Answer:
Seen on the explanation.
Explanation:
Glandular tissues are a mixture of both endocrine (ductless, hormones are secreted directly into the blood) and exocrine (have ducts, hormones are secreted into surfaces) glands.
The pancreas and salivary glands are both exocrine glands although the pancreas has an endocrine function via the islets of Langerhans, both aid in the digestion of food.
The pancreas lacks striated ducts and the intralobular duct is similar to the intercalated duct of salivary glands. It often has a collapsed lumens and the cells are cuboidal with little cytoplasmic staining in contrast to acinar cells.
The pancreas can also be distinguished from the parotid gland by the presence of the pancreatic islet (islets of langerharns) which has an endocrine function.
Answer:
Explanation:
Some algae are phototrophs and this enable their survival during nutrients starvation at extreme temperature.
These phototrophs algae use light energy from sunlight, carbondioxide and water to synthesis organic food. The food produced is use as a survival means during nutrient starvation and they consume the food.
Somatic mutation
This happens in a single
cell of a developing somatic tissue. This cell is the progenitor of a
population of identical mutant cells, all of which have descended from the cell
that mutated. Additionally, they do not occur in cells that give rise to gametes;
therefore, the mutation cannot be passed on to descendants by sexual means. Somatic
mutation are often called acquired mutation because the change in genetic structure
is not inherited from a parent for they do not affect the germline. Thus, to
maintain the mutation, the individual containing the mutation must be clone.
Example: In red delicious apple, the
mutant allele that determine the golden color of an apple arose in a flower’s
ovary wall, which eventually developed into a fleshy part of the apple. The seeds
are not mutant so it will still give rise to red apple tree. Therefore, the golden
delicious apple originally arose from a mutant branch of a red delicious apple
tree.
Germline mutation
If a gene is altered in a germ cell,
the mutation is called germinal mutation. Germline tissue is set aside in the
course of development to form sex cells. Germ cells gives rise to gametes, so if
a mutant sex cell participates in the fertilization, then the mutation will be
passed on to the next generation. Moreover, germinal mutations will not be
expressed in the individual containing the mutation.
<span>Example: A hereditary case of
albinism are often link to germline mutation where individual of this disorder
are more prone to many types of cancers and may have impaired visions.</span>
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Ions are charged atoms or molecules. The plasma membrane is analogous to a capacitor, storing and separating charge. The voltage across the membrane varies from cell to cell, but a typical value is that the inside of the cell is -65 mV (millivolts) relative to the outside.
This may suggest that positive ions will flow into the cell when ion channels open, but, as mentioned in the question, the movement of ions is determined by both concentration and voltage.
This so called "electrochemical potential" can be calculated using the Nernst equation.
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Hi
Part of all organic compounds
Carbon is the main component of organic compounds infact it is the part of definition of organic compounds that they are carbon based such as alcohols, carboxylic acid, glucose and sucrose
Component of bones and found in cell membranes
Phosphorus, in the form of phosphate is an important component of cellular membrane,bones and other high-energy nucleic acids and phosphate compounds. Therefore it has an important role in as extracellular and intracellular constituent.
Important component of proteins, like carbon
Proteins play a major role in our body i form of enzymes which are an integral part of all the chemical reactions occurring in the body. An important component of every protein of the world is Nitrogen because it is a part of basic structure of amino acids.
Universal solvent
Water is a universal solvent as it can dissolve almost anything.
Hope it helps!
