ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

ดีเอ็นเอส่วนใหญ่ของเซลล์ยูคาริโอตพบที่ใด

1. Aในนิวเคลียส
2. Bในเยื่อหุ้มเซลล์
3. Cในไลโซโซม
4. Dในผนังเซลล์

What is endocytosis?

1. AMoving water across the membrane by osmosis
2. BSplitting the cytoplasm after the nucleus divides
3. CReleasing material from the cell by fusing vesicles with the membrane
4. DTaking material into the cell by folding the membrane around it

Which codon signals the start of translation in most genes?

1. AAUG
2. BUGA
3. CUAA
4. DUAG

What does the enzyme lipase break down?

1. ADNA into nucleotides
2. BProteins into amino acids and peptides
3. CStarch into sugars
4. DFats into fatty acids and glycerol

Which body system works with the respiratory system to deliver oxygen to body cells?

1. AThe digestive system
2. BThe skeletal system
3. CThe urinary system
4. DThe circulatory system

Why does ice float on liquid water?

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

A green plant is kept in a sealed jar in complete darkness for a day. What happens to the carbon dioxide level in the jar?

1. AIt rises, because the plant respires but cannot photosynthesise
2. BIt falls, because plants take in more CO₂ when they respire in the dark
3. CIt falls, because the plant keeps photosynthesising
4. DIt stays the same, because plants do not respire

A dihybrid cross gives offspring in a ratio of about 9 : 3 : 3 : 1. What does this suggest?

1. AOne parent is AaBb and the other is homozygous aabb
2. BThe two genes are tightly linked on the same chromosome
3. CBoth parents are homozygous dominant for both genes
4. DBoth parents are heterozygous for two genes that assort independently