Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

Which substances are used up in aerobic cellular respiration?

1. ACarbon dioxide and water
2. BGlucose and carbon dioxide
3. CGlucose and oxygen
4. DOxygen and water

Hücre zarının temel yapısı nedir?

1. Aİçine proteinler gömülü çift katmanlı fosfolipit
2. BKalın bir peptidoglikan duvarı
3. CSelüloz lifleri ve lignin içeren sert bir katman
4. DTek katmanlı nişasta molekülleri tabakası

What does phloem carry in a plant?

1. ASugars made in the leaves
2. BChlorophyll to the stem
3. CWater from the roots only
4. DCarbon dioxide from the air

What happens in the Calvin cycle of photosynthesis?

1. AGlucose is broken down to release energy
2. BWater is split to release oxygen
3. CLight is absorbed by chlorophyll
4. DCO₂ is built into sugar using ATP and NADPH

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

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

Which body system works with the respiratory system to deliver oxygen to body cells?

1. AThe skeletal system
2. BThe digestive system
3. CThe circulatory system
4. DThe urinary system

Some chemotherapy drugs stop spindle fibres from forming. Why do they often cause hair loss and damage to the gut lining?

1. AThese cells divide by meiosis instead of mitosis
2. BThese cells have no mitochondria
3. CThese tissues also contain rapidly dividing cells
4. DThese tissues are made only of haploid cells

The antibiotic tetracycline binds to bacterial ribosomes. Which process does it block, and why are human cells much less affected?

1. ADNA replication, because bacteria have no DNA polymerase
2. BTranscription, because human cells have no RNA polymerase of their own
3. CTranslation, because bacterial ribosomes differ from human ribosomes
4. DTranslation, because human cells have no ribosomes