ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

เหตุใดไวรัสจึงสืบพันธุ์ด้วยตัวเองไม่ได้

1. Aสืบพันธุ์ได้เฉพาะในแสงแดด
2. Bไม่มีสารพันธุกรรมใด ๆ เลย ทั้งดีเอ็นเอและอาร์เอ็นเอ
3. Cแบ่งตัวด้วยไมโอซิสเท่านั้น
4. Dต้องอาศัยกลไกของเซลล์เจ้าบ้านในการสร้างสำเนา

In which form do animals store glucose in the liver and muscles?

1. ACellulose
2. BGlycogen
3. CChitin
4. DStarch

What is a Punnett square used for?

1. AShowing the order of genes on a chromosome
2. BMeasuring the size of a cell
3. CPredicting the possible genotypes of offspring
4. DCounting the chromosomes in a cell

What is a chromosomal translocation?

1. AOne DNA base is replaced by another base
2. BA piece of a chromosome is copied twice and stays in the same place
3. CA piece of a chromosome is flipped around in place
4. DA piece of one chromosome attaches to a non-matching chromosome

Why can small nonpolar molecules cross the cell membrane easily while ions cannot?

1. AIons are larger than most membrane proteins
2. BThe bilayer's core is made of hydrophobic tails
3. CThe membrane carries a strong positive charge
4. DThe membrane is made mostly of long carbohydrate chains

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AO only
2. BO or AB
3. CA or B
4. DA, B, AB or O

During the Industrial Revolution, soot darkened tree trunks in parts of England, and dark peppered moths became more common than pale ones. What best explains this?

1. AThe moths chose to become dark to hide
2. BBirds found and ate fewer dark moths on the dark trunks
3. CThe soot settled on the pale moths and slowly turned them dark
4. DDark moths were produced by the polluted air

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ADenaturation by heat
2. BSubstrate saturation
3. CNoncompetitive inhibition
4. DCompetitive inhibition