Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What are cilia?

1. ASmall round sacs that hold digestive enzymes
2. BFolds of the inner mitochondrial membrane that make ATP
3. COpenings in the nuclear envelope
4. DShort hair-like projections that beat in waves

Osmoza to dyfuzja jakiej substancji przez błonę półprzepuszczalną?

1. AJonów sodu
2. BGlukozy
3. CBiałek
4. DWody

What are the three parts of a nucleotide?

1. AA phosphate, a sugar and a nitrogen base
2. BAn amino group, a sugar and a fatty acid
3. CA glycerol, a phosphate and a fatty acid
4. DA carboxyl group, a base and a lipid

What causes cohesion between water molecules?

1. AIonic bonds between oxygen atoms
2. BHydrogen bonds between neighbouring molecules
3. CMagnetic forces between hydrogen atoms
4. DCovalent bonds between neighbouring molecules

W której fazie mitozy chromosomy ustawiają się w poprzek środka komórki?

1. AW profazie
2. BW metafazie
3. CW telofazie
4. DW anafazie

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

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

Which evidence supports the theory that mitochondria came from bacteria that lived inside an ancient cell?

1. AThey have a cell wall made of peptidoglycan
2. BThey make the proteins used by the whole cell, including the nucleus
3. CThey have their own circular DNA, ribosomes and a double membrane
4. DThey are found in all prokaryotic cells

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

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