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What are Cells that let some substances in keep others out let some substances out?
Wiki User
∙ 14y ago
The cell membrane controls what comes in and out of cells.
Wiki User
∙ 14y ago
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What type of cells protect the neurons in the central nervous system from some substances in the blood?
Could one conclude that Ependymal cells & Oligodenrocytes blood cells in the CNS protects neurons from some blood substances in blood.
When some substances can pass across them but others cannot biological membranes are said to have?
They are said to have semi-permeable membranes.That is,they allow some substances to pass through & prevent others due to the nature & composition of that substance.
Do some cells contain organelles but not others?
Almost all cells contain organelles, but there are some which do not. Red blood cells do not contain organelles, they only contain hemoglobin.
When some substances can pass across them but others cannot?
membrane
Why are some cells larger than others?
The function of the cells determine the size and shape of the cell. Cells that need more nutrients are bigger than other cells.
What lets substances like food and oxygen diffuse into body cells?
The semi-permeable membrane in cells. Allows some substances to go through and not others.
What animal has a nucleus?
Most animal cells (except for human red blood cells and some others) have a nucleus. It is like a control centre in the cell which allows some substances to enter and others substances to leave the cell. It also initiates chemical reactions and processes like respiration in the cell cytoplasm.
What type of cells protect the neurons in the central nervous systems from some substances in the blood?
Could one conclude that Ependymal cells & Oligodenrocytes blood cells in the CNS protects neurons from some blood substances in blood.
What type of cells protect the neurons in the central nervous system from some substances in the blood?
Could one conclude that Ependymal cells & Oligodenrocytes blood cells in the CNS protects neurons from some blood substances in blood.
What are some substances produced in human cells?
A lot of substances are made in cells: ATP O2 CO2 pyruvate NADH/FADH2 RNA mRNA, etc.
What is the functions of the cell?
functions of a bone cell are, to keep your bones strong and healthy and to keep your bones from not getting weak and breaking.
What is the property that allows only some substances in and out of cells?
The permeability of the cell membrane controls which substances may pass in or out of the cell.
Does all substances dissolve equally?
No. Some substances dissolve perfectly and are called homogeneous. Others do not and are called Heterogeneous.
What do animals use proteins for?
They play various roles. Some make up structural part of the bodies of the animals, others help certain substances pass into and out of cells, while still others, known as enzymes, catalyze chemical reactions.
Does the substances that take part in a chemical reaction keep their properties?
Some, but not all, substances do so. Such substances are known as catalysts.
When some substances can pass across them but others cannot biological membranes are said to have?
They are said to have semi-permeable membranes.That is,they allow some substances to pass through & prevent others due to the nature & composition of that substance.
What is the feature of plasma membrane that keep some substances out?
Selective Permeability
