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प्रश्न
Mark the correct one as:
Assertion: Malaria is caused by Protozoa.
Reason: The disease is transmitted by mosquito.
विकल्प
If both assertion and reason are true and the reason is the correct explanation of assertion.
If both assertion and reason are true and reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
उत्तर
If both assertion and reason are true and the reason is the correct explanation of assertion.
APPEARS IN
संबंधित प्रश्न
Carrier of malaria-causing protozoan is ___________.
Can microorganisms be seen with the naked eye? If not, how can they be seen?
Match the pairs
| ‘A’ group | ‘B’ group | ||
| a. | Xylitol | 1. | Pigment |
| b. | Citric acid | 2. | To impart sweetness |
| c. | Lycopene | 3. | Microbial restrictor |
| d. | Nycin | 4. | Protein binding emulsifier |
| 5. | To impart acidity | ||
Which precautions are necessary for proper decomposition of domestic waste?
Use the Whittaker method to classify bacteria, protozoa, fungi, algae, prokaryotic and eukaryotic microbes.
Find out my partner
| A | B |
| Fungi | Chlorella |
| Protozoa | Bacteriophage |
| Virus | Candida |
| Algae | Amoeba |
| Bacteria | Prokaryotic |
State whether the following statement is true or false. Explain your statement.
Tomato wilt is a viral disease.
Who am I?
I reproduce mainly by cell division.
Draw a neat and labelled diagram.
Different types of bacteria.
Draw a neat and labelled diagram.
Bacteriophage.
What are micro-organisms?
Complete the following conceptual picture:
Name the four major groups of Microbes.
Unscramble the jumbled word underlined in the following statement.
Cells of our body produce santiidobe to fight pathogens.
Match the names of scientists given in Column A with the discovery made by them given in Column B.
| Column A | Column B |
| (a) Louis Pasteur | (i) Penicillin |
| (b) Robert Koch | (ii) anthrax bacterium |
| (c) Edward Jenner | (iii) Fermentation |
| (d) Alexander Fleming | (iv) small pox vaccine |
| (v) Typhoid |
Paheli watched grandmother making mango pickle. After she bottled the pickle, her grandmother poured oil on top of the pickle before closing the lid. Paheli wanted to know why oil was poured? Can you help her understand why?
Yeasts are a rich source of ______.
Vaccines stimulate the body to produce ______ against the ______ in the microbes.
Assertion: Bacillus Thuringiensis is a biocontrol agent.
Reason: It produces a protein called ‘cry protein’ which kills insect larva.
