Answer:
It's True!!!!!!!!!!!!!!!!!!
Answer:
<h2>
A
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Explanation:
1. A channel between two adjacent cells in known as an intercellular cleft.
2. And through these channels many molecules can easily pass between cells.
3. Importance of Intercellular clefts:
i) It is very important in transportation of fluids and small solutes.
ii) It contains gap junctions, tight junctions, desmosomes, and adheren proteins and these junctions help in regulate cell communication by signal transduction, surface receptors, or a chemogradient.
Answer:
You could use a magnet to collect the iron, and then wash the sawdust off. Hope this helps :)
Answer:
Ratio = 
Explanation:
Side of a cube, a = 20 µm
The surface area of a cube, A = 6a² (a is side of the cube)
The volume of a cube, V = a³
The ratio of the surface to volume ratio of the cell will be given by :
So, the ratio of the surface to volume ratio of the cell .
Answer:
Biological catalyst has to be cut.
Explanation:
- Enzymes are called "Biological catalyst".
- Enzymes are called Biological catalysts because they diminish the activation energy for reactions. As the activation energy is reduced the rate of reaction is increased.
- Many enzymes modify their state when substrates bind and it is known as "Induced fit".
- Enzymes are nothing but Protein(Biological molecules). Most of the biological reactions are catalyzed by Protein.
- Enzymes improve the rate of synthetic reactions without getting altered forever by the reaction.
- For this reason Biological catalyst are needed to be cut and copy segemnte in DNA.
