Basic Science : Diversity Living World QUESTIONS AND ANSWERS :: part5 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.Hydrogen bond is established between |
| Nonpolar interaction between 2 electroneutral atoms of different molecules |
| Nonpolar interaction between two electroneutral atoms of the same molecule |
| Partially electropositive hydrogen atom of one molecule and partially electronegative atom of another molecule |
| Partially electronegative hydrogen atom and partially electropositive atom of same or different molecule |
17.Which is responsible for impulse conduction in a nerve fibre |
| l’ ions |
| Na ⁺ ions |
| Glucose |
| DNA |
18.Chemical signals to brain by receptor molecules establish |
| Weak bonds |
| Strong bonds |
| Permanent bonds |
| Both B and C |
19.Organismic biology is related to the study of |
| Tissues |
| Organs |
| Organ systems |
| All the above |
20.Polar covalent bonds occur in |
| Oxygen |
| Hydrogen |
| Nitrogen |
| Water |
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