Correct option is B
Rhino viruses represent one such group of viruses which cause one of the most infectious human ailments – the common cold.
Read the following passage and answer the questions:
Many viruses cause diseases in human beings. The virus that cause common cold infect the nose and respiratory passage but not the lungs. The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness, etc., which usually last for 3-7 days. Droplets resulting from cough or sneezes of an infected person are either inhaled directly or transmitted through contaminated objects such as pens, books, cups, doorknobs, computer keyboard or mouse, etc., and cause infection in a healthy person
Rhino viruses represent one such group of viruses which cause one of the most infectious human ailments – the common cold.
Bacteria like Streptococcus pneumoniae and Haemophilus influenzae are responsible for the disease pneumonia in humans which infects the alveoli (air filled sacs) of the lungs.
Tuberculosis, COVID-19 and common cold all spread by cough and sneezes.
The common cold is characterised by nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness, etc., which usually last for 3-7 days.
Dysentery, plague, diphtheria, etc., are some of the other bacterial diseases in man.
Match Column ‘A’ with Column ‘B’ and select the suitable answer from the codes given below:
Column I | Column II |
|---|---|
A. Leishmania donovani | {i}Malaria |
B. Wuchereria bancrofti | {ii}Amoebiasis |
C. Trypanosoma gambiense | {iii}Kala azar |
D. Entamoeba histolytica | {iv}Sleeping sickness |
(v) Filariasis |
Which of the following statement(s) is/are correct?
{i}Collagen is the most abundant protein in animals.
{ii}RuBisCO is the most abundant protein in plants.
{iii}Z-DNA is the most common double helical structure found in nature.
Match Column I (taxonomic rank) with Column II (example/term) and choose the correct code.
Column I | Column II |
|---|---|
A. Family | {i}Solanum |
B. Kingdom | {ii}Solanaceae |
C. Order | {iii}lycopersicum |
D. Species | {iv}Plantae |
E. Genus | (v) Solanales |
Given below are two columns:
Column I lists the names of scientists and Column II lists the discoveries made by them towards understanding photosynthesis in plants.
Match the scientists with the corresponding discoveries and choose the correct code.
Column I | Column II |
|---|---|
A. J.B. Van Helmont | {i}Starch is the first visible product of photosynthesis |
B. Stephen Hales | {ii}Water of soil contributes to the growth of plants |
C. Engelmann | {iii}Green plants get nourishment through their leaves from air and sunlight |
D. Sachs | {iv}Action spectrum of photosynthesis |
Match the components of the Electron Transport System (ETS) of aerobic respiration with their respective electron carriers.
Column I | Column II |
|---|---|
A. Complex I | {i}Cyt c → O₂ |
B. Complex II | {ii}NADH → CoQ |
C. Complex III | {iii}Succinate → CoQ |
D. Complex IV | {iv}CoQH₂ → Cyt c |
Observe the columns and match the plants/types in Column I to the morphological forms in Column II.
Column -I | Column- II |
|---|---|
A. Scape | i. Tinospora |
B. Culm | ii. Grasses |
C. Liana | iii. Onion |
D. Creeper | iv. Bamboo |
Choose the correct answer from the codes given below:
Consider the statements — identify the incorrect ones:
A. Inulin is a polymer of fructose.
B. Starch is present as storehouse of energy in plants.
C. Cellulose is a polymer of sucrose.
D. Chitin is a heteropolymer.
Choose the correct answer:
Human placenta is derived from:
Hormones secreted by the placenta to maintain pregnancy are:
Match Column ‘A’ with Column ‘B’ and select the suitable answer from the codes given below:
Column I | Column II |
|---|---|
A. Leishmania donovani | {i}Malaria |
B. Wuchereria bancrofti | {ii}Amoebiasis |
C. Trypanosoma gambiense | {iii}Kala azar |
D. Entamoeba histolytica | {iv}Sleeping sickness |
(v) Filariasis |