Pls help me answer this

Using a ruler to measure the length of a stick is an example of extending the sense of sight by using an instrument

• Humans possess five major sense organs namely: tongue, eyes, nose, skin and ear. Each of these senses serve different purposes, however, scientists do not entirely use them for scientific measurements.

• Scientists make use of instruments to extend their senses, which they use for perception only.

• For example, a ruler is used to measure the length of a stick in order to extend our knowledge of the stick, which was gained by sighting the object.

• Therefore, using a ruler to measure the length of a stick is an example of extending the sense of sight by using an instrument.

Learn more: brainly.com/question/2304838?referrer=searchResults

Final answer:

Using a ruler to measure the length of a stick extends the sense of sight by using an instrument. The individual making the measurement must estimate the final value, introducing some uncertainty. The ruler’s precision is indicated by the number of significant figures it can report.

Explanation:

Using a ruler to measure the length of a stick is an example of C) extending the sense of sight by using an instrument. This falls under the category of indirect measurements where an instrument, in this case a ruler, is used to enhance our basic senses. It is important to note that the person performing the measurement must use their judgment to estimate the final value based on what the instrument shows, considering its degree of precision.

For instance, if the ruler shows the stick is between 36mm and 37mm in length, the individual has to estimate this final digit, which introduces a level of uncertainty. This level of uncertainty also reflects the ruler's precision, which is indicated by the number of significant figures it can report. The more precise a measuring tool is, the greater the number of significant figures it can report which in turn results in greater accuracy.

Learn more about Indirect Measurement here:

brainly.com/question/33058571

#SPJ3

Answer:

Mixed inhibition refers to the combination of two reversible types of enzyme inhibition, competitive inhibition and non-competitive inhibition. The term mixed is used when the inhibitor can bind both the free enzyme and the enzyme-substrate complex. In mixed inhibition the inhibitor is in a different place from the active site where the substrate is found.

Mathematically, mixed inhibition occurs when both alpha and alpha-prime factors (introduced in the Michaelis-Menten equation representing competitive and non-competitive inhibition respectively) are present (they are larger than unity).

In a special case of mixed inhibition, the alpha and alpha-prime factors are the same, then non-competitive inhibition occurs.

With this type of inhibition Km depends on the affinity of the inhibitor to join E or ES and Vmax decreases.

Enzymatic inhibitors are molecules that bind enzymes and decrease their activity. Since blocking an enzyme can kill a pathogen or correct a metabolic imbalance, many medications act as enzyme inhibitors. They are also used as herbicides and pesticides. However, not all molecules that bind to enzymes are inhibitors; Enzymatic activators bind to enzymes and increase their activity.

The binding of an inhibitor can prevent the substrate from entering the active site of the enzyme and / or hinder the enzyme from catalyzing its corresponding reaction. The inhibitor binding may be reversible or irreversible. Normally, irreversible inhibitors react with the enzyme covalently and modify their chemical structure to the level of essential residues necessary for enzymatic activity. In contrast, reversible inhibitors bind to the enzyme in a non-covalent manner, resulting in different types of inhibitions, determined whether the inhibitor binds to the enzyme, the enzyme-substrate complex or both.

Many medications are enzymatic inhibitors, so their discovery and improvement is an active field of research in biochemistry and pharmacology. The validity of a medicinal enzyme inhibitor is usually determined by its specificity (its inability to bind to other proteins) and its potency (its dissociation constant, which indicates the concentration necessary to inhibit an enzyme). A high specificity and potency ensures that the medication will have few side effects and therefore a low toxicity.

Answer:

Option B) Mammalian Skin Cell: Central Vacuole  is incorrect.

Explanation:

Mammalia Skill cell have sweat glands that secrete sweat (composed of water, oil and salts) which help humans as protective layer against bacteria and pathogens.

Answer:

chemical change changes the identity of a substance, while a physical change can just be observed. Some signs that a chemical change has occurred are, temperature change, forming bubbles, color change, new substance forming, there are more, but those are just some of which i now

Explanation:

hope this helped!!!<3

Answer:

Explanation:

The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. ... After ice melts into liquid water, you can refreeze it into solid ice if the temperature drops. Freezing and melting are physical changes.

Chloroplast is the site for photosynthesis in plants. Thus, option A is correct.

What are chloroplasts?

Chloroplasts are the cell organelles present in the plants. Chloroplasts are one such type of plastids.

Chloroplasts are green in colour. They contain a green coloured pigment called chlorophyll which traps the solar energy.

The solarenergy is converted into chemicalenergy by a process called photosynthesis. The organic molecules so produced are the energyrich compounds.

Chloroplasts are chiefly found in the mesophyll region of the leaves.

Chloroplast consists of grana and stroma regions. The grana contain disc shaped coin like structures called thylakoids. The matrix of chloroplasts constitutes stroma region.

Various enzymes, DNA, ribosomes etc are found within the chloroplasts. Hence, they are also referred as 'cellwithinthecell'.

Chloroplasts have unique feature of self-replication. Chloroplasts are similar in function to mitochondria in animal cells.

Therefore, chloroplasts are important plant structures for photosynthesis.

Learn more about chloroplasts, here:

brainly.com/question/2516251

#SPJ2

In plants, photosynthesis takes place in chloroplasts. Option A is correct.

What is Chloroplast ?

Plant, algae, and certain protist cells have membrane-bound organelles called chloroplasts.

So, They are in charge of the process known as photosynthesis, which turns light energy into chemical energy in the form of glucose in green plants and some other animals. Life on Earth is supported by this essential mechanism of energy conversion.

Therefore, In plants, photosynthesis takes place in chloroplasts.

Learn more about Chloroplast here : brainly.com/question/1741612

#SPJ3

DNA, the RNA polymerase core enzyme, and the subunit are the first transcriptional components. mRNA, small and large ribosomal subunits, initiation and elongation factors, as well as tRNA, are all parts of the translation process. Thus, option D is correct.

What are the factor affecting the process of transcription?

Proteins called transcription factors are involved in the process of turning DNA into RNA, or transcribed DNA.

A large variety of proteins—aside from RNA polymerase—called transcription factors start and control how genes are transcribed.

A gene's transcription is boosted by transcription factors that serve as activators. Reducers lessen transcribing.

An enhancer or silencer is a collection of transcription factor binding sites that can turn a gene on or off in a particular region of the body.

Therefore, Transcription is the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA.

Learn more about transcription here:

brainly.com/question/22559209

#SPJ2

Answer:

I think it is c have a good day