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    Chlorophyll

    US /ˈklɔ:rəfɪl/

    ・

    UK /ˈklɒrəfɪl/

    A1
    n. (u.)Uncountable NounGreen substance in plants that absorbs energy from sunlight to help them grow
    n. (u.)Uncountable NounA molecule that absorbs light energy to convert carbon dioxide and water into carbohydrates and oxygen.
    The chlorophyll molecule contains a magnesium atom at its center.
    n. (u.)Uncountable NounA supplement derived from green plants, algae, or bacteria.
    Some people take chlorophyll supplements for their purported health benefits.

    Video subtitles

    Lili Reinhart on the Impact of Acne on Mental Health | Go To Bed With Me | Harper's BAZAAR

    08:27Lili Reinhart on the Impact of Acne on Mental Health | Go To Bed With Me | Harper's BAZAAR
    • It has chlorophyll in it, which is what makes it green in that, so it's not artificially colored.

      It has chlorophyll in it, which is what makes it green in that, so it's not artificially colored.

    • It has chlorophyll in it, which is what makes it green, and that so it's not artificially colored.

      It has chlorophyll in it, which is what makes it green, and that so it's not artificially colored.

    B1

    Biology: Cell Structure I Nucleus Medical Media

    07:22Biology: Cell Structure I Nucleus Medical Media
    • It's green because it has a green pigment called chlorophyll.

      It's green because it has a green pigment called chlorophyll.

    • chlorophyll.

      chlorophyll.

    B2

    What Top 1% of Test-Takers Know That You Don't (4 Key Tactics)

    09:42What Top 1% of Test-Takers Know That You Don't (4 Key Tactics)
    • Red light is absorbed more efficiently by chlorophyll than green light.

      Red light is absorbed more efficiently by chlorophyll than green light.

    • Red light is absorbed more efficiently by chlorophyll than green light.

      Red light is absorbed more efficiently by chlorophyll than green light.

    B1

    The Weird World of Parasitic Plants

    02:20The Weird World of Parasitic Plants
    • on its host for nutrients. A hemiparasite, however, might have some chlorophyll, so it

      on its host for nutrients. A hemiparasite, however, might have some chlorophyll, so it

    • Now, a hollow parasite has next to no chlorophyll, meaning it's completely reliant on its host for nutrients.

      Now, a hollow parasite has next to no chlorophyll, meaning it's completely reliant on its host for nutrients.

    B2

    Photosynthesis

    12:27Photosynthesis
    • find is that there's not only one pigment, chlorophyll A that does photosynthesis. But

      find is that there's not only one pigment, chlorophyll A that does photosynthesis. But

    • separate into all of its different parts. And so this right here would be chlorophyll

      separate into all of its different parts. And so this right here would be chlorophyll

    B1

    Why Do Leaves Change Colors in the Fall?

    03:22Why Do Leaves Change Colors in the Fall?
    • Leaves on most plants and trees are green because of a colorful chemical inside them called chlorophyll.

      Leaves on most plants and trees are green because of a colorful chemical inside them called chlorophyll.

    • Chlorophyll is bright green, but it does more than just look pretty.

      Chlorophyll is bright green, but it does more than just look pretty.

    A2

    Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology #35

    12:17Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology #35
    • All algae photosynthesize like plants, even though they're not plants, because they use different kinds of chlorophyll molecules.

      All algae photosynthesize like plants, even though they're not plants, because they use different kinds of chlorophyll molecules.

    • Red algae is able to live at greater depths and has an extra pigment in it called phycoerythrin, which gives its chlorophyll a boost in deeper waters.

      Red algae is able to live at greater depths and has an extra pigment in it called phycoerythrin, which gives its chlorophyll a boost in deeper waters.

    B2

    Structure Of The Leaf | Plant | Biology | The FuseSchool

    03:43Structure Of The Leaf | Plant | Biology | The FuseSchool
    • These cells are called palisade mesophyll, and they're packed full of chlorophyll, the green chemical that plants use to absorb light.

      These cells are called palisade mesophyll, and they're packed full of chlorophyll, the green chemical that plants use to absorb light.

    • and they're packed full of chlorophyll, the green chemical that plants use to absorb light.

      and they're packed full of chlorophyll, the green chemical that plants use to absorb light.

    B2

    Is Matcha Good For You? Green Tea vs Matcha Showdown!

    06:00Is Matcha Good For You? Green Tea vs Matcha Showdown!
    • Now, matcha is shade-grown, which boosts chlorophyll and amino acids like L-theanine.

      Now, matcha is shade-grown, which boosts chlorophyll and amino acids like L-theanine.

    • Matcha is shade-grown, which boosts chlorophyll and amino acids like L-theanine.

      Matcha is shade-grown, which boosts chlorophyll and amino acids like L-theanine.

    B1

    NASA's return to the moon hits a setback | February 23, 2026

    10:00NASA's return to the moon hits a setback | February 23, 2026
    • The researchers started looking at sea turtle feeding grounds for answers and found a declining trend of chlorophyll in plants and algae over many years.

      The researchers started looking at sea turtle feeding grounds for answers and found a declining trend of chlorophyll in plants and algae over many years.

    • The researchers started looking at sea turtle feeding grounds for answers and found a declining trend of chlorophyll in plants and algae over many years.

      The researchers started looking at sea turtle feeding grounds for answers and found a declining trend of chlorophyll in plants and algae over many years.

    B1