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Tju [1.3M]
3 years ago
10

What molecule enables large molecules to cross the membrane?

Biology
1 answer:
Shalnov [3]3 years ago
6 0

Answer:hydrophobic molecules

Explanation:

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A surgeon recommends surgery to make the genitals of an intersex infant conform to an ideal of normal genitalia. a sociologist m
Sindrei [870]

Base on the given scenario, a sociologist might view the doctor’s recommendation as a result of belief in a binary sex system of which the social norm is about in terms of topics related with the gender and sex of humans and the doctors recommendations are all because of their beliefs and perspectives that they had acquire.

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3 years ago
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Nearly all human societies have used fermentation to produce alcoholic beverages or to preserve food. Suggest at least one hypot
k0ka [10]

Explanation:

Alcoholic Fermentation is a biological fermentation process in the absence of oxygen (- O2), caused by the activity of some microorganisms that process carbohydrates (as a rule, sugars: for example, glucose, fructose, sucrose , that is, any substance that has the empirical form of glucose, that is, a hexose) to obtain as final products: an alcohol in the form of ethanol (whose chemical formula is: CH3-CH2-OH), carbon dioxide ( CO2) in the form of gas and adenosine triphosphate (ATP) molecules consumed by the microorganisms themselves in their anaerobic energy cellular metabolism. The resulting ethanol is used in the production of some alcoholic beverages, such as wine, beer, cider, cava, etc. At present, ethanol has also begun to be synthesized through large-scale industrial fermentation to be Used as a biofuel.

Alcoholic fermentation has the biological purpose of providing anaerobic energy to unicellular microorganisms (yeasts) in the absence of oxygen from glucose. In the process, yeasts obtain energy by dissociating glucose molecules and generate alcohol and CO2 as waste. The yeasts and bacteria that cause this phenomenon are very common microorganisms in fruits and cereals and contribute greatly to the taste of fermented products (see sensory evaluation) One of the main characteristics of these microorganisms is that they live in completely lacking environments of oxygen (O2), especially during the chemical reaction, and that is why alcoholic fermentation is an anaerobic or anaerobic process.

4 0
3 years ago
Which of the following events occurs during Meiosis I? The number of chromosomes increases from the haploid number to the diploi
BlackZzzverrR [31]

Answer:

Homologous chromosomes are separated from each other.

Explanation:

In meiosis I during metaphase, all the homologous chromosomes of the cell pair up and get arranged near equatorial plate. Subsequently after completion of meiosis I, these  homologous chromosomes get separated from each other so that out of the two cells which are produced after meiosis I could get one chromosome each from the homologous pair. During anaphase I of meiosis I, spindle fibres are formed which drag each of these homologous chromosomes towards two opposite poles. Soon after that, cytokinesis occurs during telophase I of meiosis I leading to the generation of two cells.  

For example, humans have 46 chromosomes or 23 pairs of homologous chromosomes. After completion of meiosis I, two cells are produced and each one of them has 23 chromosomes.  

5 0
3 years ago
What are the characteristics of most unsaturated fatty acids found within a human cell?.
kati45 [8]

The characteristics of most unsaturated fatty acids found within a human cell are deprotonated carboxylic acid and cis double bonds.

  • With the exception of steroids, fatty acids are carboxylic acids that provide the structural foundation of fats, oils, and all other types of lipids. More than 70 have been found in the natural world.
  • They are typically unbranched, contain an even number of carbon atoms (often 12–20), and can be divided into groups based on the existence and quantity of carbon–carbon double bonds.
  • As a result, saturated fatty acids don't have any carbon-to-carbon double bonds, while monounsaturated fatty acids have one, and polyunsaturated fatty acids have two or more.

learn more about unsaturated fatty acids here:

brainly.com/question/3007736

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2 years ago
Helicobacter pylori survives in the stomach due to: a. a thick capsular layer b. endospore formation c. a teichoic acid receptor
Nikolay [14]
The answer is A, a thick capsular layer
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3 years ago
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