Active transport: Movement of materials across a membrane that requires an input of energy from a cell. Movement of material against the concentration gradient (from low concentration to high concentration)
Passive transport: Movement of materials across a membrane that does not require energy from the cell. Movement of material against the concentration gradient (from high concentration to low concentration)
Hope this helps!
Answer:
p53 helps the cells from passing on mutations that lead to DNA damage. Hence, it is known as the guardian angel of the cell as it helps fight against cancer. However, if p53 becomes defective or missing, then the mutations will lead to cancer.
Mutations in the p53 can also cause the tumor-suppressing genes to convert into tumor causing genes. Hence, mutations in such kind of genes can be very harmful for the body.
Answer:
The 5 impacts humans have on the environment in order from easiest to fix to hardest to fix is explained below in details.
Explanation:
Humans impact the physical surroundings in various forms: pollution, smoking fossil fuels, overpopulation, including deforestation. Developments like these have triggered climate modification, soil erosion, poor air quality, and impure water.
The Biggest Environmental Problems
- Biodiversity Decline.
- Plastic Pollution.
- Deforestation.
- Air Pollution.
- Agriculture.
