Answer:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it
Explanation:
thank me later
When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).
Examples:
1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.
2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein
3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).
4.exocytosis - opposite of above
I believe the answer is d
<u>Answer:</u>
The type of cells that forms the stratum in the epidermis are basal cells.
<u>Explanation:</u>
- Basal cells have the shape of cuboidal stem cell which forms different stratum in the epidermis.
- There are mainly five stratum layers in the epidermis: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.
- All these stratum layers have the basic basal cells as its foundation.
- These basal cells have a special ability to continuously divide and form new cells forming the skin.
The correct answer is (a.) synovial joints. The synovial joint has the least range of motion. Its function is to join or combines bones in the synovial cavity. The synovial is mostly composed of synovial fluid (which can be found in knees.)
