उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What is an antigen?

1. AA molecule that the immune system sees as foreign
2. BA protein that carries oxygen
3. CA drug that kills viruses
4. DA white blood cell that engulfs and digests bacteria

Which group of biomolecules forms the basic bilayer of the cell membrane and also stores long-term energy?

1. AProteins
2. BNucleic acids
3. CCarbohydrates
4. DLipids

प्रकाश संश्लेषण किस कोशिकांग में होता है?

1. Aकेंद्रक
2. Bक्लोरोप्लास्ट
3. Cगॉल्जी उपकरण
4. Dमाइटोकॉन्ड्रिया

जीवाणु सामान्यतः प्रजनन कैसे करते हैं?

1. Aबीज बनाकर
2. Bअर्धसूत्री विभाजन द्वारा
3. Cद्विविखंडन द्वारा
4. Dविषाणुओं को मुकुलित करके

वैज्ञानिक सिद्धांत (थ्योरी) परिकल्पना से किस प्रकार भिन्न है?

1. Aयह बहुत-से परखे हुए प्रमाणों द्वारा समर्थित व्यापक स्पष्टीकरण है
2. Bसिद्धांत एक प्रयोग का परिणाम है
3. Cसिद्धांत को नए आँकड़ों से कभी बदला नहीं जा सकता
4. Dसिद्धांत एक अनुमान है जिसका अभी परीक्षण नहीं हुआ

How does cytokinesis differ between animal cells and plant cells?

1. AOnly plant cells carry out cytokinesis
2. BAnimal cells build a cell plate; plant cells pinch in with a furrow
3. CAnimal cells pinch in with a furrow; plant cells build a cell plate
4. DOnly animal cells carry out cytokinesis

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese cells divide by meiosis instead of mitosis
2. BThese tissues are made only of haploid cells
3. CThese cells have no mitochondria
4. DThese tissues also contain rapidly dividing cells

Why can a scientific hypothesis never be proven true with absolute certainty?

1. ANew evidence could always contradict it in the future
2. BEvery experiment contains a mistake
3. CScientists are not allowed to reach any conclusions
4. DHypotheses are only opinions and cannot be tested