Question

lo 3.3. what is exchanged between capillaries and the bodys cells?
nutrients, oxygen, and waste products
carbon dioxide and nitrogen
carbon dioxide and oxygen
lipids and proteins
water and electrolytes

Explanation:

Capillaries are the smallest blood vessels. They have thin walls that allow for the exchange of substances between the blood in the capillaries and the body's cells. Nutrients (such as glucose, amino acids), oxygen (which is needed for cellular respiration), and waste products (like carbon dioxide, urea) are exchanged.

• Carbon dioxide is a waste product (exchanged out of cells), but nitrogen is not a major substance exchanged in this context.
• While oxygen is exchanged (into cells) and carbon dioxide (out of cells), this option misses nutrients and waste products other than carbon dioxide.
• Lipids and proteins are not the main substances exchanged in the simple capillary - cell exchange described here.
• Water and electrolytes are part of the fluid exchange, but the broader exchange includes nutrients, oxygen, and waste products.

Answer:

Nutrients, oxygen, and waste products