Which macromolecule forms a double layer as the primary structure of cell membranes?fatsoilsphospholipidssteroids
Answers
The correct answer is:
phospholipids
Phospholipids - they are made up of hydrophobic tails (inside the double layer) and hydrophilic heads (on the outside of the membrane).
Explanation:
Cell membranes comprise lipids (phospholipids and cholesterol), proteins and carbohydrates assemblies that are connected to some of the lipids and proteins.
Phospholipids are composed of a polar head and non-polar (hydrophobic) tail. They line up such that the heads and the tail groups are side by side to form a single layer due to the information between the head groups and the tail groups. Two of these layers line up with the hydrophobic tail groups facing each other to prevent the hydrophobic groups away from the polar cover collections of other phospholipids and from the water in the adjoining environment.
Related Questions
If a plant can be grown from a cutting of its parent, what type of reproduction does this represent?
What is the primary reason the signaling molecule is not received by every cell nucleus? Option 1: Cell nuclei have varying sizes. Option 2: The signaling molecule is too large. Option 3: Not all cells have receptors for the molecule. Option 4: The molecule is rapidly degraded.
Which activity is most likely to trigger secondary succession?
Which of Mendel's laws or principles explains that traits are passed from parents to offspring individually instead of as pairs, groups, or sets?A. The Principle DominanceB. the law of independent assortmentC. the law of segregationD. the principle of genetics
cellular
organ
system
Answers
Answer:a) Tissue
Explanation: even though it looks hard, the bone is still a tissue along with ligaments and cartilage
b. life-cycle
c. intergenerational
d. structural
Answers
Answer:
a. intragenerational
Explanation:
Intragenerational mobility by definition: refers to a person's social movements throughout his or her lifespan. It wouldn't be structural or life cycle because those are remotely related to social mobility. Lastly it wouldn't be intergenerational because by definition is means: elating to, involving, or affecting several generations. Which is not related to social mobility at all.
Answers
Energy is released in a cell as a result of the ATP phosphate-phosphate link being broken. The correct option is B.
What is ATP?
A chemical that is a part of all livingcells and gives energy to a variety of metabolic processes, including the production of RNA.
In patients with advanced solidtumors, the effects of laboratory-produced ATP on weight loss and muscle strength are being investigated. Likewise known as adenosinetriphosphate.
An organic substance called adenosine triphosphate powers a variety of biological functions in living cells, including muscularcontraction, nerve impulse transmission, condensate dissolving, and chemical production.
The breakdown of the ATP phosphate-phosphate connection causes energy to be released in a cell.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
Lysosome contents are released in a cell.
Energy is released in a cell.
Water is transported into an animal cell
Light energy is absorbed in a plant cell.
b. marine
c. estuaries
d. freshwater
Answers
Freshwater ecosystem is part of ponds, lakes, streams and rivers. i.e, option D is correct.
What is ecosystem?
Ecosystem, the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space.
Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They include lakes, ponds, rivers, streams, springs, bogs, and wetlands. They can be contrasted with marine ecosystems, which have a larger salt content.
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Answers
Answer:
orbit
Explanation:
The path that a body follows as it travels around another body in space is its ---- ORBIT
Answers
A field investigation includes observation of free-living animals in their natural habitat without affecting them, their behavior, or their habitat. So, observation of tigers' activity in their native habitat is an example of the field investigation. The investigator would simply observe their behavior, not affecting the tigers in any way.