The correct option is D.
Parietal cells are the epithelial cells which secrete hydrochloric acid and intrinsic factors. The cells are located in the gastric glands which are found in the linings of the walls of the stomach. The hydrochloric acid produced by the parietal cells helps in the conversion of the enzyme pepsinogen to pepsin during the digestion process.
Inner membrane of the chloroplasts
Explanation:
The present day eukayrotes are all considered to be derived from its original ancestor – the cyanobacteria.
Earlier, photosynthesis by the first photoautotrophs took place utilizing hydrogen sulphide as the electron donor. However, it was later when the cyanobacteria, which were originally residing in the mitochondria of an eukaryotic cell under an endosymbiotic relationship, developed into true chloroplasts, the use of water as electron donor to perform photosynthesis began.
The cyanobacteria were aerobic in nature and required oxygen to survive. They evolved the chloroplasts covered with an external protective membrane and an internal membrane. It is the internal membrane which contains all the necessary organelles or components necessary for photosynthesis like thyllakoids, stroma etc which helped them to utilize water as an electron donor during photosynthesis like all the eukaryotes.
Answer:
Algae
Explanation:
Algae are found in large groups and are diverse. They are plant-like organisms as well.
Photosynthesis is a process in which light dependent reactions is undertaken and can be studied elaborately. Photosynthesis is a process from which light energy transfers electrons from water to carbon hydroxide which produces carbohydrates. Water, Light intensity and temperature have huge hand in influencing the rate of photosynthesis.
1. Light energy is absorbed by electrons in the pigments and water molecules are split into Hydrogen atoms.
2. High Energy electrons move down the electron transport chain to pump the Hydrogen ions.
3. NADP+ molecules reacts with higher energy electrons along with H+ to form NADPH.
4. The H+ ions pass through ATP synthase causing the base to rotate and form ATP (Adenosine Triphosphate)
Answer:
To find out the impact of environment on the physical structure of lizard and natural selection.
Explanation:
Ecologists conduct an investigation on the survival of a species of lizards in order to study the impact of environment on the physical body of lizard and natural selection. The ecologists find out that environment has direct impact on the body structure of lizard. Those lizards that spend more time on the ground, have longer legs in order to run fast, while on the other hand, species that lives in the trees usually have shorter legs in order to easily climb on the trees so these body structure helps them in survival and movement.
