Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

Which group of biomolecules forms the basic bilayer of the cell membrane and also stores long-term energy?

1. ACarbohydrates
2. BNucleic acids
3. CLipids
4. DProteins

Kuri iš šių medžiagų yra lipidas?

1. ATriacilglicerolis (riebalai)
2. BHemoglobinas
3. CDNR
4. DGlikogenas, gliukozės atsargų forma

Who first worked out the basic rules of inheritance by breeding pea plants?

1. AGregor Mendel
2. BRobert Hooke
3. CLouis Pasteur
4. DCharles Darwin

Kas lemia baltymo formą ir funkciją?

1. ARiebalų rūgščių tvarka membranoje
2. BJo aminorūgščių seka
3. CJo turimų fosfatų grupių skaičius
4. DGliukozės kiekis ląstelėje

Why is DNA replication called semiconservative?

1. AThe old DNA molecule is kept whole, and a completely new one is made
2. BOnly half of the DNA is copied each time
3. CEach new DNA molecule has one old strand and one new strand
4. DEach new strand is a random mix of old and new pieces

How does cytokinesis differ between animal cells and plant cells?

1. AOnly animal cells carry out cytokinesis
2. BAnimal cells build a cell plate; plant cells pinch in with a furrow
3. COnly plant cells carry out cytokinesis
4. DAnimal cells pinch in with a furrow; plant cells build a cell plate

How does the CRISPR-Cas9 gene-editing system find the right place to cut DNA?

1. AThe Cas9 protein cuts DNA at random sites
2. BIt reads the amino acid sequence of the protein
3. CA guide RNA pairs with the matching DNA sequence
4. DIt binds only to the start codon of every gene

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

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