Tag: zoology

Questions Related to zoology

The common type of bioreceptor interaction involves _____________.

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Antigen-antibody

  2. Enzyme-ligand

  3. Nucleic acid- DNA

  4. All of the above

Show answer
Correct Option: D

Oxidation of ethanol can be sensed by which of the following biosensor?

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Electrochemical biosensor

  2. Microbial biosensor

  3. Ozone biosensor

  4. None of the above

Show answer
Correct Option: A
Explanation:

A- Electrochemical biosensors are simple tools which are utilized to determine the measurement of electronic current or conductance changes done by the bio-electrodes. The electrochemical sensor converts the electrochemical information into an analytical signal. This type of biosensor is generally made up of two basic parts - a biological component & an electronic component.

Blood glucose biosensor is an example of ___________.

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Conduct metric biosensor

  2. Potentiometric biosensor

  3. Amperometric biosensor

  4. None of the above

Show answer
Correct Option: C
Explanation:
Amperometric biosensors are biosensors which function by the production of a current when a potential is applied between two electrodes. One of its application is the determination of glucose concentrations by the use of an immobilised glucose oxidase membrane. Reaction results in a reduction of the oxygen concentration as it diffuses through the biocatalytic membrane to the cathode, this being detected by a reduction in the current between the electrodes
So, the correct answer is option C.

Which of the following biosensors is used for medical diagnostics and forensic science?

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Ozone biosensor

  2. DNA biosensor

  3. Microbial biosensor

  4. Both B and C

Show answer
Correct Option: B
Explanation:

DNA biosensors have various applications, commonly used for medical diagnostics, forensic science, agriculture, or even environmental clean-up efforts. It function as the two strands of DNA stick to each other by virtue of chemical attractive forces and that is, two strands that match up at every nucleotide position gives rise to a fluorescent signal that is then transmitted to a signal generator.

So, the correct answer is option B.

Consider the following statement.
Biosensors are used in:
a. In vitro diagnostics
b. Detection of microbial contaminants in food
c. Monitoring pollutants in the biotic component of environment.
Which of the statements given is/are correct?

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. $1$ and $2$ only

  2. $2$ only

  3. $1$ and $3$ only

  4. $1, 2$ and $3$

Show answer
Correct Option: A

Which of the enzyme can be used in electrochemical biosensors?

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Ligase

  2. Endonuclease

  3. Dehydrogenase

  4. None of the above

Show answer
Correct Option: C
Explanation:

Electrochemical biosensors are those biosensors that are mostly based on enzymes and catalyses the reaction that produces or consumes electrons. The reactions are redox types and the enzymes that catalyze these oxidations are called dehydrogenases.

So, the correct answer is option C.

Which of the following is considered as a physical component of biosensor?

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Analyte

  2. Amplifier

  3. Transducer

  4. Both B and C

Show answer
Correct Option: D

____ are miniaturized labs which help in detection of diseases.

zoology biotechnology: general introduction application of biotechnology miscellaneous applications of biotechnology application of biology in therapy and vaccine

  1. Biotech labs

  2. Biomolecular labs

  3. Biolabs

  4. Biochips

Show answer
Correct Option: D
Explanation:

In molecular biology, biochips are essentially miniaturized laboratories that can perform hundreds or thousands of simultaneous biochemical reactions. Biochips enable researchers to quickly screen large numbers of biological analytes for a variety of purposes, from disease diagnosis to detection of bioterrorism agents.

Myoglobin occurs in

zoology musculo-skeletal system red and white muscle types of muscle fibres locomotion and movements

  1. White muscle fibres

  2. Red muscle fibres

  3. Involuntary muscles

  4. All of the above

Show answer
Correct Option: B
Explanation:
  • Muscle is a  bundle of fibrous tissue in a body that has the ability to contract, producing movement in or maintaining the position of parts of the body.
  • The total number of muscles in the human body comes in the range of 640-850.
  • Muscles appear in red color due to a pigment called myoglobin. It receives oxygen from the red blood cells and transports it to the mitochondria of muscle cells, where the oxygen is used in cellular respiration to produce energy. Hence myoglobin occurs in red muscle fibers. So, the correct answer is 'Red muscle fibers'.

Collagen fibres are ____________.

zoology musculo-skeletal system red and white muscle types of muscle fibres locomotion and movements

  1. White

  2. Yellow

  3. Pale

  4. Brown

Show answer
Correct Option: A
Explanation:

  • Collagen is a type of protein fibre found abundantly throughout our body.
  •  It provides strength and protects many different areas of the body, including the skin.
  •  These White fibres, made up of collagen are white and shining which are strong, non-elastic and tough. 
  • More specifically, collagen is found in our various types of connective tissues such as cartilage, tendons, bones, and ligaments. Hence, collagen fibres are white.
So, the correct answer is 'white'.