Question

some organs of the human body are represented in the diagram below.

1. which statement best describes the functions of these organs?

a. b pumps blood to a for gas exchange.
b. a and b both produce carbon dioxide, which provides nutrients for other body parts.
c. a releases antibody in response to an infection in b.
d. the removal of wastes from both a and b involves the use of energy from atp

1. what is the primary function of the colon?

a. it produces saliva containing enzymes that begin breaking down food
b. it releases bile to help the body digest fats.
c. it absorbs nutrients from food to provide energy.
d. it absorbs excess water from the body before waste is eliminated.

1. the heart has a right side and a left side, each performing different functions. which of the following describes the difference between the two sides?

a. the right - side pumps oxygen - rich blood to the body, while the left side pumps oxygen - poor blood to the
b. the right - side pumps oxygen - poor blood to the lungs, while the left side pumps oxygen - rich blood to the
c. both sides pump oxygen - rich blood to the body but at different pressures.
d. both sides pump oxygen - poor blood to the lungs but through separate arteries
the image shows a model of a body system. use it to answer questions #17 and #18.

1. which sequence correctly shows the path of air from the outside environment to the site of gas exchange?

a. f→g→e→d→c
b. b→c→d→a→f
c. a→c→e→f→d
d. a→c→d→e→g
checkpoint: go back, check over your work by making sure you have a strong plan of attack for every question!

Explanation:

Question 14

• Option A: The heart (not B, which is a kidney) pumps blood to the lungs (A) for gas exchange. So A is wrong.
• Option B: Lungs (A) and kidneys (B) don't produce carbon dioxide for nutrients. Lungs exchange gases, kidneys filter waste. So B is wrong.
• Option C: Lungs don't release antibodies; immune system organs do. So C is wrong.
• Option D: Waste removal from lungs (gas exchange, passive but kidney's filtration and reabsorption use energy from ATP) and kidneys involves energy (active transport in kidneys). So D is correct.

• Option A: Saliva is produced by salivary glands, not the colon. So A is wrong.
• Option B: Bile is released by the liver, not the colon. So B is wrong.
• Option C: Small intestine absorbs most nutrients, colon doesn't. So C is wrong.
• Option D: Colon's primary function is to absorb excess water from digested food before waste elimination. So D is correct.

• Option A: Right side pumps oxygen - poor blood to lungs, left side pumps oxygen - rich blood to body. So A is wrong.
• Option B: Right side (atrium and ventricle) receives oxygen - poor blood from body and pumps it to lungs (for oxygenation). Left side receives oxygen - rich blood from lungs and pumps it to body. So B is correct.
• Option C: Only right side is related to lungs for oxygen - poor blood, left side to body. So C is wrong.
• Option D: Only right side pumps to lungs, left to body. So D is wrong.

Answer:

D. The removal of wastes from both A and B involves the use of energy from ATP

Question 15