The question is incomplete as it does not have the answer which are:
A) They do not participate in the Calvin cycle.
B) They use PEP carboxylase to initially fix CO2.
C) They conserve water more efficiently.
D) They exclude oxygen from their tissues.
Answer:
They use PEP carboxylase to initially fix CO2.
Explanation:
Photorespiration is a wasteful process in plants which produces less amount of ATP and low glucose level as the RUBISCO enzyme binds with the oxygen instead of Carbon dioxide.
The Rubisco enzyme binds with the carbon dioxide usually during the Calvin cycle but in hot and dry conditions it binds the oxygen.
So to avoid the photorespiration, plants evolved adaptive features in the anatomy of the leaf that is they separated the photosynthetic steps by forming wreath-like structure around the vascular bundles called Kranz anatomy.
Instead of Rubisco, PEP carboxylase binds the carbon dioxide, convert it to malate and then transport it to bundle sheath cell where the Calvin cycle takes place as malate provide Carbon dioxide gas to Rubisco enzyme.
Thus, the selected option is correct.
People who suffer from attention-deficit/hyperactivity disorder (ADHD) tend to have unusually low levels of dopamine.
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ADHD is a brain disorder characterized by problems in paying attention and excessive activity and it is suggested that lower levels of dopamine (elevated number of dopamine transporters) are associated with symptoms of ADHD. ADHD is associated with functional impairments of dopamine pathways and also norepinephrine pathways because these pathways are responsible for modulating <span>executive function<span> (cognitive control of behaviour).</span></span></span>
Answer:
Cellular respiration
Explanation:
Respiration is the process by which energy is made. Aerobic respiration requires oxygen.
All the other processes listed do not require oxygen to.
Since the blood is moving out of the heart by the left ventricle and aorta the blood needs to get pumped and circulated through the heart. More it contracts the better circulation of blood throughout the body!