Answer:
sarcoplasmic reticulum deteriorates and ATP production is stopped
Explanation:
Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.
Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.
Answer: synthesize a pre-rRNA 45S (35S in yeast), which matures and will form the major RNA sections of the ribosome. RNA polymerase II synthesizes precursors of mRNAs and most snRNA and microRNAs. RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs found in the nucleus and cytosol.
Explanation:
The diagram is not given in the question, so the diagram is attached below.
Answer:
chloroplast, thylakoid space
Explanation:
The photosynthesis process is categorized in two steps light-dependent reactions and light-independent reactions.
In light-dependent reaction, chlorophyll absorbs one photon and loses one electron. This initiates the flow of electrons down an electron transport chain and result into reduction of NADP to NADPH.
Along with this, it creates a proton gradient or concentration across the chloroplast membrane and into the thylakoid space. The proton concentration or energy gradient is then used by ATP synthase for the synthesis of ATP and cellular respiration.
Hence, the correct answer is chloroplast and thylakoid space
Answer: The question is is incomplete, here are the options.
A.Loonand O Charles Darwin named them Geospiza leodarwini in honor of his son Leonard.
B. They come from the Darwin archipelago off the coast of Ecuador C. C. Charles Darwin collected the first scientific specimens.
D.John Gould placed them in the genus Darwinospiza
Correct option is C.
Explanation:
Charles Darwin collected the first scientific specimens.
Darwin's finches play vital role in the development of Darwin's theory of evolution and natural selection. This is because the birds called Darwin's finished have variable size and shape making them important for the development of the theory.
Theory of natural selection and evolution which was developed by Darwin states that organisms changes over time as a result in variation in it's characteristics or behavioral traits to survive , adapt and reproduce in it's environment.
