Which statement concerning root hairs is not correct?
A. A root hair is isolated from its epidermal cell with a cross wall.
B. Root hairs increase the absorption of water and minerals.
C. Root hairs generally live only a few days before being sloughed off.
D. Root hairs are located in the zone of maturation of a root.
E. Root hairs are tubular extensions of individual epidermal cells.
Answer: A
You might also like to view...
Kinases are enzymes that can phosphorylate (transfer phosphate groups onto) macromolecules such as proteins. A particular kinase, Kinase 1 is known to promote cell division. It promotes cell division by phosphorylating Protein X. Phosphorylation of Protein X activates Protein X. Once activated, Protein X stimulates the production of other proteins such as Protein Y and Z that directly promote
cell division. In order to function, Kinase 1 requires the presence of Metal A. However, in the presence of Protein A, Kinase 1 is nonfunctional. From the description, what is considered a cofactor of Kinase 1? A. Protein X B. Protein Y C. Protein Z D. Metal A E. Protein A
The probability that a disease phenotype will appear when a disease-related genotype is present is called ____________________
Fill in the blank(s) with correct word
Congenital deafness in humans is due to the
homozygous condition of either of the recessive genes d or e, or both of these genes. Both dominant D and E are necessary for normal hearing. Gene D/d affects the middle ear, while gene E/e affects the inner ear. It does not matter how good the normal inner ear (as indicated by E__) is; if there is something wrong in the middle ear, the individual is unable to hear. The same applies for the other gene. Give the phenotypic results of the following crosses: (a) Dd EE x Dd EE (b) Dd Ee x Dd Ee (c) dd EE x DD ee (d) Dd EE x Dd ee (e) Dd EE x DD Ee What will be an ideal response?
Apicomplexans share a unique structure called a _________. The function of this structure has not been conclusively defined, however it is thought to be crucial to the survival of the parasite.
A) flagella B) apical complex C) pseudopod D) vector