ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is the job of the capsule found around some bacteria?

1. AIt helps the bacterium make energy by photosynthesis
2. BIt holds the bacterium's main chromosome
3. CIt protects the cell, for example from white blood cells
4. DIt is used to swim through liquids

Which sex chromosomes does a typical human male have?

1. AX only
2. BXX
3. CXY
4. DYY

What does homozygous mean?

1. AHaving two identical alleles for a gene
2. BHaving two different alleles for a gene
3. CHaving an extra chromosome
4. DHaving only one copy of a gene

What are introns?

1. ACodons that tell the ribosome to stop translation
2. BNon-coding sections removed from pre-mRNA before translation
3. CCoding sections joined together to form the mature mRNA
4. DShort pieces of DNA made on the lagging strand

Where does the oxygen released by photosynthesis come from?

1. AFrom glucose that is broken down
2. BFrom chlorophyll that is used up
3. CFrom water molecules that are split
4. DFrom carbon dioxide molecules that are split

A solution of pH 4 is compared with a solution of pH 6. How many times more hydrogen ions does the pH 4 solution have?

1. A100 times
2. B10 times
3. C2 times
4. D20 times

A student puts a fertilised plant in a sunny window and an unfertilised plant in a dark cupboard. The fertilised plant grows more. What is the main flaw?

1. ATwo variables were changed, so the cause is unclear
2. BThe dependent variable was not measured
3. CThe student used too much fertiliser on the plant in the window
4. DThere was no hypothesis to test

Home pregnancy tests use antibodies that bind the hormone hCG. Why do they react with hCG and not with other proteins in urine?

1. AAntibodies bind every protein but change colour only with hCG
2. BUrine contains no other proteins at all
3. CThe hormone hCG is a type of antibody itself
4. DEach antibody binds a specific antigen shape