Home
Class 11
BIOLOGY
Choose the wrong statement regarding bac...

Choose the wrong statement regarding bacterial cell
A. Glycocalyx is the outer most envlope in bacteria
B. The glycocalyx could be a loose sheath called capsule
C. The glycocalyx may be thick and tough called slime layer
D. A special structure formed by the plasma membrane is called mesosome
E. Small bristle like fibers sprouting out of the cell are called fimbriae

A

a and e are wrong

B

d and e are wrong

C

b and c are wrong

D

a and d are wrong

Text Solution

Verified by Experts

The correct Answer is:
C

* Glycocalyx is the outermost envelope in bacteria.
* Glycocalyx could be a loose sheath called slime layer.
Glycocalyx may be thick and tough called capsule.
* A special structure formed by the plasma membrane is called mesosome.
* Small bristle-like fibres sprouting out of the cell are called fimbriae.
Promotional Banner

Topper's Solved these Questions

  • CELL: THE UNIT OF LIFE

    A2Z|Exercise Section A: Topicwise Questions Topic 2 : Eukaryotic Cells And Endomembrane System (cell Membrane , C|35 Videos
  • CELL: THE UNIT OF LIFE

    A2Z|Exercise Section A: Topicwise Questions Topic 3 : Mitochondria , Plastids And Ribosomes|31 Videos
  • CELL CYCLE AND CELL DIVISION

    A2Z|Exercise Section D: Chapter-end Test|50 Videos
  • CHEMICAL COORDINATION AND INTEGRATION

    A2Z|Exercise Section D : Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

Glycocalyx (mucilage sheath) of a bacterial cell may occur in the form of a loose sheath called _________ or it may be thick and tough called ________.

Select correct statement(s) w.r.t cell envelope of bacteria. (a) It is a tightly bound three layered structure. (b) Glycocalyx could be a loose sheath called the capsule. (c) All layers of it,act together as a single protective layer.

Which of the folllowing statements regarding the skeleton are correct ? Please select all that apply. (a) The shaft of a long bone is called the diaphysis. (b) The "oraganic" "matrix" of bone is secreted by chondroblasts. (c) Dividing cartilage cells are situated in the marrow cavity of long bones (d) Bone remodelling is a function of the activty marrow cavity of long bones (e) The long bones develop from fibrous connective tissue (f) Most bones are formed by endochondral ossification of a hyaline cartilage model (g) The principal inorganic components of bones are calcium and phosphates.

Choose the correct and incorrect statements about viruses A. These were found to be smaller than bacteria because they passed through bacteria-proof filters. B. They are inert outside their specific host cell. C.No virus contains both RNA and DNA. D. The protein coat called capsid is made of small units called capsomeres. E. These capsomeres are arranged in helical and polyhedral geometric forms

Read the following statements and choose the correct option (A). Blood cells secrate fibres of structural proteins called collagen or elastin. (B) Neuroglial cells protect and support the nephrons. (C) Osteocytes are present in spaces called lacunae. (D) Striated muscle fibre are bundled togather in a parallel fashion. (E) Biseps are involuntry and striated

Choose the correct statements with respect to cell wall A. Precursor of cell plate is middle lamellum B. Primary cell wall is outer most layer of cell wall C. Materials of primary cell wall holds the cells together D. Middle lamellum is mainly composed of calcium pectate E. Cell wall and middle lamellae may be traversed by plasmodesmata F. Secondary wall is formed outside the primary wall in all the cases

Read the following statements and find out the incorrect statements. a. A synapse is formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron, which may or may not be separated by a gap called synaptic cleft. b. At electrical synapses, the membranes of pre-and post-synaptic neurons are in very close proximity. c. Electrical current can flow directly from one neuron into the other across chemical synapses. d. Impulse trasmission across a chemical synapse is always faster than that across a electric synapse. e. Electrical synapses are rare in our system.