Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

Bir deneyde bağımlı değişken nedir?

1. ASabit tutulan herhangi bir etken
2. BEtkiyi görmek için ölçülen etken
3. CAraştırmacının bilerek değiştirdiği etken
4. DSınanan hipotez

What is an antigen?

1. AA protein that carries oxygen
2. BA molecule that the immune system sees as foreign
3. CA drug that kills viruses
4. DA white blood cell that engulfs and digests bacteria

Aşağıdakilerden hangisi bir lipittir?

1. ABir trigliserit (yağ)
2. BGlikozun depo biçimi olan glikojen
3. CDNA
4. DHemoglobin

A deletion removes exactly three bases, forming one whole codon, from the middle of a gene. What is the most likely result?

1. AThe protein becomes three times longer
2. BEvery amino acid after the deletion is changed to a new one
3. CThe protein lacks one amino acid but the rest is unchanged
4. DNo protein can be made at all

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AThe sheep that gave the body cell nucleus
2. BAn equal mix of all three sheep
3. CThe sheep that gave the egg cell
4. DThe sheep that carried the pregnancy

Which statement about Archaea is correct?

1. AThey are multicellular plants
2. BThey are prokaryotes, and many live in extreme environments
3. CThey are a type of virus
4. DThey are eukaryotes that have a nucleus and membrane-bound organelles

Cells lining the small intestine have tiny finger-like folds of membrane called microvilli. What does this tell you about their job?

1. AThey protect the gut from bacteria by producing mucus
2. BThey move food along by beating like cilia
3. CThey absorb substances, so they need a large surface area
4. DThey make digestive enzymes in large amounts

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

1. A32
2. B128
3. C12
4. D64