Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

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

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

What is the main job of the nucleolus?

1. AIt makes ribosomal RNA and builds ribosome parts
2. BIt releases energy from glucose for the nucleus
3. CIt digests worn-out parts of the cell
4. DIt stores water and salts for the nucleus

Which element is found in all organic molecules?

1. ACarbon
2. BSulfur
3. CNitrogen
4. DPhosphorus

Kada vyksta homologinių chromosomų pasikeitimas atkarpomis (krosingoveris)?

1. APirmosios mejozės profazėje
2. BInterfazės S fazėje
3. CAntrosios mejozės telofazėje
4. DMitozės anafazėje

Researchers randomly assign patients to receive either a new wound dressing or the standard dressing and compare healing times. What type of study is this?

1. AA case report
2. BAn observational study
3. CA controlled experiment
4. DA survey

Why must human gametes be haploid?

1. ASo that the gametes can divide quickly by mitosis
2. BSo that the gametes can make more proteins
3. CSo that the zygote has the normal number of 46 chromosomes
4. DSo that the zygote has twice the normal number of chromosomes

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

1. ADeer are producers in the food web
2. BOrganisms in a food web depend on each other
3. CWolves compete with trees for sunlight
4. DRemoving a predator has no effect on plants

A pre-mRNA is 3000 bases long, and 1200 bases of introns are removed. If all remaining bases code for amino acids, what is the largest number of amino acids in the protein?

1. A600
2. B400
3. C1000
4. D1800