Hydrochloric acid is secreted by which of the secretory cells of the stomach?A. chief cells
B. parietal cells
C. serous cells
D. mucous neck cells

Answers

Answer 1

Answer:

Hydrochloric acid is secreted by B. parietal cells.

What role do parietal cells play?

Parietal cells are involved in gastric acid secretion and help digest food, absorb minerals, and fight harmful bacteria.

Parietal cells (also known as oxygen cells) are gastric epithelial cells that secrete hydrochloric acid (HCl) and intrinsic factors. These cells are found in the gastric glands in the lining of the fundus and in areas of the body of the stomach.

There are several cell types in the stomach, each with a specific mechanism of action. Chief cells produce pepsinogen, which is converted to pepsin by hydrochloric acid in the stomach. Parietal cells produce hydrochloric acid, which enables this conversion.

Learn more about parietal cells here: brainly.com/question/12539717

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Answer 2

Answer: Parietal cells produce the acid

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What is qualitative and quantitive data?

Answers

qualitative is the quality of something such as your senses; the look, feel, smell or even the taste of an object like its color
quantitative: is number like pounds or amount

Qualitative is "qualities like color and the 5 senses and quantitative is measure and amount.

Where is the ester bonds in lipids?

Answers

The ester bonds in lipids are found where the fatty acids of the lipid join to the glycerol back bone of the lipid.

Lipids are made from two kind of molecules namely Glycerol and Fatty acids. A glycerol molecule is made up of three carbon atoms with an alcohol group attached to each of the carbon atoms and hydrogen atoms occupying the remaining positions.

A fatty acids consist of an acid group at the end of the molecule and a hydrocarbon chain.

In a process called esterification, the acid group of the fatty acid joins to the alcohol group of the glycerol molecule and water is released resulting in the formation of a linkage called an ester bond.

The seed plants became dominant during the late ___ when the climate became ___ a. Cretaceo; drier b. Carbonifero; drier c. Carbonifero; wetter d. Cretaceo; wetter e. Cambrian; wetter

Answers

Answer:

D. (Cretaceous, Wetter)

Explanation:

During the late Cretaceous period, seed plants took over. The cause for this was increased rainfall and moisture, which created the ideal environment for plants to develop and seed plants to reproduce.

In an experiment you, the researcher, remove atp from the system. what would be a likely consequence of the lack of atp on muscle contraction?

Answers

The tropomyosin filament would not be dislodged preventing contraction.

The cross bridges would remain linked and therefore contraction would stop

The cross bridges would break apart due to the presence of calcium ions enabling some contraction

The myosin heads would separate from the actin molecule due to the release of ADP that was previously present.

1.ATP hydrolysis

2.Detachment of myosin head from actin

3.Power stroke

4.Crossbridge formation

According to Mendel’s law of dominance, which statement best describes the result of a cross between parents with genotypes Rr and Rr?

Answers

Answer:

C: All offspring with at least one R will have red flowers.

Explanation:

Mendel's Law of Dominance states that: “In a cross of parents that are pure for contrasting traits, only one form of the trait will appear in the next generation. Offspring that are hybrid for a trait will have only the dominant trait in the phenotype.”

This simply means that if there exists two contrasting traits (I.e Rr), one of the traits will always suppress the other, thereby expressing itself. R suppresses r, thus making the offspring with big R have red flowers. The trait is called a dominating trait and the suppressed is called recessive trait.

Hemophilia is an X-linked recessive condition in which blood does not clot properly. Queen Victoria of England had one allele for hemophilia. Most of her male descendants had the disorder, but few females had it.Why did hemophilia occur more frequently in Queen Victoria’s male descendants?