Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

In science, what is an observation?

1. AInformation gathered with the senses or instruments
2. BA rule that explains all known facts
3. CA conclusion drawn before any data are collected
4. DA guess about why something happens

What does it mean that a cell membrane is selectively permeable?

1. AIt lets no substance cross at all
2. BIt lets some substances cross but not others
3. CIt lets every substance cross freely in both directions
4. DIt lets only water molecules cross

Which feature helps a sperm cell carry out its job?

1. AA flagellum for swimming
2. BA cell wall for protection
3. CA large vacuole for storing water
4. DChloroplasts for making food

A patient's heart rate is measured four times: 70, 72, 74 and 80 beats per minute. What is the mean?

1. A80 beats per minute
2. B72 beats per minute
3. C73 beats per minute
4. D74 beats per minute

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

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

Nişasta, glikojen ve selülozun ortak yanı nedir?

1. AAmino asitlerden oluşan proteinlerdir
2. BEnerji depolayan lipitlerdir
3. CKalıtsal bilgiyi depolayan nükleik asitlerdir
4. DGlikoz birimlerinden oluşan polisakkaritlerdir

Hücre düzeyinde kanserin temel nedeni nedir?

1. AHücre döngüsü genlerindeki mutasyonlar kontrolsüz bölünmeye yol açar
2. BHücreler tamamen bölünmeyi bırakır ve ölür
3. CHücreler tüm mitokondrilerini kaybeder
4. DBakteriler çekirdeğe girer ve hücrenin kendi DNA'sını kendi DNA'larıyla değiştirir

Why are there usually far fewer top predators than herbivores in an ecosystem?

1. AHerbivores eat the young of top predators
2. BTop predators reproduce faster than herbivores, so they die sooner
3. CTop predators need less energy than herbivores
4. DEnergy is lost at each step, leaving little for the top level