A
Plant cells have rigid cell walls and no centrioles
B
Plant cells don't undergo mitosis
C
Plant cell mitosis is much slower
D
Plant cell mitosis is much faster
A. Nucleus
B. Cytoplasm
C. Mitochondrion
D. Ribosome
Answer:Cells need to make proteins. ... While a structure such as a nucleus is only found in eukaryotes, every cell needs ribosomes to manufacture proteins. Since there are no membrane-bound organelles in prokaryotes, the ribosomes float free in the cytosol. Ribosomes are found in many places around a eukaryotic cell.
Explanation:
B. Physical change; physical property of flammability
C. Chemical change; chemical property of reactivity
D. Chemical change; chemical property of flammability
Answer:
C = chemical change, chemical property of reactivity.
Explanation:
Chemical change:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
These changes are irreversible
These changes occur due to chemical reactions
These may not be observed with naked eye
Example:
The reaction of iron with air in the presence of water lead to the production if ion oxide which is called rusting. It is a chemical change.
Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg
The reaction of Hydrogen and oxygen:
H 2 (g) + O 2 (g) -------------------------------------> 2H 2O (l)
Physical Change:
The changes that occur only due to change in shape or form but their chemical or internal composition remain unchanged.
These changes were reversible.
They have same chemical property.
These changes can be observed with naked eye.
Example
Water converting to Ice
Water converting to gas
In this water molecule remain the same only they rearrange themselves that change its state of mater not composition
Answer:
C) Chemical Change; Chemical Property of reactivity
Explanation:
I took the test
Answer:
The glucose is the primary source of energy, which yields ATP in the presence of oxygen. The continuous intake of carbohydrates provide streamlined flow ATP that is meeting the demands of prolonged exercises.
Explanation:
Carbohydrate loading is defined as the increase in the intake of carbohydrates. Carbohydrates are stored in the form of glycogen, which is then broken down to yield glucose. Glucose is necessary to drive the vital functions of the body, such as respiration.
An athlete performing extensive exercise requires streamflow of ATP to fulfill the energy demands of the body. The metabolism of glucose provides ATP. The carbohydrates are the rich source of glucose, which in the substrate level undergoes oxidative phosphorylation and citric acid cycle. Oxygen plays a primary role in the breakdown of carbohydrates as glucose. It plays a crucial role in accepting electrons in the electron transport chain to synthesize ATP.
Thus, the continuous supply of oxygen is necessary for the metabolism of macromolecules. ATP in a higher amount is required by athletes to improve muscle performance. Thus, the stored glucose and continuous supply of oxygen are necessary to generate energy molecules.
For Further Reference:
best explains this observation?
Answer:
i dont know
Explanation:
Answer: Bacteria
Explanation:
I just took the test and it is not Eukarya