Download App

Why Do We Fall — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWhy Do We Fall3 Marks
Question
Why antibiotics effective against bacteria but not against viruses?
✓

Answer

Antibiotics are effective against bacteria but not against viruses. Antibiotics block specific pathways found in bacteria. Viruses do not have their own metabolic pathways, therefore, in order to reproduce us to use the metabolic pathways of the cells they infect.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 3 Mark )" from Why Do We Fall→Why Do We Fall — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

What makes biosphere dynamic but stable system?
→
Write three equations of uniformly accelerated motion. Also, state the symbols used
→
What would happen if poultry birds are larger in size and have no summer adaptation capacity? In order to get small sized poultry birds, having summer adaptability, what method will be employed?
→
When a cricket ball is thrown vertically upwards, it reaches a maximum height of $5$ meters.
  1. What was the initial speed of the ball?
  2. How much time is taken by the ball to reach the highest point$? (g = 10\ ms^{-2})$
→
Which method is better for recovering sugar from sugar solution: evaporation or crystallization? Give reason for your answer.
→
It has been observed that despite the availability of the vaccine for Hepatitis $A$ in the market, it may not be necessary to be given to children by the time they are $5$ years old. Why?
→
State Newton’s first law of motion. Give two examples to illustrate Newton’s first law of motion.
→
How are given mass, molar mass and number of moles related to each other?
→
The following data represents the distribution of electrons, protons and neutrons in atoms of four elements A, B, C, D.
ElementProtonsNeutronsElectrons
A101010
B111211
C121212
D131413
Solve the following questions.
i. Write the electronic distribution of atoms of elements A and D.
ii. Element A is an inert gas. Why?
iii. What is the valency of element C?
→
Are the answers to the above questions necessarily the same or different? Why?
→