Compare animal and plant cells; how are they different? How are they the same?
What will be an ideal response?
Both animal cells and plant cells have a plasma membrane, nucleus, mitochondria, endoplasmic
reticulum, ribosomes, and Golgi complex. Animal cells, however, do not have a cell wall, central
vacuole, or chloroplasts.
You might also like to view...
True or false: Marine fish have impermeable renal tubules, allowing them to reabsorb scarce elecrolytes without also reabsorbing water they are trying to eliminate
A. true B. false
Pumps are transporters that are able to harness energy provided by other components in the cells to drive the movement of solutes across membranes, against their concentration gradient. This type of transport is called:
What will be an ideal response?
During sexual reproduction, novel mixtures of alleles are generated. This is because ______
(a) in all diploid species, two alleles exist for every gene. (b) a diploid individual has two different alleles for every gene. (c) every gamete produced by a diploid individual has several different alleles of a single gene. (d) during meiosis, the segregation of homologs is random such that different gametes end up with different alleles of each gene.
Please choose the answer that best fills in the blanks of this sentence in the correct order. A molecular fragment of an antigen that serves as the primary signal that the molecule is foreign is called a(n) ______, whereas a small foreign molecule that can only elicit an immune response when linked to another larger molecule is called a(n) ________.
A) Allergen; hapten B) Epitope; immunoglobulin C) Epitope; hapten D) Hapten; epitope