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Question

Which plant pigment is present in tomatoes?

The correct answer is

Lycopene

Tomatoes get their vibrant red color from a specific type of plant pigment. These pigments are naturally occurring compounds in plants that give them their colors and often have other functions.

Understanding Tomato Pigments

Different fruits and vegetables contain various pigments. For example, carrots are orange due to carotenes, and blueberries are blue due to anthocyanins. Tomatoes, especially when ripe and red, contain a high concentration of a particular pigment.

Let's look at the options provided:

  • Carotene: Carotenes are pigments responsible for yellow, orange, and sometimes red colors in plants. Beta-carotene is abundant in carrots, sweet potatoes, and other orange produce. While carotenes are present in tomatoes, they are not the primary pigment giving red tomatoes their color.
  • Xanthophylls: Xanthophylls are another type of carotenoid pigment, typically responsible for yellow or brown colors in plants and leaves. They are present in plants, but they are not the dominant pigment in red tomatoes.
  • Lycopene: Lycopene is a bright red carotenoid pigment found in tomatoes and other red fruits and vegetables such as watermelon, pink grapefruit, and papaya. It is the pigment primarily responsible for the characteristic red color of ripe tomatoes.
  • Phycobilins: Phycobilins are light-capturing pigments found in cyanobacteria and red algae. They are not found in higher plants like tomatoes.

Lycopene in Tomatoes

Based on the primary colors they impart and their distribution in the plant kingdom, Lycopene is the specific plant pigment that gives red tomatoes their distinctive color. It is a type of carotenoid but is known for its red hue.

Therefore, the correct pigment present in red tomatoes is Lycopene.

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Important Questions from Photosynthesis

  1. Kranz anatomy is found in _____ plant.

  2. Which one of the following reactions takes place during the reduction phase of the Calvin - Benson cycle?

  3. The following statements were made with the assumption that the concentration of 3- phosphoglycerate is high inside chloroplasts of an actively photosynthesizing leaf.

    A. There will be high concentration of triose phosphate in the chloroplast.

    B. The activity of ADP-glucose pyrophosphorylase will be inhibited.

    C. The carbon flow will be diverted from sucrose to starch.

    D. Starch synthesis will be inhibited and carbon flow will be more towards sucrose synthesis.

    Which one of the following combinations of above statements is correct?

  4. The table below shows photosynthetic type, temperature and sunlight intensity levels.

    Photosynthetic TypeTemperatureSunlight Intensity
    A. C3 Planti HighP. High
    B. C4 plantii ModerateQ. Moderate
    iii LowR Low

    Which of the following correctly matches the plant photosynthetic type with the temperature and sunlight conditions in which photosynthetic rate per unit leaf area is maximum for that plant?

  5. Which one of the following are the correct encoding sites of large and small subunits of Rubisco enzyme in red and brown algae?

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