass along the .

Thylakoids are the membrane-bound structures present within chloroplasts of the plant cell. Thylakoids consist of photosystems and are surrounded by the thylakoid membrane.

The correct blanks for the given statement are:

Thylakoids contain clusters of chlorophyll and proteins known as photosystems. They absorb sunlight and generate high energy that passes along the thylakoid membrane.

Photosystems in the thylakoids are the structural and functional protein complexes, which play a crucial role in performing photosynthesis. These systems are present along the thylakoid membranes, and carry out the primary photochemistry of photosynthesis.

The thylakoid membrane is involved in the light-dependent reactions of photosynthesis. The membrane absorbs light energy and is then converted into chemical energy. The high-energy generated is passed along the thylakoid membrane.

Therefore, the correct answers are photosystems and thylakoid membrane.

To know more about thylakoid, refer to the following link:

link

1) Photosystems

2) Thylakoid membrane

Explanation:

Photosynthesis is an important phenomenon for the cells of autotrophic organisms like green plants. It is the process through which they obtain their energy source. Photosynthesis, which consists of two stages, occurs in the Chloroplast of the cell.

The light dependent stage occurs in the thylakoid lumen of the CHLOROPLAST while the light independent stage occurs in the stroma. The thylakoid is a membrane-bound sac usually organized in stacks called GRANA.

The Chlorophyll pigment, which captures the photon of light needed for the photosynthetic process, is contained in the thylakoid. Also, embedded in the thylakoid space are protein complexes called PHOTOSYSTEMS, which are involved in the capturing photons of light and transferring of electrons. The Photosystems 1&2 are the functional units of photosynthesis.

The high energy generated by the Photosystems are transferred from one electron carrier to another along the thylakoid membrane in order to generate ATP and NADPH. This process is called Electron transport chain.