1. Contraction of the diaphragm causes:
A. a person to exhale.
B. the size of the chest cavity to increase.
C. air to flow from the lungs to the outside.
D. compression of the lungs.
is it B
2. The function of the large intestine is to:
A. supply enzymes for digestion.
B. remove water.
C. absorb nutrients.
D. produce vitamins.
is it C
3. An example of assimilation is the:
A. synthesis of carbon.
B. synthesis of proteins.
C. hydrolysis of water.
D. hydrolysis of oxygen.
is it A
1. Contraction of the diaphragm causes: B. the size of the chest cavity to increase.
To determine the correct answer, we need to understand the function of the diaphragm. The diaphragm is a dome-shaped muscle located at the base of the lungs. When this muscle contracts, it moves downwards, causing an expansion of the chest cavity. This expansion creates more space for the lungs to expand, facilitating inhalation and causing a person to breathe in air. Therefore, the correct answer is B. the size of the chest cavity to increase.
2. The function of the large intestine is to: B. remove water.
To determine the correct answer, we need to understand the function of the large intestine. The large intestine is the final section of the digestive system, and its primary function is to absorb water from the remaining food material that enters it from the small intestine. The large intestine also absorbs some electrolytes (ions) and forms and stores feces. Therefore, the correct answer is B. remove water.
3. An example of assimilation is the: B. synthesis of proteins.
Assimilation refers to the process of incorporating or integrating nutrients or other substances into the body's cells and tissues. In this context, assimilation generally refers to the conversion of absorbed nutrients into substances that can be used for growth, repair, or energy production. One example of assimilation is the synthesis or production of proteins, which involves the incorporation of amino acids into larger protein molecules. Therefore, the correct answer is B. synthesis of proteins.