Sentences with phrase «surrounded by a membrane»

Autophagy literally means «self - eating,» and refers to a sophisticated system in which cellular waste is specifically detected, surrounded by membranes, and removed.

All mammalian cells are surrounded by a membrane covered in polyvalent choline phosphate, or PC - groups, that repel aqueous particles, protecting the cell from the environment.

Photosystem II is found in the thylakoid, a compartment in chloroplasts and cyanobacteria surrounded by a membrane.

Living cells are surrounded by a membrane that tightly regulates what gets in and out of the cell.

Remarkably, other organelles, like for example the nucleolus, are not surrounded by membranes.

Also, all nerves are surrounded by a membrane that is high in fat.

All the cells in the body are surrounded by membranes.

Not exact matches

Animal cells within the meat are surrounded by a thin membrane that is easily dissolved by digestive juices, however, when cooked quickly and at high temperatures, this membrane will toughen, slowing digestion and impairing nutrient uptake.

The baby is surrounded by amniotic fluid, which contains shock - absorbing properties, as well as by durable membranes and the muscle and bones of our uterus and abdominal cavity.

Reptiles (also called «herps») are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane.

Both organelles are surrounded by a double celled composite membrane with an intermembrane space; both have their own DNA and are involved in energy metabolism; and both have reticulations, or many infoldings, filling their inner spaces.

A few microscopic techniques can focus light deep into the intact brains of dead animals to study its structure without damaging the axons, but much of this light is scattered away by the fatty lipid membranes that surround individual cells, making the technique less than perfect.

Further animal studies by Kipnis and others show that learning new tasks triggers a mild stress response within the brain, which prompts CD4 cells to rally to the meninges, the membranes that surround the brain.

Inside the reactor, the cell - and - chemical mixture is surrounded on three sides by polycarbonate; on the fourth side is a flexible and gas - permeable silicone rubber membrane.

Each human cell is surrounded by a lipid membrane, a molecular barrier that serves to contain the cellular machinery and protect it from the surrounding elements.

Because of the lack of structural data for membrane proteins both in the presence and absence of anesthetics, it remains unclear whether anesthetics exert their primary effects by direct interaction with these proteins, or indirectly via interaction with the lipids surrounding them.

Images taken with an electron microscope confirmed that not only was its DNA separate from the rest of the cell, it was enclosed by a double membrane — just like the membrane envelope surrounding the nucleus of complex cells.

A further 228 cases of CJD were caused by transplantation of prion - contaminated dura mater — the membrane surrounding the brain and spinal cord — prepared from cadavers around the world.

Exosomes are surrounded by bits of cell membrane and filled with proteins and different types of the genetic material RNA.

On Earth, cells are packets of mostly water surrounded by thin membranes made of lipids.

Secondary plastids are surrounded by three (in euglenophytes and some dinoflagellates) or four membranes (in haptophytes, heterokonts, cryptophytes, and chlorarachniophytes).

They are surrounded by two membranes (each a phospholipid bi-layer), the inner of which is folded into invaginations called cristae, where aerobic respiration takes place.

The nucleus is surrounded by a double membrane (commonly referred to as a nuclear envelope), with pores that allow material to move in and out.

Skin cells are surrounded by a fatty membrane that protects them.

Bacteria are surrounded by fatty cell membranes which are a little bit slippery.

Body cells are surrounded by an envelope, the cell membrane, that is made up of fats.

Bacteria consist of a single cell surrounded by a protective membrane made up of fat.

Every single cell in our body is surrounded by a lipid membrane made of cholesterol, fatty acids, and protein transport channels.

In principle, however, one could do it by surrounding the expanding gas cloud with a massless elastic membrane, or an elastic membrane accelerated to match velocities when the gas reaches it, or by an array of rocket nozzles pointed into the flow to catch the gas, or by surrounding it with a massive perforated sphere with a gravitational escape velocity higher than the gas velocity, or by running it into a medium of suitably graduated density, etc...

From his membrane around a volume / mass below TOA, quite appropriate to observe that neither convection nor conduction can ultimately cool planet Earth surrounded by space.

Mesothelioma is a type of cancer, caused by asbestos exposure, which develops in the membrane which surrounds your internal organs.