Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

Which of these hormones is a steroid?

1. AInsulin
2. BGlucagon
3. CTestosterone
4. DGrowth hormone

What is a genetically modified organism (GMO)?

1. AAn organism produced by normal sexual reproduction between two parents
2. BAn organism that has caught a virus
3. CAn organism whose DNA has been changed by genetic engineering
4. DAn organism that has been grown in a greenhouse

Bir deneyde bağımsız değişken nedir?

1. AHiçbir uygulama almayan grup
2. BAraştırmacının bilerek değiştirdiği etken
3. CSonuç olarak ölçülen etken
4. DHer grupta aynı tutulan etken

Many vitamins act as coenzymes. What does this mean?

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

Why does each type of virus infect only certain kinds of cells?

1. AIt must find cells with the same DNA as its own
2. BIt can only enter cells that are dividing by meiosis at that time
3. CIt must attach to specific receptor proteins on the cell surface
4. DIt can only enter cells that have no nucleus

The genetic code is described as nearly universal. What does this mean?

1. AEvery cell in the body makes the same proteins
2. BAll organisms have exactly the same genes
3. CAll organisms have the same number of chromosomes in their cells
4. DThe same codons mean the same amino acids in nearly all organisms

Tek bir bakteri her 20 dakikada bir bölünüyor. Hiçbiri ölmezse 2 saat sonra kaç bakteri olur?

1. A128
2. B32
3. C64
4. D12

Why do cells get far more ATP from glucose when oxygen is present than when it is absent?

1. AWithout oxygen only glycolysis runs, giving a net of 2 ATP per glucose
2. BWithout oxygen, glucose cannot enter the cell or be broken down at all
3. COxygen itself is converted into ATP in the mitochondria
4. DWithout oxygen the Krebs cycle runs faster but makes less ATP