उत्तरों सहित नर्सिंग प्रवेश परीक्षाओं के लिए जीव विज्ञान वर्कशीट

What is endocytosis?

1. AReleasing material from the cell by fusing vesicles with the membrane
2. BTaking material into the cell by folding the membrane around it
3. CMoving water across the membrane by osmosis
4. DSplitting the cytoplasm after the nucleus divides

Which characteristic is shared by all living things?

1. AThey make their own food by photosynthesis
2. BThey have a backbone and a brain
3. CThey respond to changes in their environment
4. DThey are made of many cells

Which substances are used up in aerobic cellular respiration?

1. AGlucose and carbon dioxide
2. BOxygen and water
3. CGlucose and oxygen
4. DCarbon dioxide and water

Which is an example of negative feedback?

1. AA wound becoming more inflamed over time
2. BSweating when body temperature rises
3. CBlood clotting speeding up once it starts
4. DContractions growing stronger during labour

विषाणु की मूल संरचना क्या है?

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

What happens during telophase of mitosis?

1. AThe DNA is copied for the next division
2. BThe sister chromatids are pulled apart
3. CA nuclear envelope forms around each set of chromosomes
4. DThe chromosomes line up across the middle of the cell

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ANoncompetitive inhibition
2. BSubstrate saturation
3. CDenaturation by heat
4. DCompetitive inhibition

A single-celled organism has a nucleus, no cell wall and swims using cilia. In which group is it best placed?

1. AProtists
2. BFungi
3. CPlants
4. DBacteria