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

What is a neuron?

1. AA nerve cell that carries electrical signals
2. BA blood cell that carries oxygen around the body
3. CA bone cell that stores calcium
4. DA muscle cell that contracts

What does it mean that a cell membrane is selectively permeable?

1. AIt lets some substances cross but not others
2. BIt lets no substance cross at all
3. CIt lets only water molecules cross
4. DIt lets every substance cross freely in both directions

Which substances are used up in aerobic cellular respiration?

1. AOxygen and water
2. BCarbon dioxide and water
3. CGlucose and carbon dioxide
4. DGlucose and oxygen

Why do plants wilt when the soil around their roots becomes very salty?

1. ASalt makes the root cells swell and burst
2. BThe roots take in too much water
3. CWater leaves the root cells by osmosis
4. DSalt blocks sunlight from reaching the leaves

In a eukaryotic cell, where does transcription take place?

1. AIn the Golgi apparatus
2. BOn ribosomes in the cytoplasm
3. CIn the lysosomes
4. DIn the nucleus

What does Mendel's law of segregation state?

1. AGenes on different chromosomes are always inherited together
2. BDominant alleles are more common in a population than recessive ones
3. CThe two alleles of a gene separate so each gamete gets only one
4. DEach gamete receives both alleles of every gene

Mature human red blood cells have no nucleus and no mitochondria. What follows from this?

1. AThey make ATP by aerobic respiration using the oxygen they carry
2. BThey keep making new haemoglobin throughout their life
3. CThey cannot divide and make their ATP by glycolysis only
4. DThey live longer than almost all other body cells

After wolves are removed from a park, the deer population rises sharply and young trees are overgrazed. What does this show?

1. AWolves compete with trees for sunlight
2. BRemoving a predator has no effect on plants
3. COrganisms in a food web depend on each other
4. DDeer are producers in the food web