The appropriate answer in the KREBS CYCLE. The Krebs cycle is also called the citric acid cycle. It is a cyclic reaction series involving several carboxylic acids in the mitochondrial matrix. Acetyl groups are oxidized to carbon dioxide while reducing specific co-enzymes. These co-enzymes are now available for ATP synthesis. This cycle or process occurs in the cells mitochondria.
Answer:
d. Hemoglobin helps maintain a constant pH in the blood by binding with H⁺ions released from bicarbonate ions.
Explanation:
The presence (CO₂) in in the erythrocytes lowers its pH as a result the affinity of hemoglobin decreases for oxygen. The carbon dioxide (CO₂) reacts with water to form carbonic acid in the presence of the enzyme carbonic anhydrase which is present in the erythrocytes or red blood cells. The carbonic acid then changes into two ions hydrogen ion (H⁺) and bicarbonate ion (HCO₃⁻). As a result of H⁺ ions, the pH of blood drops. Haemoglobin pick up hydrogen ions to balance the decrease in pH. Thus, haemoglobin helps in maintaining constant pH or keep pH of blood in buffer.
The difference in the concentration of a substance across a space is called a concentration [ equilibrium / gradient ]. ... If there is a concentration gradient, substances will move from an area of high concentration to an area of [ equal / low ] concentration
It is indeed A, all of the other answers would be examples of how not to conserve non-renewable resources
Answer:
D) Tuberculosis
Explanation:
A) Herpes is a sexually transmitted disease
B) Syphilis is a sexually transmitted disease
C) Chlamydia is a sexually transmitted disease
D) Tuberculosis cannot be transmitted sexually. Tuberculosis is transmitted through air. Therefore D) is the correct answer.
