Answer:
interaction of light and atoms
emission and absorption of light
Explanation:
Surface area and pores play important roles in the cell.
Pores are the tiny holes on the surfaces of a body. They help to facilitate movement of materials in and out of the cell.
The surface area is the amount of space the surface of a cell occupies.
- Pores in a cell needs to be in proper shape in order to facilitate movement of materials.
- When the pores in a cell are too large, too much materials are bound to leave the cell. Tiny pores makes it difficult for the cells to have enough materials to function properly well.
- The surface area of a cell allows for the diffusion of materials in and out of cell.
- The larger the surface area of a cell, the more and better reactions takes place because they will receive important life sustaining resources.
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Surface area to volume ratio brainly.com/question/9666705
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Answer:
Option (c).
Explanation:
Eukaryotes may be defined as the organism that contains the well defined nucleus and membrane bound cell organelle. The eukaryotes contains morte cell organelles as compared with prokaryotes.
The ribosomes of eukaryotes are larger than the ribosomes of prokaryotes. The 80'S ribosomes are present in eukaryotes whereas 70'S ribosomes are present in prokaryotes.
Thus, the correct answer is option (c).
Smooth muscles depolarize as a result of a transmembrane current of Calcium ions. When an action potential depolarizes the muscle cell membrane, it also travels into the body of the cell via the t-tubules. Unlike skeletal muscle, smooth muscle is dependent in two sources of calcium in order to intiate contraction. These two sources are calcium sequestered in the S.R. of the smooth muscle cell.
Answer: False
Explanation:
Pathogens can be transmitted in many ways. It can spread by direct contact, indirect contact, or by vectors.
The mode of transmission can be skin contact, airborne particles, touching a surface, bodily fluids, touched by an infected person.
The mode of transmission can be vector that carries disease and helps in disease transmission.
So, the pathogens can be transmitted by direct contact, indirect contact or by vectors and by many more ways.
