Since prokaryotic cells lack membrane-bound orgnelles, many metabolic functions in the cell take place in the cytoplasm.
<u>Explanation:</u>
The cytoplasm is the gel-like element encompassed inside the cell membrane, which is built up of water, proteins, nucleic acids, inorganic salts, etc. Largest metabolic activities take place inside the cytoplasm, and subcellular structures, like ribosomes, plasmids, and cytoplasmic granules, are placed in the cytoplasm.
Cytosol comprises a mix of molecules such as protein complexes, enzymes, and more. All this composition functions collectively to take out metabolic functions inside the cytoplasm, enabling organelles to communicate with one another. In a way, cytosol itself has no function, but allows for many other functions to take place within it, much like the larger cytoplasm network itself.
False. It's not always reliable. For example, in lab mice, saccharin has caused tumors. But for humans to get cancer from saccharin, we would have to take in astronomical levels of saccharin, which we, as humans, don't do.
Answer:
In the first step of meiosis I, the chromosomes/genetic material of the cell condenses into a visible form, into a form called heterochromatin. The nucleolus also disappears.
In the second step, a process called synapsis occurs. This is when homologous chromosomes align themselves, gene by gene.
In the third step, crossing over occurs. Segments of corresponding DNA are cut and exchanged between non-sister chromatids of the formed tetrads.
In the fourth step, the nucleus fragments, the nuclear envelope fragments, the two centrosomes (if we're talking about an animal cell) separate from each other as their asters and mitotic spindles (mostly microtubules (kinetochore and non-kinetochore) lengthen. The microtubules extending from the centrosomes can now connect to chromosomes.
Answer: <u><em>D. An observation that has a number associated with it</em></u>
Explanation: The answer is D. An observation that has a number associated with it. I would explain further, but it is pretty self explanatory.
<em>Good luck!</em>
Answer:
B. CO2 out
Explanation:
The excretion is the process of removal of the waste product from the body. The carbon dioxide is the byproduct of the aerobic respiration, which is carries from the tissues and the lungs by blood. In the lungs at alveoli, the carbon dioxide is transferred from the blood to the lungs and released out through the nostrils. Hence, the out of the carbon dioxide represent excretion through lungs.
