Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

Które organellum wytwarza większość ATP w komórce eukariotycznej?

1. AMitochondrium
2. BLizosom
3. CAparat Golgiego
4. DRybosom

What is an ecosystem?

1. AA single organism together with all of its organs and tissues
2. BThe weather in a particular region
3. CThe living things in an area and their non-living surroundings
4. DAll the members of one species in an area

What are stomata?

1. ATubes that carry water up the stem
2. BGreen structures in the leaf that store starch
3. CSmall pores in leaves that allow gas exchange
4. DHairs on roots that absorb minerals

What is the role of ribosomal RNA (rRNA)?

1. AIt carries the code from DNA to the ribosome
2. BIt forms part of the ribosome and helps join amino acids
3. CIt brings single amino acids to the ribosome
4. DIt stores genetic information in the nucleus

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

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

Many vitamins act as coenzymes. What does this mean?

1. AThey are built into the cell membrane
2. BThey are digested to release large amounts of energy
3. CThey replace enzymes that have been denatured
4. DThey help enzymes carry out their reactions

Fertiliser washes from farmland into a lake. Algae grow rapidly, then die, and later many fish die. What is the main cause of the fish deaths?

1. ABacteria decomposing the dead algae use up the oxygen
2. BThe fertiliser is directly poisonous to fish
3. CThe fish eat too many algae and become ill
4. DThe algae release carbon dioxide that poisons fish

Parts of a protein chain coil into alpha helices and fold into beta sheets, held by hydrogen bonds. Which level of protein structure is this?

1. ATertiary structure
2. BPrimary structure
3. CQuaternary structure
4. DSecondary structure