Робочий аркуш «Біологія для вступних іспитів на медсестринство» з відповідями

Згідно з клітинною теорією, звідки беруться нові клітини?

1. AІз клітин, що вже існують
2. BІз неживої матерії в організмі
3. CІз вірусів, що потрапляють в організм
4. DІз мінеральних речовин їжі

What is a chromosome?

1. AA small organelle in the cytoplasm that makes ATP for the cell
2. BA single gene that codes for one protein
3. CA long DNA molecule, packed with proteins, carrying many genes
4. DA strand of RNA that leaves the nucleus

What is peer review?

1. AAsking patients for their opinion of a treatment
2. BRepeating your own experiment many times
3. CReading a textbook to learn a topic
4. DExperts checking a study before it is published

Why do chromosomes condense into short, thick shapes before mitosis?

1. ASo that they can leave through the nuclear pores
2. BSo that they can be copied more quickly
3. CSo that genes can be transcribed more easily
4. DSo they can be moved apart without tangling or breaking

In disease spread, what is a vector?

1. AAn organism that carries a pathogen between hosts
2. BA medicine that destroys a pathogen in the body
3. CA blood test used to detect antibodies
4. DThe first person to catch a disease

What does the enzyme lipase break down?

1. AProteins into amino acids and peptides
2. BStarch into sugars
3. CDNA into nucleotides
4. DFats into fatty acids and glycerol

A mutation changes one amino acid in an enzyme. In which location is the change most likely to stop the enzyme from working?

1. AOn the outer surface, far from the active site
2. BIn a section that is removed after the protein is made
3. CIn the active site
4. DIn the gene's stop codon

After wolves are removed from a park, the deer population rises sharply and young trees are overgrazed. What does this show?

1. AWolves compete with trees for sunlight
2. BRemoving a predator has no effect on plants
3. CDeer are producers in the food web
4. DOrganisms in a food web depend on each other