Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

Jaka jest najmniejsza jednostka uznawana za żywą?

1. AAtom
2. BTkanka
3. CKomórka
4. DCząsteczka

What is true of a recessive allele?

1. AIts trait shows whenever one copy is present
2. BIt is always harmful to the organism
3. CIt is found only on the X chromosome
4. DIts trait shows only when two copies are present

Which substances are used up in aerobic cellular respiration?

1. AGlucose and carbon dioxide
2. BOxygen and water
3. CCarbon dioxide and water
4. DGlucose and oxygen

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

When plotting the results of an experiment, which variable usually goes on the y-axis?

1. AThe time the experiment started
2. BThe dependent variable
3. CThe controlled variable
4. DThe independent variable

Lactose (milk sugar) is a disaccharide. Which two monosaccharides is it made of?

1. AFructose and galactose
2. BGlucose and glucose
3. CGlucose and galactose
4. DGlucose and fructose

Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?

1. A23², about 529
2. B2²³, about 8 million
3. C46, one for each chromosome
4. D2 × 23, which is 46

A karyotype shows 45 chromosomes, with a single X chromosome and no Y. Which condition is this?

1. ATurner syndrome
2. BDown syndrome
3. CA typical male karyotype
4. DKlinefelter syndrome