Given a scientific passage and an answer, generate a question for the given answer.

Passage: Starch is a large, complex carbohydrate made of thousands of glucose units (monomers) joined together. Starches are found in foods such as vegetables and grains. Starches are broken down by the body into sugars that provide energy. Breads and pasta are good sources of complex carbohydrates. Answer: glucose units (monomers)
Starch is a large, complex carbohydrate made of thousands of _____ joined together?

Passage: The way a mineral cleaves or fractures depends on the crystal structure of the mineral. Answer: the crystal structure
The way a mineral cleaves or fractures depends on what part of the mineral?

Passage: The related field of biochemistry overlaps to some extent with organic chemistry. Biochemistry is the study of the chemistry of living systems. Many biochemical compounds are considered to be organic chemicals. Both of the molecules shown above are biochemical materials in terms of their use in the body, but organic chemicals in terms of their structure and chemical reactivity. Answer: living systems
Biochemistry is the study of the chemistry of?