Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais
Nemokamas spausdinamas užduočių lapas tema Biologija slaugos stojamiesiems egzaminams: 8 uždavinių nuo lengvų iki egzamino lygio, su atsakymais. Atsispausdinkite arba išsaugokite kaip PDF.
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Vardas: ____________________ Data: ____________
1.Lengvas
How does a vaccine protect a person?
AIt trains the immune system with a harmless form of a pathogen
BIt kills all bacteria in the body straight away
CIt blocks the pathogen from entering the nose
DIt replaces the person's white blood cells with stronger ones
2.Lengvas
What does gel electrophoresis separate?
ADNA fragments by size
BBlood into plasma and cells
CChromosomes by their colour
DCells by their shape
3.Lengvas
In biology, what is a clone?
AAn offspring of two different parents
BA genetically identical copy of an organism, cell or gene
CAn organism that carries genes from two different species
DA cell with an extra chromosome
4.Vidutinis
Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?
AOn the rough endoplasmic reticulum
BIn the nucleus
CIn the cytoplasm
DIn the mitochondrial matrix
5.Vidutinis
What is meant by independent assortment in meiosis?
ASister chromatids stay joined until the end of meiosis, so all gametes are identical
BHomologous pairs line up randomly, so gametes get different mixes of chromosomes
CDNA is copied separately in each chromosome
DAll chromosomes from the mother go into the same gamete
6.Vidutinis
Why can an electron microscope show more detail than a light microscope?
AElectron microscopes use living cells only
BElectron microscopes use stronger glass lenses
CElectrons have a much shorter wavelength than light
DElectrons are brighter than light
7.Sunkus
Du sveiki tėvai susilaukia vaiko, sergančio liga. Darant prielaidą, kad tai vieno geno požymis, koks labiausiai tikėtinas paaiškinimas?
APožymis yra recesyvinis ir abu tėvai yra nešiotojai
BPožymis yra dominantinis ir abu tėvai serga
CVaikas paveldėjo požymį tik iš tėvo Y chromosomos
DPožymis yra dominantinis ir vienas iš tėvų yra homozigota
8.Sunkus
Some viruses are surrounded by a lipid envelope taken from the host cell's membrane. Why are these viruses usually inactivated easily by soap and alcohol?
AEnveloped viruses have no proteins at all
BSoap and alcohol dissolve the viral DNA directly
CSoap and alcohol break up the lipid envelope
DThe envelope is made of chitin, which soap digests
Atsakymai
1. A · It trains the immune system with a harmless form of a pathogen
2. A · DNA fragments by size
3. B · A genetically identical copy of an organism, cell or gene
4. D · In the mitochondrial matrix
5. B · Homologous pairs line up randomly, so gametes get different mixes of chromosomes
6. C · Electrons have a much shorter wavelength than light
7. A · Požymis yra recesyvinis ir abu tėvai yra nešiotojai
8. C · Soap and alcohol break up the lipid envelope
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