Phiếu bài tập Sinh học cho kỳ thi đầu vào điều dưỡng có đáp án

What is a heterotroph?

1. AAn organism with no cells
2. BAn organism that gets its food from other organisms
3. CAn organism that makes its own food by photosynthesis
4. DAn organism that lives only in water

What is the single most important way to prevent the spread of infection in hospitals?

1. AOpening the windows
2. BWearing a hair net
3. CGiving every patient antibiotics
4. DHand hygiene

What is an adaptation?

1. AAn inherited trait that helps an organism survive in its environment
2. BA disease that weakens a population
3. CA change an organism makes during its lifetime that it then passes on
4. DAny mutation that damages a gene

Many vitamins act as coenzymes. What does this mean?

1. AThey help enzymes carry out their reactions
2. BThey are built into the cell membrane
3. CThey are digested to release large amounts of energy
4. DThey replace enzymes that have been denatured

Why do many plants close their stomata on hot, dry days?

1. ATo reduce water loss
2. BTo speed up photosynthesis
3. CTo release more oxygen
4. DTo take in more carbon dioxide

Which of these is part of the body's innate (non-specific) defence?

1. AAntibodies made after vaccination
2. BMemory B cells from an earlier infection
3. CT cells that recognise one virus
4. DThe skin and stomach acid

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

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

Nhiễm sắc thể chính của vi khuẩn nằm ở đâu, và nó có thể mang thêm DNA nào?

1. ATrong vùng nhân, cùng các plasmid nhỏ
2. BTrong thành tế bào, cùng các gene RNA
3. CTrong ribosome, cùng các nhiễm sắc thể phụ
4. DTrong nhân, cùng DNA ty thể