- Globular proteins so generally soluble in water
- Have active sites which are specific shapes which are complementary to a correct substrate
- Enzymes are highly specific due to their tertiary structure
Enzymes lower the amount of activation energy that’s needed by forming an enzyme-substrate…
Sometimes Evolution Sucks….
(Source: spidersonmywall)
Bacteria undergo an asexual replication process called binary fission by doubling in size and content then splitting in half.
This is the first GIF that I’ve created myself!
Video credit for GIF: http://www.youtube.com/watch?v=gEwzDydciWc
(Source: biologylair)
(Source: biologylair)
Colossal Squid (Mesonychoteuthis hamiltoni)
Though it is known from only a few specimens, current estimates put its maximum size at 12–14 metres (39–46 ft) long,based on analysis of smaller and immature specimens, making it the largest known invertebrate.
Unlike the giant squid, whose arms and tentacles only have suckers lined with small teeth, the colossal squid’s limbs are also equipped with sharp hooks: some swivelling, others three-pointed.
(via sagansense)
Colossal Squid (Mesonychoteuthis hamiltoni)
Though it is known from only a few specimens, current estimates put its maximum size at 12–14 metres (39–46 ft) long,based on analysis of smaller and immature specimens, making it the largest known invertebrate.
Unlike the giant squid, whose arms and tentacles only have suckers lined with small teeth, the colossal squid’s limbs are also equipped with sharp hooks: some swivelling, others three-pointed.
(via sagansense)
I really like jellyfish.
(Source: cheesecakecats)
Mr T
collagen structure
How do you get past a cell wall?
There are two basic types of cells: Prokaryotes and and Eukaryotes.
The prefix “pro-” means “before” and the suffix “-karyotic” comes from the Greek word “karyose” which means “kernel” (as in a kernel of grain), and refers to the nucleus of a cell; thus the term prokaryotic means before nuclei. Basically, any cell that lacks a membrane-bound nucleus is classified as a prokaryote. Usually, most prokaryotic cells are also bacteria and-unlike eukaryotic cells- are not dependent on oxygen and contain few determinable internal structures.
On the other hand, the prefix “eu-” means “true” or “good” and again the suffix “-karyotic” refers to the nuclei of cells; thus the term eukaryotic means possessing a true nucleus. Eukaryotes (more formally known as Eukarya or Eukaryota) contain complex structures (organelles like mitochondria, chloroplasts, and the Golgi apparatus) enclosed within membranes and are usually much larger than Prokaryotes. Basically, all species of large complex organisms are eukaryotes. This includes animals, plants and fungi, although most species of eukaryote are protist microorganisms.
