Basic Science : Tools Techniques QUESTIONS AND ANSWERS :: part10 : 26 to 30
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
26.Protoplasm is |
| Emulsion |
| Complex colloidal solution |
| Molecular solution |
| Suspension |
27.Which is correct about cell theory in view of current status of our knowledge about cell structure |
| It needs modification due to discovery of subcellular structures like chloroplasts and mitochondria |
| Modified cell theory means that all living beings are composed of cells capable of reproducing |
| Cell theory does not hold good because all living beings (e.g., viruses) do not have cellular organisation |
| Cell theory means that all living objects consist of cells whether or not capable of reproducing |
28.Callus is |
| Material used in healing in phloem |
| Secondary tissue developed by woody plants |
| An undifferentiated mass of cells |
| All the above |
29.Given below are assertion and reason. Assertion Specialisation of cells is advantageous to organisms. Reason It increases operational efficiency |
| Both are true with reason being correct explanation |
| Both true but reason is not correct explanation |
| Assertion is true but reason is wrong |
| Both are wrong |
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