In a procaryotic cell the enzymes for energy metabolism are

In a procaryotic cell, the enzymes for energy metabolism are located ___, but in a cucaryotic cell these enzymes are concentrated in ___: (a) rough endoplasmic reticulum, mitochondria, (b) mitochondria, rough endoplasmic reticulum, (c) cell membrane, rough endoplasmic reticulum, (d) cell membrane/mitochondria, (c) chromatophores. mitochondria. Three organisms have been analyzed for the Cytosine content of their DNA. If organism A has a GC ratio of 15%, organism B has a GC ratio of 30%, and organism C has a GC ratio of 9%. you can interpret this to mean: A is more related to B than to C, A is not related to B but may be related to C. A is not related to C but may be related to B, A is more related to C than to B. A is clearly unrelated to both B and C, A is clearly related to C. this technique cannot be used to obtain this information. During endospore formation: (a) the DNA of the cell is replicated but the cells do not divide, (b) the DNA of the cell is walled off from the rest of the cell to enable the water content of the cell to increase while calcium and dipicolinic acid content increases., (c) the DNA of the cell is walled off from the rest of the cell to enable the water content of the cell to decrease while calcium and acid content decrease, the DNA of the cell is walled off from the rest of the cell to enable the water content of the cell to decrease while the calcium and dipicolinic acid content increase. True motility in bacteria is demonstrated: (a) by showing the presence of flagella with proper staining techniques, (b) showing diffuse growth following a stab inoculation of a semisolid medium, (c) using a hanging drop preparation (d) examining a wet mount, (e) all of the above. Homophiles would be expected to grow: 0 in hot swings, (b) on the human body.(c) at refrigeration temperatures, (d) at low pH, (e) under conditions of high salt concentrations. The 70s ribosome\'s: (a) will be inefficient in protein synthesis, (b) cannot perform protein synthesis unless attached to an internal membrane.(c) will form when protein synthesis is needed, (d) are scattered loosely in the prokaryote cytoplasm. (e) perform photosynthesis in cyan bacteria. The process of endosperm formation: (a) results in two offspring from each parent, (b) is the product of a primitive type of sexual reproduction. (c) is a survival mechanism with no reproductive function.(d) is a survival mechanism that is tied to asexual reproduction. (e) occurs between each asexual generation. Which of the following is found in prokaryotic cells but not in eukaryotic cells (a) pili, (b) mitotic spindle, (c) visible chromosomes.(d) nucleons, (e) sterols.

Solution

Ans. 2) ‘d’ (In prokaryotes , the energy metabolism take place in cell membrane while in eukaryotes mitochondria)

5) ‘d’ Motility can be observed by analyzing the cells in a wet mount.

6) ‘e’ (Halophiles grow in high salt concentration)

7) ‘c ’ (There is no reproductive phenomenon take place during endospore formation)

8) ‘a’ (Pili is found in prokaryotes but not in eukaryotic cells)