Chloroplast

A plastid containing chlorophyll developed only in cells exposed to the light Chloroplasts are minute flattened granules usually occurring in great numbers in the cytoplasm near the cell wall and consist of a colorless ground substance saturated with chlorophyll pigments Under light of varying intensity they exhibit phototactic movements In animals chloroplasts occur only in certain low forms...

Photosynthesis

The process of constructive metabolism by which carbohydrates are formed from water vapor and the carbon dioxide of the air in the chlorophyll containing tissues of plants exposed to the action of light It was formerly called assimilation but this is now commonly used as in animal physiology The details of the process are not yet clearly known Baeyers theory is that the carbon dioxide is reduced to carbon monoxide which uniting with the hydrogen of the water in the cell produces formaldehyde the latter forming various sugars through polymerization Vines suggests that the carbohydrates are secretion products of the chloroplasts derived from decomposition of previously formed proteids The food substances are usually quickly translocated those that accumulate being changed to starch which appears in the cells almost simultaneously with the sugars The chloroplasts perform photosynthesis only in light and within a certain range of temperature varying according to climate This is the only wa...

cyanobacterium

any of a group of photosynthetic autotrophic prokaryotic microorganisms possessing characteristics of both bacteria and plants When classed as bacteria they are assigned to the Cyanobacteria when classed as plants they are assigned to the Cyanophyta They were earlier named blue green algae a term less used now in technical discussions Since the chlorophyll within the cyanobacteria is diffused throughout the cell rather than being contained in chloroplasts they are no longer thought of as true plants...

eucaryote

an organism with good or membrane bound nuclei having multiple chromosomes eucaryotes also have other membrane bound organelles such as mitochondria or chloroplasts within the cytoplasm enclosed by the outer membrane Such cells are characteristic of all life forms except primitive microorganisms such as bacteria and blue green algae Contrasted with prokaryote...

eukaryote

an organism with good or membrane bound nuclei having multiple chromosomes eucaryotes also have other membrane bound organelles such as mitochondria or chloroplasts within the cytoplasm enclosed by the outer membrane Such cells are characteristic of all life forms except primitive microorganisms such as bacteria and blue green algae Contrasted with prokaryote...

Chloroplast - Law Dictionary Search Results

Chloroplast

Photosynthesis

cyanobacterium

eucaryote

eukaryote