Answer:
Nucleus
:
Holds DNA and all the components of proteins.
All Eukaryotic cells have a nucleus and the rest of the membrane-bound organelles
Prokaryotic cells have no nucleus
Ribosomes
:
Take the amino acids and package them into protein chains.
Ribosomes are on the outside of the endoplasmic reticulum
Endoplasmic Reticulum
:
Organelle that transports the completed protein within the cell
Golgi Apparatus
Transports the completed protein from the ER to the outside of the cell. Vesicles carrying the proteins break off the Golgi apparatus moving the proteins outside of the cell
Plasma Membrane
Selectively permeable membrane that allows passage of many materials into and out of the cell.
Transport proteins on the surface help send out messenger proteins to other cells.
Explanation:
Once proteins leave the cell they will be received by another cell. In this way, cells are able to communicate with each other. All cells have protein receptors on them which recognize specific proteins.
Answer:
One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Fossils of similar types of plants and animals in rocks of a similar age have been found on the shores of different continents, suggesting that the continents were once joined
Answer:
excitable
Explanation:
All muscle types will respond to an electrical stimulus because all muscle cells are excitable.
Excitability is response of muscle to signal which delivered through the motor neuron.
Excitability is stretching of muscles.
The contraction and relaxation of muscle occur in following way:
Muscle contraction begins with signal. The contraction occur when nervous system send signals. The impulse which is called signal is travel through a motor neuron.
The whole process include following three steps:
1) Message is traveled from nervous to muscular system and trigger the chemical reaction.
2) This chemical reaction causes the muscle fibers to reorganize in such a way that shorter the length of them which is called contraction.
3) when this signal is no longer remain , reverse chemical process occur and muscles relax.
I think it’s C I hope it’s right I’m sorry if I’m wrong
Nitrogen is needed by organisms to make amino acid which is essential for protein synthesis
