Questions on viral diseases such as the common cold and other infections. Includes causes, symptoms, prevention, and treatment approaches.
Interferons are proteins produced by virus-infected cells to help protect neighboring cells from viral infections.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
T-cytotoxic cells (CD8+ T-cells) are involved in cell-mediated immunity, which targets virus-infected cells.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Hepatitis B virus (HBV) primarily affects the liver, leading to inflammation and potential liver damage.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Interferons are not antibodies; they are signaling proteins that help prevent viral replication.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
HIV/AIDS is primarily transmitted through sexual contact, contaminated needles, and infected blood transfusions.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Interferons do not directly kill bacteria; they help protect cells from viral infections.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
T-helper cells (CD4+ T-cells) activate B-cells and cytotoxic T-cells to enhance immune responses.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Interferons are signaling proteins released by virus-infected cells that help protect nearby cells from viral replication.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
The oral polio vaccine contains live-attenuated poliovirus, which helps induce immunity without causing disease.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Interferons are proteins that help prevent viral replication and activate immune responses against infections.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Reverse transcriptase is an enzyme that converts the RNA of HIV into DNA, allowing it to integrate into the host genome.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
Wearing masks and covering the mouth while sneezing help prevent the spread of air-borne diseases like pneumonia and common cold.
Ref: NCERT Class 12 Biology Chapter 7: Human Health and Disease Common Diseases - Viral - Common Cold and Other Viral Diseases
