Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

Jakie substancje powstają w fotosyntezie?

1. AKwas mlekowy i ATP
2. BBiałko i azot
3. CGlukoza i tlen
4. DDwutlenek węgla i woda

What is an organism's genotype?

1. AThe alleles it carries for a trait
2. BThe number of cells in its body
3. CThe traits that can be seen or measured
4. DThe environment in which it lives

Which elements make up carbohydrates?

1. AHydrogen, oxygen and phosphorus
2. BCarbon, hydrogen and nitrogen
3. CCarbon, hydrogen and oxygen
4. DCarbon, nitrogen and sulfur

What happens in the lytic cycle of a virus?

1. AThe viral DNA joins the host DNA and stays inactive for a long time
2. BThe virus makes many copies in the host cell, which then bursts
3. CThe virus divides by binary fission outside the cell
4. DThe host cell makes antibodies against the virus

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

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

A protein is made to be secreted out of the cell. What path does it follow?

1. ANucleus, then lysosome, then Golgi apparatus, then cell membrane
2. BRough ER, then Golgi apparatus, then vesicle, then cell membrane
3. CSmooth ER, then mitochondrion, then vesicle, then cell membrane
4. DGolgi apparatus, then rough ER, then nucleus, then cell membrane

Białko ma długość 150 aminokwasów. Nie licząc kodonu stop, ile zasad mRNA je koduje?

1. A50
2. B450
3. C300
4. D150

Two parents are both carriers of cystic fibrosis, an autosomal recessive disorder. They have three children. What is the probability that none of the three is affected?

1. A3/4
2. B27/64
3. C1/64
4. D9/16