Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

How does a vaccine protect a person?

1. AIt replaces the person's white blood cells with stronger ones
2. BIt kills all bacteria in the body straight away
3. CIt blocks the pathogen from entering the nose
4. DIt trains the immune system with a harmless form of a pathogen

Which definition of a species is most often used for animals?

1. AAll the animals that eat the same food
2. BAny organisms that look alike
3. CAll of the different organisms that live together in one area
4. DA group that can interbreed and have fertile offspring

What does transfer RNA (tRNA) do?

1. AIt copies DNA in the nucleus
2. BIt joins two DNA strands together
3. CIt brings amino acids to the ribosome
4. DIt carries the code out of the nucleus

Bir deneyin sonuçları hipotezin öngörüleriyle uyuşuyor. En iyi sonuç hangisidir?

1. AHipotez desteklenmiştir, ancak kanıtlanmamıştır
2. BHipotez tüm durumlar için doğru olarak kanıtlanmıştır
3. CHipotez artık bir doğa yasasıdır
4. DBaşka hiçbir deneye gerek yoktur

Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?

1. AIn the nucleus
2. BIn the mitochondrial matrix
3. COn the rough endoplasmic reticulum
4. DIn the cytoplasm

A-T-G-C-C-A DNA zincirinin tamamlayıcısı hangi dizidir?

1. AG-C-A-T-T-G
2. BU-A-C-G-G-U
3. CA-T-G-C-C-A
4. DT-A-C-G-G-T

Some viruses are surrounded by a lipid envelope taken from the host cell's membrane. Why are these viruses usually inactivated easily by soap and alcohol?

1. AEnveloped viruses have no proteins at all
2. BSoap and alcohol break up the lipid envelope
3. CSoap and alcohol dissolve the viral DNA directly
4. DThe envelope is made of chitin, which soap digests

Why are mutations in mitochondrial DNA passed on only from mothers to their children?

1. AOnly women have mitochondria in their cells
2. BSperm cells contain no DNA at all
3. CMitochondrial DNA is on the X chromosome
4. DThe zygote's mitochondria come from the egg