How chloroplast structure relates to its function?

The structure of the chloroplast is adapted to the function it performs: Thylakoids – flattened discs have a small internal volume to maximise hydrogen gradient upon proton accumulation. Grana – thylakoids are arranged into stacks to increase SA:Vol ratio of the thylakoid membrane.

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What is the role of chloroplast during photosynthesis?

A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth.

How does the structure of chloroplast relate to the phases of photosynthesis?

Chloroplasts are surrounded by a double membrane, which encloses even tinier membranes where photosynthesis takes place. These small membranes are folded into disk-shaped structures known as thylakoids, which are arranged in stacks called grana.

What is chloroplast structure?

Structure of Chloroplasts

Chloroplasts are oval-shaped and have two membranes: an outer membrane and an inner membrane. Between the outer and inner membrane is the intermembrane space approximately 10-20 nm wide. The space within the inner membrane is the stroma, the dense fluid within the chloroplast.

What is Chromoplast function?

Chromoplasts function in the synthesis and storage of carotenoid pigments in flowers and fruits, and in certain leaves and roots. The colouration of petals by chromoplasts is an evolutionary strategy adopted by some angiosperms to attract pollinators (Waters and Pyke 2005; Egea et al. 2010, 2011).

How does the structure of chloroplast relate to its function quizlet?

Stroma surrounds the granum stacks. The chloroplast is a double membrane organelle that performs the function of photosynthesis of plant cells. The chloroplasts use photosynthetic chlorophyll pigment and take in sunlight, water, and CO2 to produce glucose and oxygen.

What are two functions of chloroplast?

The main role of chloroplasts is to conduct photosynthesis. They also carry out functions like fatty acid and amino acid synthesis.

How is the chloroplast organized?

The Structure and Function of Chloroplasts

In addition to the inner and outer membranes of the envelope, chloroplasts have a third internal membrane system, called the thylakoid membrane. The thylakoid membrane forms a network of flattened discs called thylakoids, which are frequently arranged in stacks called grana.

What is chromoplast and chloroplast?

A chloroplast refers to a plastid in green plant cells which contains chlorophyll and in which photosynthesis takes place while chromoplast refers to a colored plastid other than a chloroplast, typically containing a yellow or orange pigment.

How does chromoplast help in pollination?

Answer. The chromoplast is an coloring agent which attracts the insects n insects are the mode of transportation as they take anther to the stigma. So, yes they help in pollination.

What is the most important function of chloroplast?

The most important function of the chloroplast is to synthesise food by the process of photosynthesis. Absorbs light energy and converts it into chemical energy. Chloroplast has a structure called chlorophyll which functions by trapping the solar energy and is used for the synthesis of food in all green plants.

Which statement describes the main function of chloroplasts in plants?

1 Answer. The main role of chloroplast is to conduct photosynthesis.

How does chromoplast help in dispersal of seeds?

As a consequence, chromoplasts confer bright colors to plant tissues: shades of orange, yellow, and red. Chromoplasts, therefore, are the quintessential plastids of flowers and fruits, attracting insects for pollination and animals for seed dispersal.

What are three functions of chloroplast?

  • Absorption of light energy and conversion of it into biological energy.
  • Production of NAPDH2 and evolution of oxygen through the process of photosys of water.
  • Production of ATP by photophosphorylation.

Which chromoplast is responsible for photosynthesis?

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

What is the function of chromoplast and Leucoplast?

FUNCTION OF LEUCOPLAST- They helps in the storage of starch, oils and protein granules in the cell. 2. FUNCTION OF CHROMOPLAST- They impart colour to different parts of the plants like flowers, fruits, etc.

What is chloroplast in biology?

Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth.

What is the function of chromoplast in a cell * 2 points?

Answer. Chromoplasts are basically plastids which are responsible for storage of specific pigments in fruits, roots and flowers giving them their distinctive color. The basic purpose of chromoplast as studied by evolution researchers is to attract insects and animals so that dispersal of seeds can take place.

What is the function of chloroplast Class 11?

The chloroplast contains the chlorophyll pigments which are involved in the production of food by photosynthesis. The solar energy is captured and the carbon dioxide is fixed with the help of the enzyme in the chloroplast. This carbon dioxide is used for making food for the plant.

What are plastids chloroplast & leucoplasts?

Chloroplasts and Leucoplasts are plastids. Plastids are organelles found only in plant cells. Chloroplasts are sites for photosynthesis. They are green in colour as they carry the green pigment chlorophyll. Leucoplasts are colourless plastids that have storage function.

What will happen if chloroplasts are replaced by leucoplasts in the cells of the leaves?

In the process of photosynthesis sunlight is absorbed by the chloroplasts to make sugar. Therefore, if chloroplast is taken out of the cell, the green plant will not be able to carry out the process of photosynthesis which means the plant will die.

What is the function of chromoplast in a cell Mcq?

Chromoplast is a kind of plastid. It lacks chlorophyll and has carotenoids. They impart specific colours to fruits and flowers. They help in pollination and dispersal of seeds.

What is leucoplasts function?

Leucoplasts (Fig. 1.9C) are a group of plastids that include many differentiated colorless organelles with very different functions (e.g., the amyloplasts), which act as a store for starch in non-green tissues such as roots, tubers, or seeds (Chapter 9).

What is a plastid and its functions?

Plastids are double-membrane organelles which are found in the cells of plants and algae. Plastids are responsible for manufacturing and storing of food. These often contain pigments that are used in photosynthesis and different types of pigments that can change the colour of the cell.

What is peroxisome and its function?

Peroxisomes are organelles that sequester diverse oxidative reactions and play important roles in metabolism, reactive oxygen species detoxification, and signaling.

What will happen if chloroplast is taken out of the cell and illuminated what is the role of leucoplast?

Chloroplast is the site of photosynthesis. If chloroplast is taken out of the cell, though illuminated, the plant cell will not able to synthesize the food and it will die.

What will happen if there is no chloroplasts in the cell?

Without chloroplasts, plants would not be able to get their energy from the sun and would cease to survive, leaving us without food. On the other hand, without mitochondria, animals would be lacking in cellular energy and would also fail to survive.

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