How can you explain why some leaves are light green and others are dark green?

Chlorophylls appear green because they absorb light at the blue and red ends of the visible spectrum. Chlorophyll a is the most abundant form in leaves and has a light green colour. Chlorophyll b absorbs more of the shorter, blue wavelengths of sunlight, giving it a darker shade of green.

What causes the green coloring of a plant’s leaves?

The longer answer lies in the details of photosynthesis, the electromagnetic spectrum, energy and “special pairs” of chlorophyll molecules in each plant cell. As such, plants look green because they absorb red light most efficiently and the green light is reflected.

Why do leaves appear green even it absorbs other colors of light?

Green plants are green because they contain a pigment called chlorophyll. As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green.

Why the part of leaf which is exposed to sunlight is dark in colour?

The upper part of the leaf has to be exposed to more sunlight so more photosynthesis can take place and in order to perform more photosynthesis the plant leaves have more chlorophyll concentration at the upper surface and thus it is darker at the top.

Why do you think plant leaves have different colors?

The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor. All these colors are due to the mixing of varying amounts of the chlorophyll residue and other pigments in the leaf during the fall season.

Why are plant leaves generally green in color Class 8?

Solution: Green plants are green because they contain a pigment called chlorophyll. Chlorophyll is found in the chloroplasts of plants.

Why do plants absorb red light?

The primary reasons why LED fixtures emit a lot of red are 1) red LEDs are among the most efficient at converting electricity into photosynthetic photons, 2) chlorophyll strongly absorbs red light, thus it is effective at photosynthesis, and 3) red LEDs are relatively inexpensive.

What do dark leaves on a plant mean?

Browning leaves are typically caused by under watering, sunburn, or overwatering. Under Watering – If the leaf tips are turning brown and crunchy, the soil likely became too dry for too long in between waterings. This can also cause the plant to drop leaves.

Why do some plants have dark leaves?

Similarly, new leaves in a plant are small and light-green. As they mature, their functioning increases, and chlorophyll is produced more and they get darker. Meanwhile, the old leaves covered by this new foliage, produce more chlorophyll b to capture light and they turn dark-green.

Why is the presence of chlorophyll in plants important quizlet?

Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. light energy is converted into chemical energy. Using the energy of light, carbohydrates such as sugars are synthesised from carbon dioxide and water.

Why do leaves appear in shades of yellow orange and red in the fall quizlet?

What is responsible for the beautiful shades of red, orange, and gold in autumn leaves? Accessory pigments become visible after chlorophyll breaks down.