Биология для вступительных экзаменов на сестринские программы: лист заданий с ответами

What is phagocytosis?

1. AA cell engulfing large particles such as bacteria
2. BA cell releasing hormones by exocytosis
3. CA cell taking in small droplets of fluid
4. DA cell dividing into two identical daughter cells

What is the main role of carbohydrates in the human diet?

1. ATo build muscle tissue
2. BTo provide a quick source of energy
3. CTo carry the body's genetic information
4. DTo form antibodies

What is the SI base unit of mass?

1. AGram
2. BKilogram
3. CPound
4. DLitre

What is the role of ribosomal RNA (rRNA)?

1. AIt brings single amino acids to the ribosome
2. BIt forms part of the ribosome and helps join amino acids
3. CIt carries the code from DNA to the ribosome
4. DIt stores genetic information in the nucleus

What is a chromosomal translocation?

1. AA piece of a chromosome is copied twice and stays in the same place
2. BA piece of one chromosome attaches to a non-matching chromosome
3. COne DNA base is replaced by another base
4. DA piece of a chromosome is flipped around in place

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe donor marrow contains antibiotics that kill cancer
2. BThe donor stem cells produce new, healthy blood cells
3. CThe transplant replaces the patient's bones
4. DThe donor red cells divide to make more red cells

At 100× total magnification, the field of view of a microscope is 2 mm wide. What is its width at 400×?

1. A0,5 mm
2. B8 mm
3. C0,2 mm
4. D2 mm

Kidney tubule cells move glucose from the filtrate back into the blood, even when there is less glucose in the filtrate than in the cells. What does this show?

1. AGlucose is moved by active transport
2. BGlucose is moved by osmosis
3. CGlucose is moved by simple diffusion
4. DGlucose moves only down its gradient