Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Which piece of equipment gives the most precise measurement of a liquid volume?

1. AA beaker
2. BA graduated cylinder
3. CA Petri dish
4. DA test tube

What does xylem carry in a plant?

1. AOxygen from the leaves to the roots
2. BSugars from the leaves to the roots
3. CWater and minerals from the roots upward
4. DSeeds from the flowers to the soil

Which feature helps a sperm cell carry out its job?

1. AA flagellum for swimming
2. BA cell wall for protection
3. CChloroplasts for making food
4. DA large vacuole for storing water

What is an inversion mutation?

1. AA chromosome segment breaks off and is reattached the wrong way round
2. BA segment of a chromosome moves to a different, non-matching chromosome
3. CA segment of a chromosome is lost completely
4. DA whole extra chromosome is added to the cell

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

1. AT cells that recognise one virus
2. BMemory B cells from an earlier infection
3. CThe skin and stomach acid
4. DAntibodies made after vaccination

What is the role of cholesterol in animal cell membranes?

1. AIt stores the cell's genetic information
2. BIt carries glucose molecules across the membrane into the cell
3. CIt forms a rigid wall around the cell
4. DIt keeps membrane fluidity stable as temperature changes

An old idea says giraffes got long necks because each one stretched to reach leaves and passed the longer neck to its young. Why is this idea rejected?

1. AChanges acquired in a lifetime are not passed on in the genes
2. BOnly plants can pass on traits to offspring
3. CNeck length is not affected by any genes
4. DGiraffes do not eat leaves from tall trees, so stretching is not needed

A food sample turns purple with biuret reagent but stays yellow-brown with iodine solution. What does the sample contain?

1. ABoth protein and starch
2. BStarch but no protein
3. CFat but no protein
4. DProtein but no starch