|
Write 10 lines on the usefulness of microorganisms in our lives
|
|
1
|
53893
|
July 2, 2018
|
|
What are antibiotics? What precautions must be taken while taking antibiotics?
|
|
0
|
1476
|
March 22, 2018
|
|
Write a short paragraph on harms caused by microorganisms
|
|
0
|
4283
|
March 22, 2018
|
|
Write 10 lines on usefulness of microorganisms in our lives
|
|
0
|
1173
|
March 22, 2018
|
|
Complete the following cycle given below by filling the blanks (a), (b), (c), (d)
|
|
0
|
2399
|
March 22, 2018
|
|
How can we prevent the following diseases? Cholera Typhoid Hepatitis A
|
|
0
|
4890
|
March 22, 2018
|
|
Give reasons for the following. Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling
|
|
0
|
9173
|
March 22, 2018
|
|
Observe the figure given below and answer the following questions. Name the microorganism and the group to which it belongs. Name the food item on which the organism grows. Does it grow well in dry or in moist conditions? Is it safe to eat infected bread
|
|
0
|
5830
|
March 22, 2018
|
|
Observe the set-up given below and answer the following questions.What happens to the sugar solution in A? Which gas is released in A? What changes will you observe in B when the released gas passes through it?
|
|
0
|
4538
|
March 22, 2018
|
|
Observe the figure given below and answer the questions that follows, Write the name of the disease
|
|
0
|
1506
|
March 22, 2018
|
|
How do vaccines work?
|
|
0
|
15615
|
March 22, 2018
|
|
What are the major groups of microorganisms?
|
|
0
|
11125
|
March 22, 2018
|
|
Name two diseases that are caused by virus. Write one important characteristic of virus
|
|
0
|
935
|
March 22, 2018
|
|
What will happen to ‘pooris’ and ‘unused kneaded flour’ if they are left in the open for a day or two?
|
|
0
|
4662
|
March 22, 2018
|
|
While returning from the school, Boojho ate chaat from a street hawker. When he reached home, he felt ill and complained of stomach ache. What could be the reason?
|
|
0
|
6411
|
March 22, 2018
|
|
Classify the following into friendly and harmful microorganisms. Yeast, malarial parasite, Lactobacillus, bread mould, Rhizobium, Bacillus anthracis
|
|
0
|
4391
|
March 22, 2018
|
|
How can we control the spread of malaria or dengue?
|
|
0
|
5224
|
September 16, 2017
|
|
Write a short paragraph on the harms caused by microorganisms
|
|
0
|
1323
|
September 16, 2017
|
|
Describe the nitrogen cycle with the help of a neat and labelled diagram
|
|
0
|
3277
|
September 16, 2017
|
|
What will happen if yeast powder is put in sugar solution and kept for few hours ? Name the process
|
|
0
|
2953
|
September 16, 2017
|
|
How does food become ‘poison’?
|
|
0
|
920
|
September 16, 2017
|
|
Give the methods of prevention of cholera
|
|
0
|
676
|
September 16, 2017
|
|
How can you prevent the spread of communicable diseases?
|
|
0
|
864
|
September 16, 2017
|
|
How is common cold spread?
|
|
0
|
1733
|
September 16, 2017
|
|
How does a vaccine act?
|
|
0
|
986
|
September 16, 2017
|
|
What will happen if you take antibiotics when not needed?
|
|
0
|
1278
|
September 16, 2017
|
|
What are antibiotics?
|
|
0
|
1420
|
September 16, 2017
|
|
How does a housefly transmit diseases?
|
|
0
|
1269
|
September 16, 2017
|
|
Write two differences between autotrophic and heterotrophic bacteria
|
|
0
|
1603
|
September 16, 2017
|
|
Are bacteria plants or animals ? Give reasons in support of your answer
|
|
0
|
1617
|
September 16, 2017
|