Which of the following are structures that rely on capillaries for exchange or movement of small molecules?
Answers in order from 1 to 10
B
B
A
B
C
D
A
B
C
B
Please anyone!!!
What are your choices? What is your answer?
1 teeth, aorta, ureter
2 cartilage, epidermis, larynx
3 nephron, villi, alveoli
4 leukocytes, atrium, bronchi
answer #2
Ms.Sue?
i don't know this either HELP
the answer is c
@Handy is correct. Just got a 100% on the Connections Academy quick check for unit 13 p1 lesson 7! :)
To determine which structures rely on capillaries for the exchange or movement of small molecules, we need to understand what capillaries are. Capillaries are tiny, thin-walled blood vessels that connect arterioles (small arteries) and venules (small veins). These vessels are responsible for the exchange of oxygen, nutrients, carbon dioxide, and waste products between the blood and tissues.
Now, let's consider the structures mentioned and determine if they rely on capillaries for the exchange or movement of small molecules:
1. Lungs: The lungs rely on capillaries for the exchange of oxygen and carbon dioxide during gas exchange. Small molecules such as oxygen and carbon dioxide diffuse across the thin walls of the capillaries in the lungs.
2. Intestines: The intestines also rely on capillaries for the absorption and transport of small molecules from digested food. Capillaries in the intestinal villi absorb nutrients such as glucose, amino acids, and fatty acids and transport them to the bloodstream.
3. Kidneys: The kidneys play a vital role in filtering waste products and excess water from the blood. Capillaries within the nephrons of the kidneys allow for the exchange of small molecules, such as waste products, electrolytes, and water, between the blood and urine.
Based on the information above, the structures that rely on capillaries for the exchange or movement of small molecules are the lungs, intestines, and kidneys.