Answer:
The answer is A.
Explanation:
Photosynthesis stores energy in complex organic molecules, while respiration releases it.
Answer:
Lightly pigmented people tend to be at higher risk of vitamin D deficiency
Explanation:
BACKGROUND KNOWLEDGE:
Human skin is the largest organ of the body which makes boundary line between environment and internal conditions. Human skin cell produces pigment called melanin when ever it is subjected to Sun. More the melanin pigment produced more will be the skin darkens. Ultraviolet (UV) radiations also come from Sun and responsible for more pigmentation.
ANSWER EXPLANATION:
According to the question darkly pigmentation only occurs when their is high level of UV radiations. High level of UV radiations are also responsible for Vitamin D production.
People with lightly pigmented means that there environment has low level of UV radiations which are the requirement of Vitamin D production. Hence due to low UV radiations peoples with light pigmentation's are also be at higher risk of vitamin D deficiency
The awnsers would be D for the first one and A for the second. Let me know if you want an explanation.
In light-dependent reactions, the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules like ATP and NADPH.Light energy is harnessed in Photosystems I and II, both of which are present in the thylakoid membranes of chloroplasts.In light-independent reactions (the Calvin cycle), carbohydrate molecules are assembled from carbon dioxide using the chemical energy harvested during the light-dependent reactions.
TERM[ edit ]
photosystem
Either of two biochemical systems active in chloroplasts that are part of photosynthesis.
Source: Boundless. “The Two Parts of Photosynthesis.” Boundless Biology. Boundless, 26 May. 2016. Retrieved 09 Nov. 2016 from https://www.boundless.com/biology/textbooks/boundless-biology-textbook/photosynthesis-8/overview-of-photosynthesis-80/the-two-parts-of-photosynthesis-373-11599/
