Sentences with word «organelle»

An organelle is like a tiny, specialized structure inside living cells. It has a specific job, just like how different parts of a house have specific roles. Some organelles help with energy production, while others help with controlling the cell's activities. Full definition
Chloroplasts are one of the many different types of organelles in the plant cell.
For example, in an observed class, Cassie taught students about cell organelles in an animal cell.
For instance, light receptors in more advanced eyes are built either out of modified cytoplasmic projections called microvilli, or out of filament - shaped cell organelles called cilia.
You have trillions of little energy factories that are cellular organelles called mitochondria that help your body run.
The tripods in turn can form prism - like structures, 100 nanometers on each side, that begin to approach the size of cellular organelles such as mitochondria.
It all starts with the tiny organelles within a plant's leaves, known as chloroplasts.
Dr. Chu, who studies autophagy, or «self - eating,» in Parkinson's disease, was seeking a change on the mitochondrial surface that could signal to LC3 to bring in the damaged organelle for recycling.
In the case of living cells, Guo wondered whether the surrounding cytoplasm would have a similar crowding effect on the movement of major organelles such as mitochondria and lysosomes.
Takuji Ishikawa and Kenji Kikuchi from the Graduate School of Engineering at Tohoku University have discovered that microorganisms with hair like organelle called cilia, can avoid entrapment at a dead end, where cells would otherwise never return.
Lysosomes are responsible for the turnover and clearance from cells of damaged organelles and protein aggregates.
Mitochondria, the energy - generating organelles inside cells, carry a circular chromosome containing genes needed to make the mitochondria and keep them running.
It seems that the fertilizer increased the number of ribosomes (tiny organelles in the non-nuclear part of the cell).
The researchers then adjusted the charge of the peptide molecules in the synthetic liquid organelles by using common enzymes — proteins that catalyze specific reactions in a cell.
The study also shows an increase in the number of mitochondria (membrane bound organelle found in cells that make up tissue in animals and plants) in the body during a regular consumption of BCAA.
Of course, replacing faulty mitochondria, which are self - contained organelles within the cell, is relatively simple and — we think — safe.
The researchers created synthetic liquid organelles by combining, in a solution, negatively - charged RNA molecules with positively - charged short peptides — chains of amino acids similar to, but smaller than, proteins.
Now a team led by Pal Maliga of Rutgers University in New Jersey has shown that cells also swap mitochondria — energy - generating organelles with a small genome of their own — across grafts.
DNA inside energy - producing organelles called mitochondria is destroyed in a dad's sperm shortly after it fertilizes an egg, researchers report online June 23 in Science.
An example here would be the way in which organelles are part of the very constitution of a living cell.
To test his hypothesis, he and his colleagues carried out experiments on living mammalian cells, into which they injected tiny plastic beads ranging in size from 0.5 to 1.5 microns — a range that covers most major organelles.
Glutathione protects our intracellular organelles such as the genetic material itself.
What seems to be important in heat tolerance is the composition of lipids in the membranes of chloroplasts, organelles where photosynthesis turns light into chemical energy.
«At least half of the department, six or seven people at the time, were working in one particular area, how you move materials between different organelles,» she says.
Maureen (Cornell University, Ithaca) is a leader in plant organelle biology, and she has been involved in modifying chloroplast and mitochondrial gene expression, as well as working to enhance plastid carbon fixation.
«But more importantly, it provides the very first picture of the shell of an intact bacterial organelle membrane.
She is also looking at other membrane-less organelles, such as the formation of neuronal granules and nuclear speckles.
The pigment which is responsible for the skin colour, it is made from cytoplasmic organelles known as melanosomes.
As we age, the nitric oxide meant to cause dilation is increasingly destroyed by reactive oxygen species such as superoxide, which are produced by many components of our body's own cells, including organelles called mitochondria.
Mitochondria are round or rod - shaped organelles inside most of our cells that produce enzymes for converting food to energy.
Activities include cell organelle functions, specialized cells, plant vs. animal cells, and cell division.
Most eukaryotic cells also contain other membrane - bound organelles such as mitochondria, chloroplasts and the Golgi apparatus.
The complexity of the 3 - D multicellular environment can be overwhelming, Betzig says, but the clarity of his team's imaging permits them to computationally «explode» apart the individual cells in tissue to focus on the dynamics within any particular one, such as the remodeling of internal organelles during cell division.
Using 2D and 3D chemotactic chambers we are investigating if filopodia are guiding organelles responsible for directed cell migration.
Marc is recognized «for his important contributions to mitochondrial biology, in particular the study of the functional relationships between organelle morphology and cellular energetics, and the identification of ABCB10 as the first mitochondrial ATP transporter essential in oxidative stress protection».
This class of organelles also helps many types of pathogenic bacteria metabolize compounds that are not available to normal, non-pathogenic microbes, giving the pathogens a competitive advantage.
Electron microscopic studies revealed that the presynaptic terminal of the neuron transmitting the information is filled with synaptic vesicles, small organelles containing thousands of molecules of a chemical neurotransmitter.
Although it's long been suspected by researchers that exercise benefits down to the cellular level, relatively little is known regarding which exercises can help cells restore the key organelles which deteriorate as we get older.
Mitochondria, specialized organelles found in nearly every cell of the body, use cellular respiration to generate one of the most important sources of chemical energy — adenosine triphosphate (ATP), a versatile nucleotide that powers everything from cell division to cell signaling to transportation of large molecules across the cell membrane.
«We believe Gamillus can be a powerful molecular tool for investigating unknown biological phenomena involving acidic organelles, such as autophagy.»
«How bacterial organelles assemble: Structure of microcompartment's protein shell could help research in bioenergy, pathogenesis, and biotechnology.»
For example the group tracks lipid droplets and their inter-organelle contacts over time, looking at their interaction with other labeled organelles.
The membrane associated adaptor ankyrin - B (AnkB) promotes fast axonal transport and elongation by coupling dynactin to multiple organelles through binding to phosphatidylinositol 3 - phosphate lipids in these cargos.
Chloroplasts are one of the many unique organelles in the body, and are generally considered to have originated as endosymbiotic cyanobacteria.
«Cargal not only carefully explains the mitochondrial essence of aging and illness, but as a traditional Chinese medicine expert suggests herbal, nutraceutical, and vitamin and mineral solutions supporting the most important organelles of our cells — the mitochondria.»
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