Werkblad Biologie voor toelatingsexamens verpleegkunde met antwoorden

Waarom kan een virus zich niet zelfstandig voortplanten?

1. AHet heeft het apparaat van een gastheercel nodig om kopieën te maken
2. BHet heeft helemaal geen erfelijk materiaal, geen DNA en geen RNA
3. CHet deelt zich alleen door meiose
4. DHet plant zich alleen in zonlicht voort

In biology, what is a clone?

1. AAn offspring of two different parents
2. BA cell with an extra chromosome
3. CAn organism that carries genes from two different species
4. DA genetically identical copy of an organism, cell or gene

What is endocytosis?

1. ATaking material into the cell by folding the membrane around it
2. BSplitting the cytoplasm after the nucleus divides
3. CReleasing material from the cell by fusing vesicles with the membrane
4. DMoving water across the membrane by osmosis

A patient's blood type is B positive. What does this mean?

1. ATheir plasma contains anti-B antibodies
2. BTheir red cells carry the A antigen and no RhD antigen
3. CTheir red cells carry the B antigen and the RhD antigen
4. DTheir red cells carry no antigens at all

HIV is a retrovirus. What does its enzyme reverse transcriptase do?

1. AIt breaks down the host's ribosomes
2. BIt makes RNA from the host's DNA
3. CIt makes DNA from the virus's RNA
4. DIt makes proteins from the virus's DNA

Why do plants wilt when the soil around their roots becomes very salty?

1. ASalt makes the root cells swell and burst
2. BWater leaves the root cells by osmosis
3. CThe roots take in too much water
4. DSalt blocks sunlight from reaching the leaves

Two parents are both AaBbCc, and the three genes assort independently. What is the probability that a child is aabbcc?

1. A1/64
2. B1/16
3. C3/64
4. D1/8

A plant that is AaBb is crossed with an AaBB plant. A and B are dominant, and the genes assort independently. What fraction of the offspring show both dominant traits?

1. A1/2
2. B1/4
3. C3/4
4. D9/16