Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What do receptor proteins in the cell membrane do?

1. AThey make ATP for the cell
2. BThey store the cell's genetic code for making proteins
3. CThey bind specific signal molecules, such as hormones
4. DThey digest bacteria that enter the cell

What is the single most important way to prevent the spread of infection in hospitals?

1. AWearing a hair net
2. BOpening the windows
3. CGiving every patient antibiotics
4. DHand hygiene

What are restriction enzymes?

1. AEnzymes that copy RNA into DNA
2. BEnzymes that digest fats in the intestine
3. CEnzymes that cut DNA at specific base sequences
4. DEnzymes that join amino acids into proteins

How are photosynthesis and aerobic respiration related?

1. ABoth happen only in animal cells, never in plant cells
2. BBoth take place only in chloroplasts
3. CThe products of one are the reactants of the other
4. DBoth release oxygen into the air

What does the enzyme lipase break down?

1. AFats into fatty acids and glycerol
2. BStarch into sugars
3. CDNA into nucleotides
4. DProteins into amino acids and peptides

What is a bacterial endospore?

1. AA tough, dormant form that survives heat, drying and many disinfectants
2. BA small ring of DNA that carries antibiotic resistance genes
3. CA reproductive cell that bacteria use to make new colonies quickly
4. DA hair-like structure used to swim towards food

Roślinę AaBb skrzyżowano z rośliną aabb. Geny segregują niezależnie. Jaki stosunek fenotypów oczekuje się u potomstwa?

1. A3 : 1
2. B9 : 3 : 3 : 1
3. C1 : 2 : 1
4. D1 : 1 : 1 : 1

Cyanide stops mitochondria from making ATP. Which process in the affected cells would stop first?

1. APumping of Na⁺ and K⁺ by the sodium-potassium pump
2. BOsmosis of water across the membrane
3. CSimple diffusion of oxygen into the cell
4. DFacilitated diffusion of glucose down its gradient