Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

What does homozygous mean?

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

What is a model in science?

1. AThe control group of a study
2. BA simplified representation of a real system
3. CAn exact copy that has no limitations
4. DA single measurement from an experiment

What is the resolution of a microscope?

1. AHow large the field of view is
2. BIts ability to show two close points as separate
3. CHow bright the image appears
4. DHow many times larger it makes the image of the specimen

What are introns?

1. ACoding sections joined together to form the mature mRNA
2. BShort pieces of DNA made on the lagging strand
3. CCodons that tell the ribosome to stop translation
4. DNon-coding sections removed from pre-mRNA before translation

Kapan DNA disalin dalam siklus sel?

1. APada fase S interfase
2. BSelama sitokinesis
3. CHanya selama meiosis II
4. DSelama metafase mitosis

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

At 100× total magnification, the field of view of a microscope is 2 mm wide. What is its width at 400×?

1. A2 mm
2. B0,5 mm
3. C0,2 mm
4. D8 mm

A pondweed plant is placed in water, and a lamp is moved closer to it. The plant gives off more bubbles per minute. What is the best conclusion?

1. AThe bubbles are nitrogen, and light breaks down the plant cells
2. BThe bubbles are oxygen, and the lamp heats the water until it boils
3. CThe bubbles are carbon dioxide, and respiration speeds up with more light
4. DThe bubbles are oxygen, and photosynthesis speeds up with more light