Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

What do bacteria use flagella for?

1. AMaking proteins from amino acids
2. BCopying their DNA
3. CStoring food
4. DMoving from place to place

What is a mutagen?

1. AA cell that divides without control
2. BSomething that can cause changes in DNA
3. CAn enzyme that copies DNA
4. DA protein that repairs damaged DNA

What is a chromosome?

1. AA single gene that codes for one protein
2. BA small organelle in the cytoplasm that makes ATP for the cell
3. CA long DNA molecule, packed with proteins, carrying many genes
4. DA strand of RNA that leaves the nucleus

A cut in the skin heals as new skin cells fill the wound. Which process produces these cells?

1. AFertilisation
2. BBinary fission
3. CMeiosis
4. DMitosis

Identical twins raised in different homes have different body weights. What does this show?

1. AThe twins must have different genotypes for body weight genes
2. BBody weight is controlled by a single gene
3. CThe phenotype depends on environment as well as genotype
4. DMutations happened in every cell of one twin

A student's hypothesis is "Salt water slows the growth of bean seedlings." Which is a prediction based on it?

1. ASalt water is made of sodium chloride and water
2. BSeedlings given salt water will grow less than those given plain water
3. CSeedlings given plain water will die within a week
4. DBean seedlings need sunlight and water to grow well

Sucrose is broken down into glucose and fructose during digestion. What type of reaction is this?

1. ADehydration synthesis, which releases a water molecule
2. BHydrolysis, which uses a water molecule
3. CHydrolysis, which releases a water molecule
4. DDehydration synthesis, which uses a water molecule

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. A1000
2. B600
3. C1800
4. D400