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Which of these can be found both floating free in the cytoplasm and attached to a larger membrane?
ZachWestfb6016
organelles. mitochondria, cytoskeleton, Golgi complex, endoplasmic reticulum, lysosomes ribosomes etc.....
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∙ 12y ago
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Which layer controls selective permeability?
The cell membrane controls selective permeability. Larger substances can enter the cell through endocytosis and exit through exocytosis.
How do transport proteins work?
They are used in Facilitated Diffusion, helping to transport ions, macromolecules, and other substances incapable of entering a cell by themselves to cross through the plasma membrane of the cell.
Bacterial cells are usually much larger than eukaryotic cells?
There are 2 basic cell types: prokaryotic and eukaryotic. Prokaryotic cells arebacteria.Eukaryotic cells generally are larger and more complex than prokaryotic cells.
Why is the cell membrane called semi-permeable?
The cell membrane is hydrophilic outside and hydrophobic from inside thanks to the phospholipid. The membrane also contains protein gated channels which allow some molecules to pass through and ion channels. The transport in an out of cells is also controlled by osmotic pressure, the electric charge etc.
Trait that improves a species chance of survival?
Adaptation is a trait or structure that improves an organism's chance for survival and reproduction. Benthos is organisms that live on or near the ocean bottom, sometimes attached to surfaces.
What part do all cells contain?
All cells have a plasma (cell) membrane, cytoplasm, and hereditary material. The plasma membrane controls what enters and leaves the cell. Cytoplasm is where most of the life processes occurs. The activities of the cell are controlled by the hereditary material. In small, simple cells called prokaryotes, this coded hereditary material floats free inside the cytoplasm. In larger, more complex cells called eukaryotes, the coded DNA is contained in a membrane bound structure called the nucleus. Eukaryotic cells have other cell part (organelles) that prokaryotes don't. So both prokayotes and eukaryotes have the three cell parts described above.
Why aren't there cells 1 foot in diameter or larger?
The reason there is a limit on the size of a single living cell is the mass to surface area ratio. The membrane is where oxygen is exchanged and molecules diffuse and are transported. A membrane will increase linearly with the diameter but the internal volume will increase to the cube of the diameter so at some point there is not enough membrane to service the large amount of living 'stuff' in the cytoplasm.
What is the structure that surrounds every cell?
The thin structure that surrounds the cytoplasm of a cell is called as cell membrane. This is present in most plant, animal and fungi cells. It is a selectively permeable structure and allows the flow of ions and particles from the inside of the cell to the outside and vice-versa. However plant cells, in addition to the cell membrane also have the cell wall outside the cell membrane. This provides mechanical rigidity to the cell and prevents the flow of larger particles.
What is a free-floating organism that serve as food for larger animals?
plankton
How does the size of the vacuole different in plant and animal cell?
It is much larger in a plant cell because a cell needs more water in-order to perform photosynthesis. Also plants have one big vacuole, whereas animals have a number of smaller vacuoles floating around in the cytoplasm.
What is the thin structure surrounding an animal cell?
The thin structure that surrounds the cytoplasm of a cheek cell is called as cell membrane. This is present in most plant, animal and fungi cells. It is a selectively permeable structure and allows the flow of ions and particles from the inside of the cell to the outside and vice-versa.
What do cells use to transport substances?
Some substances can go directly through the cell membrane, but other larger ones either go throuh channels or attach to a protein that aids them into the cell.
What surrounds a plant cell and protects it?
The thin structure that surrounds the cytoplasm of a cell is called as cell membrane. This is present in most plant, animal and fungi cells. It is a selectively permeable structure and allows the flow of ions and particles from the inside of the cell to the outside and vice-versa. However plant cells, in addition to the cell membrane also have the cell wall outside the cell membrane. This provides mechanical rigidity to the cell and prevents the flow of larger particles.
The parts that all plantes and animal cells have are the blank blankthe blank and the blank?
Both plants and animals have all of the following: vacuoles (the ones in plant cells are much larger) mitochondria endoplasmic reticulum ribosomes golgi bodies lysosomes cell membrane cytoplasm and a nucleus
What basic parts do all cells contain?
All cells contain a cell membrane, which acts as a barrier between the inside and outside of the cell. They also have genetic material, either in the form of DNA or RNA, which contains the instructions for the cell's structure and function. Additionally, cells contain cytoplasm, a jelly-like substance that suspends organelles and provides a medium for cellular reactions.
What is a thin structure that surrounds a cell?
The thin structure that surrounds the cytoplasm of a cheek cell is called as cell membrane. This is present in most plant, animal and fungi cells. It is a selectively permeable structure and allows the flow of ions and particles from the inside of the cell to the outside and vice-versa. However plant cells, in addition to the cell membrane also have the cell wall outside the cell membrane. This provides mechanical rigidity to the cell and prevents the flow of larger particles.
When a cell takes in larger particles through a cell membrane?
When a cell needs to take in a particle larger than the membrane channels can passage, it will invaginate the cell membrane around the particle(s) and pinch off part of the membrane containing the particles inside the cell membrane. This is called phagocytosis (when the particles are primarily solid) or pinocytosis (when the particles are primarily liquid).
