ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

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

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

What is a sister chromatid?

1. AA small ring of DNA found in bacteria
2. BOne of two identical copies of a chromosome joined at the centromere
3. CA chromosome that is inherited from the mother only, never the father
4. DOne of the two sex chromosomes

Which of these hormones is a steroid?

1. ATestosterone
2. BGrowth hormone
3. CGlucagon
4. DInsulin

How can bacteria pass antibiotic-resistance genes directly to other bacteria?

1. ABy mitosis, sharing copies of their chromosomes with neighbours
2. BBy meiosis, forming gametes with new alleles
3. CBy osmosis, moving genes in water
4. DBy conjugation, transferring plasmids through a pilus

The human arm, bat wing and whale flipper contain the same set of bones. What does this suggest?

1. AThey are the result of acquired traits
2. BThey share a common ancestor
3. CThey have the same function
4. DThey evolved completely separately

A tall pea plant could be TT or Tt. Which cross will best reveal its genotype?

1. ALet it grow for a longer time
2. BCross it with another tall plant
3. CCross it with a TT plant
4. DCross it with a short (tt) plant

Cells lining the small intestine have tiny finger-like folds of membrane called microvilli. What does this tell you about their job?

1. AThey make digestive enzymes in large amounts
2. BThey protect the gut from bacteria by producing mucus
3. CThey absorb substances, so they need a large surface area
4. DThey move food along by beating like cilia

A study finds that coffee drinkers have more lung cancer. Later it is found that coffee drinkers in the study also smoked more. What is smoking in this study?

1. AA confounding variable
2. BA placebo
3. CThe control group
4. DThe dependent variable