Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What are cilia?

1. AShort hair-like projections that beat in waves
2. BOpenings in the nuclear envelope
3. CFolds of the inner mitochondrial membrane that make ATP
4. DSmall round sacs that hold digestive enzymes

What is homeostasis?

1. AKeeping a stable internal environment
2. BBreaking down food for energy
3. CChanging a species over many generations
4. DMaking identical copies of a cell

What is the main job of the large central vacuole in a plant cell?

1. AIt stores water and keeps the cell firm
2. BIt captures light energy for photosynthesis
3. CIt copies DNA before the cell divides
4. DIt assembles proteins from amino acids

Apa hasil respirasi seluler aerob?

1. AAsam laktat dan oksigen
2. BPati dan air
3. CKarbon dioksida, air, dan ATP
4. DGlukosa dan oksigen

Mengapa bakteri Gram-positif berwarna ungu pada pewarnaan Gram?

1. ABakteri itu mengandung klorofil
2. BBakteri itu tidak memiliki dinding sel sama sekali
3. CDindingnya yang tipis ditutupi membran luar yang kaya lipid
4. DDinding peptidoglikannya yang tebal menahan zat warna ungu

Why does ice float on liquid water?

1. AIce molecules are lighter than liquid water molecules
2. BIce contains more air than liquid water
3. CHydrogen bonds hold ice in an open, less dense structure
4. DIce is denser than liquid water

Some viruses are surrounded by a lipid envelope taken from the host cell's membrane. Why are these viruses usually inactivated easily by soap and alcohol?

1. AThe envelope is made of chitin, which soap digests
2. BSoap and alcohol dissolve the viral DNA directly
3. CSoap and alcohol break up the lipid envelope
4. DEnveloped viruses have no proteins at all

Sebuah mikroskop cahaya memiliki lensa okuler 10× dan lensa objektif 40×. Berapa perbesaran totalnya?

1. A50×
2. B4000×
3. C40×
4. D400×