what type of organelle is only present in plant cells

You can use this article to help you answer the question, “What type of organelle is only present in plant cell?” The answers will include Chloroplasts, Vacuole, Mitochondria, and Microtubules. You can also use the generic term “vacuole” to refer to any membrane-bound organelle.


The Vacuole organelle is found only in plant cells and is located in the center of a cell. It contains a variety of substances, including water, salts, ions, and nutrients. It also stores pigment molecules. In addition to storing these substances, the Vacuole can release various molecules that are toxic, odoriferous, or unpalatable, which may discourage animals from eating the plant.

The Vacuole is one of the largest organelles in a cell, filled with fluid and sometimes solids. It forms when multiple vesicles fuse together. Its function is largely dependent on the cell type and its needs. Plant cells have a larger Vacuole than animal cells.

The Vacuole organelle is a storage space for a variety of substances, including amino acids, peptides, and phenolic compounds. It is also a storage place for TCA cycle acids, peptides, proteins, and gums.

The Vacuole is a membrane-bound sac within a cell’s cytoplasm. In animal cells, they are small and only serve a few functions, but in plant cells, they perform multiple functions. In plant cells, they serve a structural role and help regulate water balance, waste products, and growth. A single Vacuole may take up most of the cell’s interior space.

Plant cells have membrane-bound organelles called plastids and vacuoles. These organelles are important for photosynthesis, storage of carbohydrates and proteins, and other processes. They also contain pigments, like chlorophyll. But these organelles are unique in the way they function.


Chloroplasts are the organelles that convert light energy into usable energy within plants. They are much bigger than mitochondria and have two membranes – a highly permeable outer membrane and a thinner inner membrane. The double membrane has an intermembrane space and contains membrane transport proteins. In addition, chloroplasts have an extra membrane called the stroma, which surrounds the chloroplast and contains its own genome and ribosomes and RNAs.

Plants use chloroplasts to convert light energy into sugars that power their cell machinery. This process is called photosynthesis and is a process that occurs in almost every type of plant, including algae. The chloroplasts contain two pigments called chlorophyll a and chlorophyll b. These pigments absorb light energy and produce sugars, which may be consumed by the plant cell or by animals that eat plants. Cellular respiration is another important process in plant cells.

Chloroplast structure and function are intimately related, so biochemists need to understand their morphological status. The two types of chloroplasts are found on the same plant, though they are different in function. Their morphology depends on the light environment they receive during leaf expansion.

The genome of chloroplasts is between 100 and 200 kb in size. Unlike many other organelles, the chloroplast has its own DNA and reproduces independently of its host cell. It has evolved from a free-living prokaryote that was consumed by a larger organism.

Chloroplasts are present in all cells of plant life. The chloroplasts are responsible for photosynthesis, the process by which green plants get their food. Chloroplasts absorb light energy from the sun. These organelles store nutrients in the plant’s cells so that it can use it later on when it needs to grow.

Plant cells are very different from animal cells. Animal cells lack chloroplasts, a feature that allows plant cells to capture light from the sun and convert it to usable energy. They also lack a cell wall.


Mitochondria are specialized organelles within cells. They make energy through a series of chemical reactions and electron transfer across their membrane. They are made up of protein complexes embedded in the internal membrane. While all genes produce energy, those that code for central proteins tend to stay in the mitochondria and those that create peripheral energy-producing proteins are outsourced to the nucleus.

ATP production is a complicated process and takes place inside the mitochondrial inner membrane. The process involves five proteins called the respiratory chain, which transport electrons from one part of the cell to another. This energy is then converted to ATP. The chloroplast is surrounded by two membranes, the outer membrane being permeable to small organic molecules, while the inner membrane is studded with transport proteins. The inner matrix contains metabolic enzymes and multiple copies of the chloroplast genome.

The bidirectional communication between mitochondria and the rest of the cell is crucial for maintaining the proper cellular environment. This communication occurs through two primary mechanisms, calcium and ATP monitoring. This communication can become compromised when cellular stress occurs, leading to mitochondrial dysfunction. In addition to the role mitochondria play in maintaining energy levels, mitochondria are also responsible for sensing innate immune responses. If the mitochondria are damaged, ROS can accumulate and activate the immune system. The shape and conformation of mitochondria is also a good indicator of whether they are in an activation state or not.

Besides producing ATP, mitochondria also play a crucial role in sugar integration. Sugar is converted into energy within the cell and is used to drive various processes within the cell. Therefore, the presence of mitochondria is essential for plants to produce energy in ATP form. Photosynthesis is one of the ways plants make this energy.

Calcium signaling controls ATP levels in mitochondria. This process is also regulated by ROS. The cytosol contains calcium-releasing channels, which are directly exposed to ROS. This process is important for maintaining homeostasis within the cell.


Microtubules are structures in a cell that help cells move. They form most of the inside of flagella and cilia. In animal cells, they play an important role in mitosis by organizing pericentriolar material to form the mitotic spindle fibres. In plants, however, the microtubules appear to act solely to move the organelles.

Unlike animal cells, plant cells lack centrosomes, which are structures that help cells lengthen microtubules. That has made the origin of microtubules in plants a mystery until now. In a recent study published in Science, scientists were able to observe the origin of plant microtubules and the way they move across the cell.

Plant microtubules are part of the cytoskeleton and help organelles move inside the cell. They also help cells maintain shape and form a structure. In animal cells, microtubules originate in the centrosome and self-organize. In plants, however, new microtubules are branched off of preexisting microtubules. This is at odds with the usual trend for microtubules to stay parallel bundles.

Microtubules are a highly conserved polar polymer. They are critical for various cell functions and are made from ab-tubulin, which contains structural GTP and hydrolysable GTP. This polymer is metastable and is essential for cell morphogenesis and division.

MT dynamics are complexly regulated by proteins. Many of these proteins bind to tubulin subunits and modulate their functions. Molecular genetics-based studies have identified novel MT regulators. These include proteins that bind to tubulin subunits but do not co-sedate with the MTs after ultracentrifugation.

Plant cells have a central vacuole that regulates the cell’s water content. The central vacuole contains slime molds and protozoans, as well as some algae. This central vacuole accounts for approximately 90% of the cell volume.