Blood Components and Cell Biology Quiz

Platelets are tiny fragments of cells that help the blood to clot when an individual gets cut.

Blast cells are immature blood cells usually found in the bone marrow, where blood cells originate before circulation.

The innate classification of WBC refers to the cells that are present from birth and are generalists, meaning they do not defend against a specific enemy.

<p>Cell differentiation refers to the process where cells commit to perform specific jobs, allowing cells to specialize and perform specific functions in the body.</p> Signup and view all the answers

<p>Stem cells serve as a reservoir for other cells and remain undifferentiated, allowing them to develop into various specialized cell types as needed.</p> Signup and view all the answers

<p>G1: the cell grows and makes copies of organelles. S: DNA is duplicated. G2: the cell continues to grow and check integrity.</p> Signup and view all the answers

<p>During this stage, the cell performs its normal function while preparing to divide. It goes through various checks, including checking if it is old enough to divide, if the DNA has any mutations, if the signals to divide are present, and if the right number of similar cells are present.</p> Signup and view all the answers

<p>Sexually reproducing organisms have 2 copies of similar DNA, known as homologous chromosomes, which carry very similar genes. Different versions are known as alleles.</p> Signup and view all the answers

<p>Early prophase: Sister chromatids are visible and attached to the centromere, spindle fibers start forming the centriole, and chromatin becomes chromosomes. Late prophase: Sister chromatids are held by spindle fibers at the centromere and are randomly spread out. Metaphase: Sister chromatids meet at the equator of the cell. Anaphase: Sister chromatids are separated to opposite poles of the cell.</p> Signup and view all the answers

<p>Organelles are cellular structures that perform specific functions. During the S phase, DNA makes copies of itself.</p> Signup and view all the answers