Question

question 3
if cytokinesis fails after mitosis, what is the likely result?
o a cell death due to missing chromosomes
b two genetically unique haploid cells
o c a single cell with two nuclei
o d a cell with half the normal dna content

question 4
glucose is needed by all cells in order to do cellular respiration. how does glucose, a large molecule, enter cells without using cell energy?
o a osmosis moving against the concentration gradient
b by employing active transport
o c via channel proteins using facilitated diffusion
o d using proteins pumps and atp

question 5
which cells do not respond to the signals that regulate the growth of most cells?
o a cancer cells
o b g0 cells
o c immortal cells
o d stem cells

Explanation:

Question 3

Mitosis is the process of nuclear division. Cytokinesis is the process of cytoplasmic division. If cytokinesis fails after mitosis, the cell will have completed nuclear division (resulting in two nuclei) but not cytoplasmic division. So, the result is a single cell with two nuclei. Cell death due to missing chromosomes (a) is not relevant here as mitosis distributes chromosomes properly. Mitosis produces diploid cells (not haploid as in b). DNA content doubles before mitosis and is equally divided during mitosis, so d is incorrect.

Osmosis (a) is the movement of water. Active transport (b) and using protein pumps with ATP (d) require energy. Facilitated diffusion (c) is a passive process (no energy used) that uses channel or carrier proteins to move large molecules (like glucose) down their concentration gradient.

Cancer cells (a) have lost the ability to respond to normal growth - regulating signals. G0 cells (b) are in a resting state but can respond to signals. Immortal cells (such as some cancer - like cell lines) are a misnomer in the context of normal growth regulation (cancer cells are the key non - responding cells). Stem cells (d) can respond to signals for differentiation and growth.

Answer:

C. A single cell with two nuclei

Question 4