Year 13 IB SL Bio

A vibrant and educational illustration depicting various biological concepts including hormones, human anatomy, and the digestive system, designed for a Year 13 biology quiz.

Year 13 IB SL Biology Quiz

Test your knowledge of Year 13 IB SL Biology with this comprehensive quiz. Featuring 21 multiple-choice questions, you'll dive into topics such as hormone function, cellular biology, digestive processes, and human physiology.

Engaging questions that cover key biological concepts
Perfect for revision or a quick self-assessment
Track your understanding of essential biology topics

21 Questions5 MinutesCreated by ExploringCell427

What is the role of the hormone leptin?

A. To regulate the metabolic rate

B. To inhibit appetite

C. To control circadian rhythms

D. To increase blood sugar concentration

Which feature of capillaries distinguishes them from arteries and veins?

A. Narrow diameter

B. Valves to prevent backflow

C. Thick muscular walls

D. Elastic tissue

In premature babies born earlier than the 30th week of pregnancy, type II pneumocytes are usually not fully developed, so they do not carry out their function normally. What is a possible consequence of this?

A. The number of alveoli reduces.

B. The size of the alveoli increases.

C. Capillary networks do not develop fully and oxygen is not absorbed.

D. Surface tension between alveoli does not decrease and the alveoli stick together.

Which labels indicate where fertilization occurs and where luteinizing hormone (LH) acts?

A. 1 and 3

B. 2 and 5

C. 3 and 4

D. 1 and 5

What is produced by type II pneumocytes?

A. Epinephrine

B. Elastase

C. Pulmonary surfactant

D. Alpha 1-antitrypsin

The hormones insulin, glucagon, thyroxin and leptin can all affect energy storage in the body. Which hormone increases the rate of energy release and use?

A. Insulin

B. Glucagon

C. Thyroxin

D. Leptin

The micrograph is of a longitudinal section through the small intestine. Which letter represents the circular muscle layer?

What are these structures?

A. Fatty acids in the small intestine

B. Bacteria in the large intestine

C. Villi in the small intestine

D. Feces egested from the large intestine

Why are antibiotics effective in curing diseases against some pathogens but not others? I. Antibiotics interrupt processes found in some but not all pathogen cells. II. Some pathogens have no metabolic processes to interrupt. III. Some pathogens have developed genetic resistance to specific antibiotics.

A. I only

B. II only

C. III only

D. I, II and III

What helps to regulate the levels of glucose in blood?

A. Insulin and glucagon

B. Kidneys and liver

C. Glycogen and insulin

D. Digestion and respiration

Which pituitary hormones regulate the human menstrual cycle?

A. FSH and LH

B. Progesterone and estrogen

C. HCG and estrogen

D. FSH and oxytocin

How are fats and cholesterol transported in the blood?

A. As groups of molecules inside vesicles

B. As individual molecules coated in phospholipids

C. As individual molecules bound to a protein

D. As groups of molecules in lipoprotein complexes

In which blood vessel connected to the heart does blood have the lowest carbon dioxide concentration?

A. Pulmonary vein

B. Vena cava

C. Pulmonary artery

D. Coronary vein

Where does the digestion of polypeptides start in humans?

A. Mouth

B. Esophagus

C. Stomach

D. Small intestine

The graph shows a correlation between the number of new cases of stomach cancer and vegetable consumption for women in Poland. What can be stated from the graph?

A. Vegetable consumption causes stomach cancer

B. 68 % of the data are gathered around the trend line

C. Causality cannot be stated from the graph alone

D. Only that the correlation is positive

What is a role of the coronary arteries?

A. To supply information about blood temperature to the hypothalamus

B. To supply the heart muscle with oxygen and nutrients

C. To carry blood away from the heart

D. To monitor blood pH

What characterizes type I diabetes?

A. It can be controlled by diet alone.

B. Risk factors such as obesity increase its frequency.

C. The alpha cells of the pancreas are destroyed, usually during adulthood.

D. The beta cells of the pancreas are destroyed, usually during childhood.

Year 13 IB SL Bio

Year 13 IB SL Biology Quiz

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