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LekaFEV [45]
2 years ago
10

Why is the caloric value of some sugar alcohols less than 4 kcal/g? a. They cannot be transported into the mitochondria. b. None

remains in the digestive tract. c. They are not completely absorbed. d. They are not completely metabolized by cells for energy.
Biology
1 answer:
avanturin [10]2 years ago
5 0

Answer:

Option-C

Explanation:

The sugar alcohols are the carbohydrates which are neither considered sugars nor alcohols but they partially resemble the structure of both of these sugars and alcohol.

The sugar alcohols are naturally present in the vegetables and fruits but they are also artificially synthesised like xylitol, lactitol, mannitol and others.

They are considered the alternative from of sugar but they provide less energy as compared to carbohydrates like they provide about 0-3 kcal per gram whereas sugar provides 4 kcal per gram.

This difference is due to the reason that they are not completely absorbed by the human body and also they are incompletely metabolized therefore provide less energy.

Thus, Option-C is the correct answer.

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For what purpose(s) might a karyotype be prepared?
Lynna [10]

Answer:

The correct answer will be option-C.

Explanation:

A karyotype is the visual representation of the chromosome numbers present in a cell of an organism.

The karyotyping is a technique performed to prepare the karyotype of the organism which plays an important role in analyzing the chromosomal abnormalities of the organism.

The analysis of the chromosomal abnormalities helps us study the genetic disorder and diagnose genetic disease. The karyotyping is performed during pregnancy which helps visualize the disease in a family with a history of genetic disorders.

Thus, Option-C is the correct answer.

4 0
2 years ago
How do environmental pressures promote a change in species diversity and abundance?​
andrew-mc [135]

Answer:

temperature. humidity environment

Explanation:

species will adapt to environment temperature and humidity whether it is a rain forest or snowy mountains

8 0
2 years ago
Cephlochordates have a backbone that extends from their tail to where? their gills their anus their heart their head
Lostsunrise [7]
Pretty sure it’s to their neck.
5 0
2 years ago
Which of the following claims about the TYR, TRP2, and TRP1 mammalian genes is most likely to be accurate?
Illusion [34]

The TYR, TRP2, and TRP1 genes are located next to each other on a single chromosome and are organized into an operon is most likely to be accurate.

The option a is correct.

Explanation:

The genes for the Tyrosinase, TRP2 and TRP1 are located on the same chromosome and are operons. These are operons because they are controlled by same transcription factors on mRNA.

Tyrosinase enzyme is important for the synthesis of melanin, eye pigments and hair colour. The synthesis of all these is completed in three distinct reactions  catalysed by TRP1, TRP2 and Tyr genes. These work as operon and the protein product is almost 40% similar of the three genes.

The amount of melanin production depends on tyrosinase enzyme activity of all the three genes.

The genetic regulation is done by operons.

4 0
2 years ago
Nerve fibers from the olfactory bulb project directly to ________. nerve fibers from the olfactory bulb project directly to ____
ohaa [14]

The olfactory cortex (nucus) of the temporal lobe is where the nerve fibers of the olfactory bulb projects directly. This cortex is where you get the smell sensation before determining what the smell actually is. The olfactory cortex is located on the medial aspect of the temporal lobe, particularly in the uncus or the piriform lobe. It is also called the Rhinoencephalon or the nose brain.

6 0
2 years ago
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