Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What is the active site of an enzyme?

1. AThe region where the substrate binds
2. BThe gene that codes for the enzyme
3. CThe part of the cell where the enzyme is made
4. DThe product formed by the reaction

What is an organism's genome?

1. AThe traits that can be seen
2. BA single gene on one chromosome
3. CAll of its genetic material
4. DThe proteins made by one cell

Which substances are used up in aerobic cellular respiration?

1. ACarbon dioxide and water
2. BGlucose and carbon dioxide
3. CGlucose and oxygen
4. DOxygen and water

A deletion removes exactly three bases, forming one whole codon, from the middle of a gene. What is the most likely result?

1. ANo protein can be made at all
2. BThe protein lacks one amino acid but the rest is unchanged
3. CEvery amino acid after the deletion is changed to a new one
4. DThe protein becomes three times longer

Gdzie zachodzi translacja?

1. ANa rybosomach
2. BWewnątrz jądra komórkowego
3. CW ścianie komórkowej
4. DW lizosomach

Which statement about Archaea is correct?

1. AThey are prokaryotes, and many live in extreme environments
2. BThey are a type of virus
3. CThey are multicellular plants
4. DThey are eukaryotes that have a nucleus and membrane-bound organelles

Why are mutations in mitochondrial DNA passed on only from mothers to their children?

1. AThe zygote's mitochondria come from the egg
2. BMitochondrial DNA is on the X chromosome
3. COnly women have mitochondria in their cells
4. DSperm cells contain no DNA at all

In uncontrolled diabetes, glucose appears in the urine and the person passes large volumes of urine. What is the best explanation?

1. AGlucose in the kidney filtrate holds water by osmosis
2. BGlucose is broken down into water in the bladder
3. CInsulin makes the kidneys filter more blood
4. DGlucose makes the kidneys absorb more water