How can you determine if a bacterium is being killed by an antibiotic or if its growth is simply being inhibited

Answers

Answer 1

Answer:

"You need to take a swab from the zone of inhibition and use it to inoculate a new plate without the antibiotic. If the organism grows then it was simply held in a static state by the antibiotic."

Explanation:


Related Questions

Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles.

Explain the energy transformation in this process.

A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.

Answers

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Chemical energy from broken bonds is transformed into mechanical energy for muscles. The correct option is A.

What is chemical energy?

Chemical energy is the energy held in atom as well as molecule bonding.

Chemical energy can be located in things like batteries, biomass, oil, natural gas, and coal.

For instance, when humans burn wood in a fireplace or gasoline in a vehicle's engine, chemical energy is transformed into thermal energy.

Chemical energy, such as that held in the bonds of atoms and molecules, is stored energy. As a result of a chemical process, this energy is released.

Many chemical bonds throughout the body break during respiration, releasing energy. The movement of muscles is one activity that uses this energy.

Broken bonds' chemical energy is converted into mechanical energy for muscles.

Thus, the correct option is A.

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Which scientist was the first to use the term cell to describe what he saw under the microscope?

Answers

Answer:

Scientist Robert Hooke

why is it necessary to have 6co2 entering the chloroplast

Answers

the photosynthesis reaction must be balanced. six carbons are needed to make glucose, so six CO molecules are needed.

Chromosome number is reduced from 2n to 1n. this occurs in ___________
anaphase l
telophase l
anaphase ll
telophase ll

Answers

Answer:

I'm not completely sure but I think anaphase 2

Is the cholesterol molecule mostly polar or mostly nonpolar?

Answers

Answer:

Most of the cholesterol molecule in non-polar and therefore associations with the non-polar fatty acid tails of the phospholipids. However, the hydroxyl group (-OH) on cholesterol carries a negative charge and therefore associates with the polar environment of water either inside the cell or outside.

Explanation:

Mark me brainly please

Answer:

Cholesterol is very non-polar, except for the hydroxyl group attached to the first ring.

Explanation:

where are unmyelinated nerve fibers surrounded by schwann cells?

Answers

Schwann cells without myelination are seen in the peripheral nervous system (PNS).

Myelinating Schwann cells and non-myelinating Schwann cells are the two different kinds of Schwann cells. One kind of neuroglial cell is the Schwann cell. Nerves are helped and supported by neuroglial cells. Nerve impulses can be sent at speeds of about 270 miles per hour thanks to the ability of Schwann cells to speed up the process.The myelinating Schwann cell coils around nerve axons with large diameters. The myelinating Schwann cell creates the neurilemma, a lipid base membrane, as it loops itself around the nerve fiber. The myelin sheath develops from the neurilemma.However, unlike a hotdog bun that encircles a hotdog, the non-myelinating Schwann cell does not form myelin; instead, it permits thin nerve fibers to rest along, within, and on top of the non-myelinating Schwann cell. Non-myelinated nerves often have slower nerve transmission.

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what is the term for a group of different species in a given area?

Answers

Answer:

biocoenosis, biotic community, biological community, ecological community, or life assemblage

Explanation:

A site at the 5' end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an

Answers

Answer:

A site at the 5′ end of a gene where RNA polymerase attaches to initiate transcription and control of gene expression occurs is called a/an

Explanation:

4. Describe the interrelationship between cell, tissue and organ of human body. ​

Answers

Answer and Explanation:

Cell: Molecules get grouped in alive cellular units that have auto replication capabilities. It is the smallest structural unit capable of functioning by itself. A cell is capable of communicating with other cells, their membranes delimitate them and protect them, constituting a selectively permeable barrier, receives signals from the exterior and responds in different ways to the different signals. There are different cells with different sizes, shapes, and forms.        

Tissue: A tissue is the organization and association of the same type of cells. Each tissue performs different functions. These tissues can be epithelial, adipose, nervous, muscular, and etcetera.

Organ: An organ is composed of different tissues that work together in a more complex function. Tissues form structures such as the heart, lung, kidney, brain, and etcetera. Each organ has its function.                                                                        

Organ systems: When different organs get associated and work together, they become a system. Working together in a stable way organs maintain homeostasis.

Lymph is __________. excess tissue fluid that has escaped from arteries excess tissue fluid that has leaked out of capillaries excess blood that has escaped from veins

Answers

Answer:

Excess tissues fluid that has leaked out of capillaries.

how is glaciers melting in alaska a problem for humans

Answers

Answer:

The water will rise

Explanation:

We can drown

what does the word gastropoda mean​

Answers

Answer:

a large class of mollusks which includes snails, slugs, whelks, and all terrestrial kinds.

Explanation:

hope that helps :D!

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Is light an essential condition for germination ?
why or why not ?

gamsahamnida ​

Answers

Answer:

No

Explanation:

Conditions necessary for germination are :

Temperature/Warmth

Oxygen/Air

Water/Moisture

how long does it take for a body to decompose to a skeleton

Answers

Answer:

In a temperate climate, it usually requires three weeks to several years for a body to completely decompose into a skeleton, depending on factors such as temperature, humidity, presence of insects, and submergence in a substrate such as water.

Explanation:

what is the main factor that separates the biomes?

Answers

Answer:

Terrestrial biomes are distinguished primarily by their predominant vegetation, and are mainly determined by temperature and rainfall. Differences in temperature or precipitation determine the types of plants that grow in a given area .

The main factor that separates the biomes by predominant vegetation, temperature and rainfall.

What is biomes?

Biomass is plant-based material used as fuel to produce heat or electricity. Examples are wood and wood residues, energy crops

Terrestrial biomes are distinguished primarily by their predominant vegetation, and are mainly determined by temperature and rainfall.

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A(n) is a protein and/or sugar molecule on the surface of a cell that allows the immune system to identify whether or not that cell poses a threat.

Answers

Answer:

Antigen

Explanation:

The process of using sunlight to convert carbon dioxide and water into sugar and oxygen is called?

Answers

answer: Photosynthesis
hope this helps
the answer is Photosynthesis

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7A - Indicate the complementary strand of the DNA molecule shown here.

5’ A A T C G C T G C C T 3’

7B - If the original DNA molecule shown in question 7A were used in the process of transportation to produce mRNA, then what would be the sequence of the mRNA molecule?

(please answer both questions)

Answers

Answer:

A A T C G C T G C C T  

T T A G C G A C G G A

U U A G C G A C G C A

Explanation:

Adenine (A) and Thymine (T) pair together. Cytosine (C) and Guanine (G) pair together.

With mRNA, the RNA doesn't have Thymine, so it replaces it with Uracil (U).

what is the role of vegetation in slope stability?

Answers

Vegetation helps stabilize steep forested slopes chiefly by reinforcing the soil through tree roots and by changing the soil water regime.

the specialized organelles that carry out photosynthesis are called

Answers

Answer:

Chloroplasts

Explanation:

BRAINLIEST
the diagram shows two cells found in human blood.
a. the actual diagram of
red blood cell is 0.007mm ( 7 um) in diameter.
Calculate the magnification of the diagram. show your working.

side note: I measured it in a ruler and it's 2.3 cm = 23 mm (drawn to scale) ​

Answers

a)

Actual diameter = 0.007 mm

Diameter of scaled diagram = 2.3 cm = 23 mm

Formula to use:

Magnification = scaled dimension/actual dimension

Magnification = 23/0.007

Magnification = 3285.714... → x3286

b)

Red blood cells (RBCs), otherwise known as erythrocytes, don't have nuclei and organelles such as mitochondria, are smaller than WBCs and have a biconcave disc shape ideal for purpose

c)

i.

RBCs transport oxygen inhaled into the lungs around the body to all tissues and organs

ii.

RBCs are void of organelles so they are maximally packed with haemoglobin to bind and transport oxygen;

The biconcave disc shape is ideal for flowing through the blood vessels, particularly the capillaries, optimising them for transporting oxygen;

The small size also helps in being able to circulate the vasculature effectively and successfully

a)Actual diameter = 0.007 mm

Diameter of scaled diagram = 2.3 cm = 23 mm

Formula to use:

Magnification = scaled dimension/actual dimension

Magnification = 23/0.007

Magnification = 3285.714... → x3286

b)Red blood cells (RBCs), otherwise known as erythrocytes, don't have nuclei and organelles such as mitochondria, are smaller than WBCs and have a biconcave disc shape ideal for the purpose.

c)i.RBCs transport oxygen inhaled into the lungs around the body to all tissues and organs

ii.RBCs are void of organelles so they are maximally packed with haemoglobin to bind and transport oxygen;

What are RBCs?

The biconcave disc shape is ideal for flowing through the blood vessels, particularly the capillaries, optimising them for transporting oxygen;The small size also helps in being able to circulate the vasculature effectively and successfully.

Thus, these are the answer.

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which population should display the highest growth rate?

Answers

Yes based off of the questions I could say China

pls help science kills me

Answers

Answer:

false

Explanation:

its the other way round!

Answer:

i am 90% sure its false

Explanation:

proteins for sure helps with strength and elasticity, id k what minerals do.

Which organism carries out autotrophic nutrition

Answers

Answer:

Autotrophs is the answer

Example : plants

Plants and some bacteria (e.g., cyanobacteria) carry out autotrophic nutrition, synthesizing their own organic molecules using light or inorganic substances.

Organisms that carry out autotrophic nutrition are capable of producing their own organic compounds and energy sources using inorganic substances. One example of an organism that performs autotrophic nutrition is plants. Plants possess specialized structures called chloroplasts that contain chlorophyll, a pigment responsible for capturing sunlight energy.

Through the process of photosynthesis, plants convert carbon dioxide and water into glucose, a form of stored energy. This energy is then used by the plant for growth, development, and other metabolic processes. Additionally, some bacteria and protists are also capable of autotrophic nutrition. These organisms utilize different mechanisms such as chemosynthesis or photosynthesis to synthesize their own organic compounds and derive energy from non-organic sources, such as inorganic chemicals or light, respectively.

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Draw a line to connect the following terms to their definitions.

Answers

Answer:

If I am not wrong 1 and A

2 and C

3 and B

Answer:

I do not know this question I

Explanation:

Hahahh and I will be unable to attend the meeting on the 27th July 4th and I will not be able to attend the meeting on the 27th of this month so that I can make the necessary changes to the meeting on the 27th of this month and will have to wait until I get back to the office tomorrow and

This is a question on the circulatory system. I don't understand how the pathway that the blood goes through in the heart makes it oxygenated. Could someone pleas explain to me what each part does and how when it goes to the lungs it gets oxygenated?

Answers

Answer:

deoxygenated blood is pumped back to the heart with the superior vena cava and inferior vena cava. Blood is then in the right atrium then it is pushed to the right ventricle in the heart. it is the pumped through the pulmonary artery to the lungs(the pulmonary artery is the only artery that carries deoxygenated blood). In the lungs blood is pumped to the cappilleries in the bronchus where oxygen in the air is passed through to the blood with heamoglobin and thus now the blood is oxygenated. The blood is the pumped brought back to the heart with the pulmonary vein(the pulmonary vein is the only vein to carry oxygenated blood).It flows into the left atrium where it is then pushed down into the left ventricle and is then pumped up through the aorta to the whole body.

Explanation:

I hope this explains what you asked.

What percentage of body water loss can impact athletic performance?

Answers

Exercise performance begins to decline once water loss exceeds 2% of an individual's body mass.

By keeping food cold, the growth of microorganisms is:

Answers

Answer:

they are called growth because you are training them

The force the Earth exerts on the sun is equal in magnitude to the
force the sun exerts on the Earth.
O True
o False

Answers

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The given statement is true, because according to Newton's third law of motion ~ " Every action has an equal and opposite reaction " .

The period during which an excitable membrane cannot respond to further stimulation is the ________ period.

Answers

Answer:

refractory period

Explanation:

refractory period is a period of time during which an organ or cell is incapable of repeating a particular action

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