Skin cells (1 point)
have terminally differentiated. are stem cells.
become quiescent quickly. become senescent quickly.
have terminally differentiated: Correct. Skin cells undergo a process called terminal differentiation, in which they lose their ability to divide and become specialized for their specific function in the skin.
are stem cells: Incorrect. Stem cells are undifferentiated cells that have the ability to self-renew and differentiate into multiple cell types. While there are stem cells in the skin, the majority of skin cells are not stem cells.
become quiescent quickly: Incorrect. Quiescence refers to a non-dividing, resting state of cells. Skin cells are constantly dividing and replenishing themselves, so they are not typically quiescent.
become senescent quickly: Incorrect. Senescence refers to the state of irreversible cell cycle arrest, usually accompanied by changes associated with aging. Skin cells can become senescent over time due to factors like DNA damage or telomere shortening, but they do not become senescent quickly.
Which cell type undergoes terminal differentiation? (1 point) heart cells
epithelial cells hair cells stem cells
The correct answer is epithelial cells. Epithelial cells, which make up the majority of skin cells, undergo terminal differentiation.
In eukaryotic cells, DNA replicates in the (1 point) cytoplasm.
endoplasmic reticulum. nucleus.
cell membrane.
The correct answer is nucleus. In eukaryotic cells, DNA replication occurs within the nucleus.
Which of the following is a function of mitosis?
to send chemicals signals throughout the body
to make a cell exit the cell cycle to repair damaged tissue
to cause a cell to grow
The correct answer is "to cause a cell to grow." Mitosis is the process by which a single cell divides into two identical daughter cells. One of the main functions of mitosis is cellular growth, allowing an organism to develop and increase its cell number. Mitosis is not directly involved in sending chemical signals throughout the body or repairing damaged tissue, although it does play a role in tissue regeneration by producing new cells that can replace damaged cells.
What replicates during mitosis? (1 point) organelles
cytoplasm proteins cells