Werkblad Biologie voor toelatingsexamens verpleegkunde met antwoorden

Welke base komt voor in RNA maar niet in DNA?

1. AGuanine
2. BAdenine
3. CThymine
4. DUracil

What is the main job of the nucleolus?

1. AIt digests worn-out parts of the cell
2. BIt makes ribosomal RNA and builds ribosome parts
3. CIt releases energy from glucose for the nucleus
4. DIt stores water and salts for the nucleus

Who first used the word "cells" after looking at thin slices of cork under a microscope?

1. ALouis Pasteur
2. BCharles Darwin
3. CRobert Hooke
4. DGregor Mendel

Identical twins raised in different homes have different body weights. What does this show?

1. ABody weight is controlled by a single gene
2. BThe phenotype depends on environment as well as genotype
3. CMutations happened in every cell of one twin
4. DThe twins must have different genotypes for body weight genes

What happens when a ribosome reaches a stop codon on the mRNA?

1. ATranslation ends and the protein is released
2. BThe ribosome goes back to the start codon
3. CA special amino acid is added to end the chain
4. DThe mRNA is copied back into DNA

In a food chain, producers hold 10 000 units of energy. Roughly how much is passed on to the primary consumers?

1. AAbout 10 units
2. BAbout 1000 units
3. CAbout 5000 units
4. DAbout 10 000 units

In a trial, 20% of patients improve on a new drug and 18% improve on a placebo. What is the best conclusion?

1. AThe drug is ten times better than the placebo
2. BThe drug adds little benefit beyond the placebo
3. CThe drug works well, because 20% of patients improved
4. DThe placebo was harmful to the patients

A bag made of membrane that lets only water through contains a 10% sugar solution. It is placed in a beaker of 5% sugar solution. What happens?

1. AWater moves into the bag, and the bag gains mass
2. BWater moves out of the bag, and the bag loses mass
3. CSugar moves out of the bag until both are 7,5%
4. DNothing changes, because sugar cannot cross