A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand.

Summary. Like all living organisms, plants use deoxyribonucleic acid (DNA) as their genetic material. The DNA in plant cells is found in the nucleus, the mitochondria and the chloroplasts.

Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Where is DNA found? In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus. Because the cell is very small, and because organisms have many DNA molecules per cell, each DNA molecule must be tightly packaged. This packaged form of the DNA is called a chromosome.

nucleoid

In modern molecular biology labs, purified DNA polymerase is used routinely – to copy DNA by PCR (the polymerase chain reaction), for various recombinant DNA techniques, and to run sequencing reactions.

Extranuclear DNA. DNA outside the nucleus is referred to as extranuclear DNA. Examples of extranuclear DNAs are mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA). The presence of nucleic acids in these organelles enables them to become semi-autonomous, self-reproducing organelles.

nucleic acids

Deoxyribonucleic Acid

deoxyribonucleic acid: an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms, constructed of two nucleotide strands coiled around each other in a ladderlike arrangement with the sidepieces composed of alternating phosphate …

DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), or thymine (T).

DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. When an ice-cold alcohol is added to a solution of DNA, the DNA precipitates out of solution. If there is enough DNA in the solution, you will see a stringy white mass.

Four steps are used to remove and purify the DNA from the rest of the cell.

• Lysis.
• Precipitation.
• Wash.
• Resuspension.

Carnivorous plants are photosynthetic and do not “eat” insects and other prey as a source of energy. Most carnivorous plants attract and digest insects and other invertebrates, but some large pitcher plants have been known to digest frogs, rodents, and other vertebrates.

Attenborough’s pitcher plant

Animals that eat plants exclusively are herbivores, and animals that eat only meat are carnivores. When animals eat both plants and meat, they are called omnivores. A large carnivore might hunt down large herbivores such as elk and deer.

Carnivorous plant, sometimes called insectivorous plant, any plant especially adapted for capturing and digesting insects and other animals by means of ingenious pitfalls and traps.

They come from the soil through their roots. Once all the ingredients like water, carbon dioxide, and sunlight are combined, they form Glucose (Sugar Molecules) and Oxygen. This glucose is what plants consume to survive.

Venus Flytrap

Venus flytraps can eat human flesh. In the wild, they can capture and consume meat from small reptiles or rodents. However, due to their small size, Venus flytraps can’t eat a human.

Venus flytraps do not excrete or poop like animals. Venus flytraps absorb the nutrients bugs they consume through their leaves. They process the soft tissue from the victim and leave behind the exoskeleton. Venus flytraps do not poop, but they leave some matter behind from their prey.

Fortunately for people, Venus flytrap plants can’t eat anything much bigger than a housefly and mostly they eat mosquitoes and gnats. If you put the tip of your finger in the flytrap’s bug eating mouth, it will quickly snap shut, but it won’t hurt at all.

Venus flytraps can’t hurt you, even if you leave your fingers in there for a long time. Even the humans who don’t uproot them, trample them, or trigger them enough times that the plants fatally expend their energy can accidentally poison flytraps by giving them tap water or starving them of sunlight.