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

Что из перечисленного является липидом?

1. AГликоген — запасная форма глюкозы
2. BТриглицерид (жир)
3. CГемоглобин
4. DДНК

In which stage of the cell cycle does a cell spend most of its time?

1. AAnaphase
2. BProphase
3. CMetaphase
4. DInterphase

What is a scientific law?

1. AAn explanation that has been proven wrong
2. BA statement of what always happens under certain conditions
3. CA rule that scientists vote to accept
4. DA guess about the cause of something that has not yet been tested

HIV is a retrovirus. What does its enzyme reverse transcriptase do?

1. AIt makes DNA from the virus's RNA
2. BIt breaks down the host's ribosomes
3. CIt makes RNA from the host's DNA
4. DIt makes proteins from the virus's DNA

Clostridium tetani grows in deep puncture wounds but is killed by oxygen. How is this bacterium described?

1. AA photosynthetic bacterium
2. BAn obligate anaerobe
3. CA facultative anaerobe
4. DAn obligate aerobe

У человека с группой крови AB на эритроцитах есть и антиген A, и антиген B. Какой это тип наследования?

1. AНеполное доминирование
2. BПолное доминирование A над B
3. CНаследование, сцепленное с полом
4. DКодоминирование

Bacteria from hot springs have enzymes that work best at about 80 °C, while most human enzymes work best near 37 °C. What is the best explanation?

1. ATheir enzymes are made of lipids, not proteins
2. BHigh temperature never affects any enzyme
3. CTheir enzymes do not have an active site, so heat cannot affect them
4. DTheir enzymes have structures that stay stable at high temperatures

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

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