Биология для вступительных экзаменов на сестринские программы: лист заданий с ответами

Which organelle makes lipids and helps break down drugs and toxins in liver cells?

1. ARough endoplasmic reticulum
2. BCentriole
3. CNucleolus
4. DSmooth endoplasmic reticulum

What is cytokinesis?

1. AThe copying of DNA before division
2. BThe pairing of homologous chromosomes
3. CThe division of the cytoplasm into two cells
4. DThe condensing of chromosomes in prophase

Which sugar is found in DNA?

1. ARibose
2. BDeoxyribose
3. CFructose
4. DGlucose

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. BThe phenotype depends on environment as well as genotype
3. CBody weight is controlled by a single gene
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. ASeedlings given salt water will grow less than those given plain water
2. BSeedlings given plain water will die within a week
3. CBean seedlings need sunlight and water to grow well
4. DSalt water is made of sodium chloride and water

What does the enzyme lipase break down?

1. AProteins into amino acids and peptides
2. BDNA into nucleotides
3. CStarch into sugars
4. DFats into fatty acids and glycerol

A breastfed baby receives antibodies from its mother's milk. Why does this protection last only a short time?

1. AThe antibodies turn into memory cells after a few weeks
2. BThe baby's stomach makes the antibodies more active
3. CThe baby did not make these antibodies and forms no memory cells
4. DThe antibodies from breast milk attack the baby's own red blood cells

Why can standard DNA profiling not tell identical twins apart?

1. AIdentical twins come from one zygote and have the same DNA
2. BOnly one twin inherits the father's DNA
3. CTwins always share the same fingerprints on their hands
4. DIdentical twins have no non-coding DNA