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KATRIN_1 [288]
3 years ago
12

The sedimentation coefficient:

Biology
1 answer:
chubhunter [2.5K]3 years ago
8 0

Answer:

option D is incorrect

Explanation:

the sedimentation coefficient is measured in Svedberg units named after the scientist Theodore Svedberg. the shape of the particle being measured in the ultracentrifuge is one of the factors that determines the sedimentation coefficient. the values are usually not additive as the sedimentation coefficient is based on the rate at which a particle sediments in an ultracentrifuge and not on the size. for example, the sedimentation coefficient of eukaryotic ribosome is 80S but is made up of the 60S large subunit and the 40S small subunit.

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A relationship in which one species consumes and the other is killed is known as
Vlad [161]
Predation


It can be explained in that way or also called Predatory/prey relationships.
Parasitism is when one is benefited and the other harmed (ie leech and human)
Commensalism is when one is benefited and the other not affected (Tree frog and rainforest tree)
Mutualism is when both are benefited (Bee eats honey and Flower is pollinated).
6 0
2 years ago
Read 2 more answers
why would having both polar and nonpolar properties in a protective boundary be advantageous for the cell?
Reika [66]

Explanation:

The polar nature of the membrane’s surface can attract polar molecules, where they can later be transported through various mechanisms. Also, the non-polar  region of the membrane allows for the movement of small non-polar molecules across the membrane’s interior, while preventing the movement of polar molecules, thus maintaining the cell’s composition of solutes and other substances by limiting their movement.

Further explanation:

Lipids are composed of fatty acids which form the hydrophobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backbone) with up to 36 carbons. Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties i.e. they are amphiphilic. Via diffusion, small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.

Similarly via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer, this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins; these allow large molecules called solutes (including essential biomolecules) to cross the membrane.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

5 0
3 years ago
Find the kinetic energy of a ball moving at 45 m/s with a mass of 0.18kg
mamaluj [8]

Answer:182.25 joules

Explanation:

Mass=0.18kg

Velocity=45m/s

Kinetic energy=(mass x(velocity)^2)➗2

Kinetic energy=(0.18 x 45^2) ➗ 2

Kinetic energy=(0.18x45x45) ➗ 2

Kinetic energy=364.5 ➗ 2

Kinetic energy=182.25

Kinetic energy=182.25 joules

5 0
3 years ago
What is an example of a chemical reaction that would take place in a living organism?
guapka [62]
There are many reactions, like Oxidation and Reduction
8 0
3 years ago
Transcribe this strand of DNA into a strand of mRNA<br> TAC-AAA-CCC-TTT-GGG-ATA-ACT
Tems11 [23]
MRNA: AUG-UUU-GGG-CCC-UAU-UGA
Here’s link to quickly convert: www.dnatomrna.com
4 0
2 years ago
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