ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

Which elements make up carbohydrates?

1. ACarbon, nitrogen and sulfur
2. BCarbon, hydrogen and nitrogen
3. CCarbon, hydrogen and oxygen
4. DHydrogen, oxygen and phosphorus

Which group of biomolecules forms the basic bilayer of the cell membrane and also stores long-term energy?

1. AProteins
2. BNucleic acids
3. CLipids
4. DCarbohydrates

What is the main role of carbohydrates in the human diet?

1. ATo carry the body's genetic information
2. BTo build muscle tissue
3. CTo form antibodies
4. DTo provide a quick source of energy

Many vitamins act as coenzymes. What does this mean?

1. AThey are built into the cell membrane
2. BThey help enzymes carry out their reactions
3. CThey are digested to release large amounts of energy
4. DThey replace enzymes that have been denatured

How do embryonic stem cells differ from most adult stem cells?

1. AThey can no longer divide, while adult stem cells divide quickly
2. BThey are found only in plants, while adult stem cells are found in animals
3. CThey can become almost any cell type, while adult stem cells are more limited
4. DThey are haploid, while adult stem cells are diploid

When most people in a community are vaccinated, people who cannot be vaccinated are also protected. Why?

1. AThe vaccine spreads from person to person
2. BVaccinated people make antibodies for others
3. CThe pathogen has too few hosts to spread easily
4. DThe pathogen mutates into a harmless form

The coding part of an mRNA is 900 bases long, including the start codon and the stop codon. How many amino acids are in the protein?

1. A300
2. B299
3. C900
4. D298

Liver cells take in cholesterol-carrying LDL particles only after the particles bind to specific proteins on the cell surface. Which process is this?

1. AReceptor-mediated endocytosis
2. BSimple diffusion
3. CPinocytosis of extracellular fluid
4. DExocytosis