Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What is the main material in the cell wall of bacteria?

1. APeptidoglycan
2. BKeratin
3. CCellulose
4. DChitin

What is an inference?

1. AA conclusion reached from observations and prior knowledge
2. BA list of the materials used in an experiment
3. CA measurement taken with a calibrated instrument in a laboratory
4. DA variable that the scientist changes on purpose

What is a karyotype?

1. AA map of the organelles inside a cell
2. BA diagram of a family's inheritance pattern
3. CA picture of a cell's chromosomes arranged in pairs by size
4. DA list of all the proteins that a cell makes during its life

Seorang siswa menguji bagaimana jumlah cahaya memengaruhi pertumbuhan tanaman kacang. Manakah yang harus menjadi variabel kontrol?

1. AKesimpulan percobaan
2. BJumlah air yang diterima setiap tanaman
3. CJumlah cahaya yang diterima setiap tanaman
4. DTinggi tanaman pada akhir percobaan

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt copies RNA as well as DNA
2. BIt works only in the dark, like the bacteria it comes from
3. CIt survives the high temperatures used to separate the strands
4. DIt makes the DNA strands stick together

An organism is multicellular, makes its own food by photosynthesis and has cell walls of cellulose. Which kingdom does it belong to?

1. APlants
2. BAnimals
3. CFungi
4. DBacteria

Griffith injected mice with heat-killed harmful bacteria mixed with live harmless bacteria. The mice died, and live harmful bacteria were found in them. What did this show?

1. AThe mice were killed by the dead bacteria alone
2. BHeat makes harmless bacteria become harmful when they are injected
3. CBacteria can be killed by the immune system of mice
4. DA substance from the dead bacteria changed the harmless ones

Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?

1. A23², about 529
2. B2 × 23, which is 46
3. C2²³, about 8 million
4. D46, one for each chromosome