What is the function of a thykaloid?
Credit: Ginny CC-BY-SA 2.0
Q:

What is the function of a thykaloid?

A:

Quick Answer

The function of a thylakoid is to serve as the compartment where the light-gathering reactions of photosynthesis occur, as explained in "Molecular Biology of the Cell." It is located in the stroma of the choloroplast, which is the space found between the inner membrane and the thylakoid membrane.

  Know More

Full Answer

Thylakoids are made of an interconnected system of flattened, disc-like sacs. They tend to form stacked aggregates, called grana, which contain approximately 10 to 20 thylakoids each. They contain the electron-transport chain, the photosynthetic light-absorbing system and an ATP synthase enzyme. On the outside of the thylakoid membrane is the stroma, which is the large interior space of the chloroplast and contains enzymes that incorporate CO2 into sugars, ribosomes, RNA and DNA. The membrane of the thylakoids contains important protein complexes that carry out the light reactions of photosynthesis. Photosystem I and II complexes that harvest light with chlorophyll and carotenoids are located there. They absorb light energy and use it to energize the electrons in the electron transport chain. A large protein complex known as ATP synthase controls the concentration gradient of the hydrogen ions in the thylakoid space to generate ATP energy, and the hydrogen ions flow back into the stroma.

Learn more about Botany

Try a quiz

Q:
How long does it take to hike the Pacific Crest Trail?

Related Questions

  • Q:

    What is the function of the stem?

    A:

    A stem has several functions, including support, conducting water, storing water, producing food and facilitating asexual reproduction. The stem connects the plant's leaves and flowers to its roots. Along with water, the stem carries products from photosynthesis and nutrients to the roots and leaves. It engages in food production through photosynthesis, and it also stores the products made during photosynthesis.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of a flower?

    A:

    The purpose of a flower is to attract pollinators to a plant to aid in fertilization so that the plant creates seeds. Bright colors, strong scents and sweet nectar all work together to attract birds, bees and other insects to move pollen from one flower to another. After pollination occurs, the flower develops seeds.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of a flower's style?

    A:

    In plants, the style is the long, slender stalk that connects the stigma to the ovary. The stigma is where the pollen is deposited, and the ovary is at the bottom of the style and houses the plant's ovules, which contain the egg cells. The function of the style is to check compatibility and judge whether the pollen that lands on the flower can fertilize the plant.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of rhizomes?

    A:

    A rhizome is a horizontal stem of a plant that forms new roots and shoots. Many invasive plants form rhizomes, making them difficult to eradicate. When cut from the parent plant, the rhizome forms a new plant, unlike many roots that die.

    Full Answer >
    Filed Under:

Explore