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grigory [225]
3 years ago
14

Reactions that break apart large molecules are involved in which type of digestion?

Biology
1 answer:
antiseptic1488 [7]3 years ago
4 0
They are involved in a chemical digestion. 
Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. It begins in the mouth when food mixes with saliva which contains enzyme salivary amylase that breaks down carbohydrates. It also occurs in the stomach where HCl and pepsin forms chyme and small intestine especially in the duodenum.
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Imagine you are performing a cross involving seed color in garden pea plants. What F1 offspring would you expect if you cross tr
ehidna [41]

Answer:

B. 100 percent yellow seeds

Explanation:

When a gene has two alleles and one allele is dominant over the other, the dominant allele is expressed in the heterozygous state and the expression of the recessive allele is masked. According to the given information, the allele for yellow seed color is dominant over the allele for the green seed color.

Let's assume that the allele "Y" gives yellow color to the seeds while the allele "y" is responsible for green seed color. A cross between two pure breeding yellow seeded (YY) and green seeded (yy) plants would produce all the yellow seeded progeny with genotype "Yy".

YY (Yellow) x yy (green) = Yy (yellow)  

7 0
3 years ago
What is the main difference between renewable and nonrenewable resources
Julli [10]
<span>The main difference of renewable and non-renewable resources lies in the capacity of the environment to replenish itself. Renewable resources are resources that can be easily replenished by the environment over a short period of time, while non-renewable resources take more time. <span>

Examples of renewable resources are solar energy, harnessing the sun's power that shines day to day. Wind energy that exists naturally is also a renewable source. Geothermal energy, heat coming from the center of the Earth, and Biofuels, fuels made from living organisms, are all renewable energy. 

<span>Non-renewable energy resources are the fuels we use in our cars, minerals from the soil, coal, among others are supplies that also come from Earth. These are all materials that might take a long time (probably millions of years) to be fully restored. </span>


</span></span>
4 0
3 years ago
Read 2 more answers
Regulatory proteins bind to _____. the operator the lactose-utilization genes the regulatory gene RNA polymerase transcription f
jarptica [38.1K]

Answer:

Regulatory gene

Explanation:

Transcription is one of the major processes that occurs during gene expression. It is the transfer of the genetic instructions in DNA to mRNA. A strand of mRNA is made using complementary base pairs.

However, there is need for gene expression to be regulated.

Gene regulation refers to the mechanism that acts to induce or repress the expression of a gene. These include structural & chemical changes to the genetic material, binding of proteins to specific DNA elements to regulate transcription. These proteins that influences transcription by binding to specific nucleotide sequences (DNA segments/gene) are referred to as REGULATORY PROTEINS and those involved in regulating transcription of genes are called TRANSCRIPTION FACTORS.

Regulatory proteins controls the rate and manner of gene expression by binding to specific genes, thus, making it easy or hard for RNA polymerase (enzyme that attaches to DNA to synthesize mRNA molecule) to bind to the promoter of that gene.

Transcription factors (regulatory proteins) that promote gene transcription are called ACTIVATORS while those that decrease are called REPRESSORS.

5 0
3 years ago
At the completion of mitosis, the nucleus of a human somatic cell has ___ chromosomes.
Natasha_Volkova [10]
46 chromosomes. Each consisting of one chromatid
4 0
3 years ago
Can someone help me please?
lianna [129]
The Answer is B, or the 2nd one since it starts from one cell and splits into 2 meaning it's under going mitosis. 
8 0
3 years ago
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