उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What is the cytoplasm?

1. AThe stiff outer layer of cellulose that surrounds a plant cell
2. BThe jelly-like contents between the membrane and nucleus
3. CThe fluid found only inside the nucleus
4. DThe space between two neighbouring cells

In science, what is an observation?

1. AA rule that explains all known facts
2. BInformation gathered with the senses or instruments
3. CA guess about why something happens
4. DA conclusion drawn before any data are collected

What is an inference?

1. AA variable that the scientist changes on purpose
2. BA list of the materials used in an experiment
3. CA measurement taken with a calibrated instrument in a laboratory
4. DA conclusion reached from observations and prior knowledge

विषाणु की मूल संरचना क्या है?

1. Aकोशिका भित्ति से घिरा केंद्रक
2. Bराइबोसोम और माइटोकॉन्ड्रिया वाली एक कोशिका
3. CDNA या RNA रहित अमीनो अम्लों की शृंखला
4. Dप्रोटीन आवरण के भीतर आनुवंशिक पदार्थ

The results of an experiment do not support the hypothesis. What should the scientist do next?

1. ARevise the hypothesis and test it again
2. BChange the data so they fit the hypothesis
3. CStop doing any further research on the question
4. DReport that the hypothesis was proven correct

What is the main role of inflammation after an injury?

1. ATo make antibodies inside the damaged cells
2. BTo destroy the healthy cells around the wound
3. CTo stop all blood flow to the area so that bleeding ends
4. DTo bring more blood and white blood cells to the area

Why are there usually far fewer top predators than herbivores in an ecosystem?

1. AHerbivores eat the young of top predators
2. BTop predators need less energy than herbivores
3. CEnergy is lost at each step, leaving little for the top level
4. DTop predators reproduce faster than herbivores, so they die sooner

Bacteria from hot springs have enzymes that work best at about 80 °C, while most human enzymes work best near 37 °C. What is the best explanation?

1. AHigh temperature never affects any enzyme
2. BTheir enzymes have structures that stay stable at high temperatures
3. CTheir enzymes do not have an active site, so heat cannot affect them
4. DTheir enzymes are made of lipids, not proteins