정답이 있는 간호학 입학 시험 대비 생물학 학습지

What do receptor proteins in the cell membrane do?

1. AThey make ATP for the cell
2. BThey bind specific signal molecules, such as hormones
3. CThey digest bacteria that enter the cell
4. DThey store the cell's genetic code for making proteins

What is the R group of an amino acid?

1. AThe carboxyl group at one end
2. BThe peptide bond between two amino acids
3. CThe amino group that is shared by all amino acids
4. DThe side chain that differs between amino acids

Which element is found in all organic molecules?

1. ASulfur
2. BNitrogen
3. CPhosphorus
4. DCarbon

To insert a human gene into a bacterial plasmid, scientists cut both the gene and the plasmid with the same restriction enzyme. Why?

1. ASo the cut ends match and can join together
2. BSo the gene is turned into RNA
3. CSo both pieces become exactly the same length
4. DSo the plasmid loses all its genes

What is the main role of inflammation after an injury?

1. ATo stop all blood flow to the area so that bleeding ends
2. BTo bring more blood and white blood cells to the area
3. CTo destroy the healthy cells around the wound
4. DTo make antibodies inside the damaged cells

이형 접합인 부모(Aa × Aa)를 교배했습니다. 기대되는 유전자형 비는 얼마인가요?

1. A1 AA : 2 Aa : 1 aa
2. B2 AA : 1 Aa : 1 aa
3. C3 AA : 1 aa
4. D1 AA : 1 aa

A man with an X-linked recessive disorder (XʰY) has children with a woman who has two normal alleles (XᴴXᴴ). What is expected among their children?

1. AAll daughters are affected, and all sons are carriers
2. BAll daughters are carriers, and no sons are affected
3. CHalf of the sons and half of the daughters are affected
4. DAll sons are affected, and no daughters are carriers

Cyanide stops mitochondria from making ATP. Which process in the affected cells would stop first?

1. AOsmosis of water across the membrane
2. BSimple diffusion of oxygen into the cell
3. CPumping of Na⁺ and K⁺ by the sodium-potassium pump
4. DFacilitated diffusion of glucose down its gradient