Answer:
I believe the correct answer is <u>C. alveoli → bronchus → trachea → larynx → pharynx → nose.</u>
Explanation:
<u>Blood capillaries will carry the carbon dioxide from the entire body to the alveoli, the alveoli will combine to form bronchus. And so on, until carbon dioxide is exhaled from the nose.</u>
Hope I could help!
Pesinogen is converted to the active pepsin by hydrochloric acid present in gastric juice.
<h3>What are enzymes?</h3>
Enzymes are biological molecules which catalyze biochemical reactions occurring in living organisms.
Enzymes acts on different substances in the body.
Enzymes that act on proteins are known as proteases.
Some enzymes are secreted in the inactive form.
For example pepsin is secreted as pesinogen.
Pesinogen is converted to the active pepsin by hydrochloric acid present in gastric juice.
Learn more about enzymes at: brainly.com/question/1596855
Answer: B, C and D
Explanation:
Option A is wrong because protons are not pumped into the matrix of the mitochondria, but rather protons are pumped from the mitochondrial matrix to the inner membrane space.
Option B is correct. The NADH dehydrogenase, cytochrome b-c1, and cytochrome oxidase complexes are all protons pumps and pump protons across the membrane.
Option C. Is correct. The pH inside the mitochondrial matrix is higher than in the innner membrane space.
Option D is correct. The mitochondria use the proton gradient to synthesize ATP by the enzyme ATP synthase.
Answer;
A. the Sun's rays are nearly perpendicular to Earth's surface.
Explanation;
-Tropical region receives more solar radiation not only because the Sun’s rays hit the region more directly, but also because they travel through less of the atmosphere to get there.
-Some radiation is absorbed as it travels through the atmosphere, so less energy is lost in tropical regions.
The answer is; A
In the lymph vessels, a few lymphocytes ‘ patrol’ the tissues as they scan for antigens. When they detect an antigen, including surface antigens of rogue cells (cancer cells), the antigen-presenting cells (APCs) present this to the cognate lymphocytes turning them to effector cells (such as effector T-cells). The effector T- cells bind to the cancer cells and induce apoptosis.
