Робочий аркуш «Біологія для вступних іспитів на медсестринство» з відповідями

What is natural selection?

1. AHumans breeding plants for useful traits
2. BAnimals choosing which mates they like best, so traits change at random
3. COrganisms changing their genes when they need to
4. DIndividuals with helpful traits survive and reproduce more

Which codon signals the start of translation in most genes?

1. AUAA
2. BUGA
3. CUAG
4. DAUG

Що з наведеного є ліпідом?

1. AГемоглобін
2. BГлікоген, запасна форма глюкози
3. CДНК
4. DТригліцерид (жир)

Which polymer is correctly matched with its monomer?

1. AStarch and glucose
2. BProtein and nucleotide
3. CGlycogen and fatty acid
4. DDNA and amino acid

What happens during telophase of mitosis?

1. AThe chromosomes line up across the middle of the cell
2. BThe DNA is copied for the next division
3. CThe sister chromatids are pulled apart
4. DA nuclear envelope forms around each set of chromosomes

What are introns?

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

A plant cell is placed in a strong salt solution. Its membrane and cytoplasm pull away from the cell wall. What is this called?

1. APlasmolysis
2. BLysis
3. CCrenation
4. DTurgor

An inhibitor binds to an enzyme away from the active site and changes the enzyme's shape. Adding more substrate does not restore the rate. What type of inhibition is this?

1. ACompetitive inhibition
2. BDenaturation by heat
3. CNoncompetitive inhibition
4. DSubstrate saturation