The pre-cell (before the appearance of life) formed during Chemical Evolution has an outer membrane that is a phospholipid bilayer. Given the properties of the water in the prebiotic ocean. One would expect that H2O and ions would:  A) move through the fatty acid layer of the phospholipid bilayer out of the pre-cell, B) be unable to move through the bilayer, C) move through the phosphate groups  in the pre cell phospholipid bilayer and move into cell,   D) dissolve the bilayer, E) transport proteins into the pre cell.

Explain the difference between a prokaryotic cell and a eukaryotic cell.  List at least five components that are unique to the eukaryotic cell. Use all relative terms when describe structure and function of these components.

An oceanographer studying the deepest parts of the ocean discovered a new organism growing next to a volcanic vent. This part of the ocean is so deep, no sunlight reaches it at all. The organism they found was too small to see with the eye, and was only discovered after looking through a microscope at samples from this volcanic vent. The oceanographer noticed that the cells of the organism all looked identical and were arranged in long chains. No organelles were visible. Select all the characteristics that accurately describe this organism! O Prokaryotic O Eukaryotic Unicellular O Multicellular O Phototrophic O Heterotrophic

Give typing answer with explanation and conclusion Which of the following is NOT a direct function of the cytoskeleton? Question 11 options: A) intracellular transport B) facilitates animal cell division C) formation of ATP D) provision of internal support

The process of endocytosis involves the formation of vesicles called endosomes. Which of the following best describes the pH of the endosomal interior? a.) The interior of an endosome generally has a higher pH than cytoplasm. b.) The interior of an endosome generally had a lower pH than cytoplasm. c.) The interior of an endosome generally had a pH similar to cytoplasm.

Which of the following statements are TRUE about eukaryotes?(i) They are cells with a nucleus.(ii) They are found both in humans and multicellular organisms.(iii) Endoplasmic reticulum is present in eukaryotes.(iv) They all have chemically complexed cell wall. Select one: a. (i), (ii) and (iv) b. (i), (ii) and (iii) c. (ii), (iii) and (iv) d. (i), (iii) and (iv)

While eukaryotic cells are generally larger than prokaryotic cells, metabolic requirements place upper limits on how large eukaryotic cells can become. Which of the following statements does not accurately describe this? As multicellular organisms grow in size, they do not have larger cells; rather, they have a larger number of cells. As a cell increases in size, the surface area grows faster than volume. If a cell is too large, there will not be enough surface area for the exchange or elimination of oxygen, nutrients, and wastes. The surface area to volume ratio must remain as large as possible

Which of the following were once bacteria? (select all that apply)  a) mitochondria b) chloroplasts c) nuclei d) golgi apparatus e) endoplasmic reticulum

Label each of the following as a characteristic of a prokaryote or a eukaryote.(a) DNA is surrounded by a membrane(b) Has a cell wall as well as a cell membrane(c) Contains chloroplasts(d) Lives in specialized groups termed organs(e) Single-celled organisms

18. Which of the following is a major difference between eukaryotic and prokaryotic cells? A) eukaryotic cells contain a nucleus, prokaryotic cells do not B) eukaryotic cells contain organelles, prokaryotic cells do not C) eukaryotic cells are much larger than prokaryotic cells D) eukaryotic cells often form multicellular organisms, prokaryotic cells do not E) all of the above