Question

55. As they flow over rotten logs as a fluid s heet, slime molds appear to lack any partitioning isto Individual cells; however, slime molds do become The surface of some parasitic n material that contains many nuclel and cell These tissues consume food and produce wastes. In light of the cell theory that "all living things are composed of cells," then a) these tissues are not living because they are not cellular b) these tissues are obviously a bridge between nonliving and primitive living cells c) the general concept of life-is-cellular still holds because these cellular when they change form to produce spores s and some insect tissues are a um" or layer ofliving but lacks partitioning by cell are cellular at specific stages in their life cycle, but this shows that cell this proves that a "vital force" beyond cell chemistry can give life to partitions can be d) 56. Which of the following gives rise to both lysosomes and vesicles? b) mitochondria c) Golgi apparatus d) Ri 57. What is the smallest unit of living matter? a) atom b) Golgi apparatus c) cell d) Nuc 58. Which of the following features is unique to bacterial cells? a) nucleoid region b) nucleus c) cell membrane d) cell wall 59. Which of the following features is NOT found in a bacteríal cell?13 a) cell wall b) nucleus c) cell membrane d) ribosome 60. Which statement is NOT true about bacteria? a) Bacteria contain membrane bound organelles thetic c) Some are motile due to flagella. d) All bacteria are prokaryotes 61. Which statement is NOT true about bacterial anatomy? a) The cell wall is located outside of the plasma membrane. b) The glycocalyx sheath is located inside the cell wall c) There may be small rings of accessory DNA called plasmids d) Bacteria may have fimbriae that help attach the bacteria to other structures 62. An amino sugar called N-acetylmuramic acid is an important building block of the cell wall of some bacteria. Penicillin prevents this amino sugar from being incorporated into the bacterial cell wall. Therefore, a) penicillin affects bacteria but not eukaryotes because eukaryotic cell walls are different al cells that had already formed their cell walls would be unaffected c) penicillin would stop the growth of active colonies of susceptible bacteria d) All of the choices are correct

Answer 1

55. C

Eventhough some organisms lack partitioning, they are considered as giant cells that are multinucleated.

56. C golgi apparatus

Both vesicles and lysosomes are derived from golgi apparatus. The protein sorting for lysosomes is also done in golgi.

57. C cell

Cell is the basic smallest and functional unit of life or living matter.

58. A nucleoid

Bacteria are prokaryotic cells that do not have nucleus but do have genetic material which is present in the necleoid region. cell wall wall is also present in plant cells. nucleus is present in eukaryotic cells.

59. B nucleus

As mentioned above, a specific nucleus is absent in bacteria.

60. A

Since bacteria are prokaryotes, they do not contain nuclei and other membrane bound organelles.

61. B

Cell coat or glycocalyx is a carbohydrate coating on cell surface. It helps to protect the cell surface from mechanical and chemical damage.

62. D

Penicillin kills bacteria by preventing the crosslinking between the peptidoglycans in the cell wall. When the bacteria divides, penicillin interferes with the formation of new cell walls. The new bacterium contain holes in the cell wall through water and surrounding solution enters the cell affecting turgor pressure and hence the cell dies.