Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

What is the R group of an amino acid?

1. AThe carboxyl group at one end
2. BThe side chain that differs between amino acids
3. CThe amino group that is shared by all amino acids
4. DThe peptide bond between two amino acids

What does the enzyme DNA ligase do?

1. AIt cuts DNA at specific sites
2. BIt unwinds the DNA double helix
3. CIt joins pieces of DNA together
4. DIt makes RNA from a DNA template

Which of these is qualitative data?

1. AThe urine sample is dark yellow
2. BThe patient weighs 68 kg
3. CThe pulse rate is 72 beats per minute
4. DThe wound is 3 cm long

White blood cells called macrophages engulf and digest bacteria. Which organelle would you expect them to have in large numbers?

1. ALysosomes
2. BCentral vacuoles
3. CSmooth endoplasmic reticulum
4. DChloroplasts

In a eukaryotic cell, where does transcription take place?

1. AOn ribosomes in the cytoplasm
2. BIn the Golgi apparatus
3. CIn the nucleus
4. DIn the lysosomes

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

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

Kasos ląstelės gamina ir išskiria daug virškinimo fermentų. Kurios organelės būtų ypač gerai išsivysčiusios?

1. AŠiurkštusis endoplazminis tinklas ir Goldžio kompleksas
2. BLizosomos ir ląstelės sienelė
3. CLygusis endoplazminis tinklas, chloroplastai ir didelė vakuolė
4. DChloroplastai ir ląstelės sienelė

Paper discs with antibiotics X, Y and Z are placed on a plate covered with bacteria. The clear zones around them are 2 mm, 15 mm and 0 mm wide. What is the best conclusion?

1. AX is most effective, and the bacteria are resistant to Y
2. BY is most effective, and the bacteria are resistant to Z
3. CAll three are equally effective against these bacteria
4. DZ is most effective, because no bacteria grew under the disc