Tissue Engineering Mcqs

Q:

Which of the following is a characterization technique used to measure Young’s modulus of a biomaterial?

A) Tensile test B) Compression test
C) Three- and four-point bend test D) Calculation from the stress-strain curve
 
Answer & Explanation Answer: D) Calculation from the stress-strain curve

Explanation: Tensile test helps in measurement of tensile strength, Compression test helps in measurement of Compressive strength, three- and four-point bend test helps in measurement of flexural strength and calculations from stress-strain curve help in measurement of Young’s modulus.

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225
Q:

_____________ is the first process involved in Biomaterial-Tissue interaction.

A) Foreign Body Response B) Elongation
C) Adhesion D) Replication
 
Answer & Explanation Answer: A) Foreign Body Response

Explanation: All in all, the nature of the cooperation among biomaterials and tissues in the body can be portrayed by two primary procedures. The foreign body response (FBR), is particularly activated on account of an implantable gadget so as to shield the body from the remote material. Once the biomaterial gadget or platform is embedded in the body, a tissue/biomaterial interface straightforwardly structures and causes a progression of incendiary reactions.

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221
Q:

Constant stress test helps in measurement of ____________ for a biomaterial.

A) ductility B) toughness
C) creep D) fatigue
 
Answer & Explanation Answer: A) ductility

Explanation: Calculations from strength test help in measurement of Ductility, Single edge notched-beam Indirect measurement helps in measurement of Toughness, Constant stress test helps in measurement of Creep and Cyclic stress test help in measurement of Fatigue.

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212
Q:

Hydrogels consist of _________ functional groups.

A) hydrophilic B) hydrophobic
C) polar D) positively charged
 
Answer & Explanation Answer: A) hydrophilic

Explanation: Hydrogels derive their ability to retain water from the hydrophilic functional groups attached to the polymeric backbone.

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141
Q:

Induced pluripotent stem cells are _____________ in nature thus minimizing the chances of immune rejection.

A) autologous B) proliferative
C) differentiating D) adherent
 
Answer & Explanation Answer: A) autologous

Explanation: The most outstanding kind of pluripotent stem cell is the embryonic stem cell. Be that as it may, since the age of embryonic stem cell includes pulverization (or possibly manipulation) of the pre-implantation organize incipient organism, there has been much contention encompassing their utilization.

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119
Q:

________ is the technique used to detect genetic disorders.

A) Preimplantation genetic diagnosis (PGD) B) Gene therapy
C) Cell therapy D) Proliferation
 
Answer & Explanation Answer: A) Preimplantation genetic diagnosis (PGD)

Explanation: New human ES cell lines were set up from developing embryos with a hereditary issue, which were identified during the act of preimplantation genetic diagnosis (PGD). These new cell lines may give a superb in vitro model for concentrates on the impacts that the hereditary transformations have on cell expansion and separation.

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117
Q:

What is the first step in Biomaterial-tissue interactions?

A) Cell Migration B) Adsorption of proteins
C) Cell Development D) Cell adhesion
 
Answer & Explanation Answer: D) Cell adhesion

Explanation: The initial phase in biomaterial–tissue connection is the underlying adsorption of proteins onto the outside of the biomaterial, which, in a mix with the physical and multiple properties of the surface, is thought to prompt ensuing cell practices, for example, bond, spreading and expansion.

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114
Q:

The biomaterials are expected to mimic the functions of ____________

A) Extracellular Matrix (ECM) B) Transmembrane proteins
C) Cytoplasm D) Cell Organelles
 
Answer & Explanation Answer: A) Extracellular Matrix (ECM)

Explanation: TE depends on platform biomaterials that will have cells from the body and, with the assistance of development factors or a bioreactor, will ideally prompt tissue regeneration. These biomaterials are subsequently expected to mirror the ECM capacities and connections with the cells and the encompassing tissues. These connections have now moved past a straightforward association with the organic frameworks to impact the natural procedures that can prompt tissue recovery.

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