Biology High School

Which of the following conditions would cause the plasmolysis of a bacterial cell?

Which Of The Following Conditions Would Cause The Plasmolysis Of A Bacterial Cell?

Answers

Answer 1
When salt or sugar is added water moves from inside the cells to the outside solutes by osmosis, causing a partial dehydration of the cell, known as plasmolysis, that interferes with microorganism multiplication.

Related Questions

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How does the body use atoms such as carbon, hydrogen, and oxygen in metabolism?

Answers

Answer:

C. Atoms can be used over and over in different molecules

Explanation:

When different compounds enter the stomach, they undergo a series of chemical reactions and are broken down. They are then used for new metabolic processes. For example, if glucose was broken down into pure Carbons, they could then react and form other molecules as needed by the body.

1. Radiation left over from big bang is called
(10 Points)
A. ultraviolet radiation
B. dark energy
C. cosmic background radiation
O D. gamma radiation
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Answers

C: cosmic background radiation.
C- Cosmic Background Radiation
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Answers

Answer:

B and E

Explanation:

What 3 things do plants need to make food?

Answers

Answer: carbon dioxide, water and sunlight

Explanation: you’re welcome

Answer:

water, carbon dioxide, energy

A human is classified in domain _____ and kingdom _____.

Answers

A human is classified in domain Eukarya and kingdom animalia.

Which structure is the site of the synthesis of proteins destined for export from the cell?.

Answers

Rough endoplasmic reticulum is the site of the synthesis of proteins destined for export from the cell.

Answer:

hello there

Explanation:

rough endoplasmic reticulum

Proteins that will be exported, or secreted, from the cell, are generally produced in the rough endoplasmic reticulum (rough ER).

What is responsible for the increased stability of dna compared to rna?.

Answers

Answer:

What is responsible for the increased stability of DNA compared to RNA? DNA is a more stable molecule than RNA because it lacks a hydroxyl group on the 2' carbon and is therefore more resistant to cleavage, and because the two sugar-phosphate backbones are held together by many hydrogen bonds between nitrogenous bases

Explanation:

What is the experimental basis for concluding that DNA replicates semiconservatively in both bacteria and eukaryotes

Answers

In two experiments, one with a prokaryote and one with a eukaryote, used density and radioisotope labeling to conclude that the daughter DNA are each composed of one parental strand and one new dna strand.

The optic nerve carries impulses to the thalamus and, ultimately, to the ________ of the occipital lobes.

Answers

The answer is visual cortex

Dna replication results in two dna molecules. What is true about each of the two new dna molecules?.

Answers

Answer:

Once DNA replication is complete, there are two new DNA molecules; one molecule has both of the original strands and one molecule has two new strands of DNA.

Explanation:

What is the difference in the function of the proteins and the carbohydrates attached to a cell.

Answers

Answer:

The difference is

Explanation:

Carbohydrates help fuel your body. While protein's primary role is structural, carbohydrates primarily serve as an energy source.

What are organic compounds

Answers

Answer

What are organic compounds

An Organic compound is any member of a large class of gaseous, liquid, or Solid chemical compounds whose molecules contain carbon.

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Which structure protects bacteria from being phagocytized?.

Answers

Answer:

D. Capsule.

However, I think this is a multiple choice question, so let me answer it that way.

a. slime layer

b. fimbriae

c. cell membrane

d. capsule

e. All of the choices are correct.

Capsule is the structure that acts like an invisible cloak and helps the bacteria from phagocytosis.

Characteristics of capsule:

The characteristics of capsule are as follows:

This capsule can be found either on gram positive or gram negative bacteria.
Capsule is 0.2µm thick viscous layer.
Capsule is present outside to the cell wall of bacteria.
The capsule is different from the cell wall of bacteria.
It is usually composed of polysaccharide but sometimes it is composed of glycoproteins.
This capsule can’t be washed by using alcohol or other chemicals.
This capsule can be stain separately to visualize the bacteria.
This capsule can be loosely attach or tightly attach to the cell wall.
Bacteria that have capsule outer to the cell wall is called as encapsulated bacteria.
Composition of capsule:

The capsule composition is different from bacteria to bacteria. Capsule have 2% polysaccharide and 98% water. Mostly, capsule is composed of polysaccharide. Polysaccharides are the long chains of carbohydrate. Monomeric subunit is combined to form long chains of carbohydrate. The glycosidic linkages are responsible for the binding of different monomeric units. On hydrolysis, they give the monomeric components that constitute the polysaccharide unit.

Some bacterial capsule is composed of glycoproteins. Glycoproteins are the structure in which the amino acids of proteins are attached with the carbohydrate group. Carbohydrate groups attach with the chain of polypeptides by covalently bonding. These oligosaccharides attach with the peptide chains during translation and post-translation modification

mRNA: GCU ACG GAG CUU CGG AGC UAG
What is the sequence of anticodons for this sequence of
mRNA

Answers

The anticodon is complimentary to the mRNA and identical to DNA but instead of thymine, it has uracil.

mRNA: GCU ACG GAG CUU CGG AGC UAG

tRNA: CGA UGC CUC GAA GCC UCG AUC

Are all of the cells flashing green the same way? if not, what might explain any variation observed. Give two possibilities.

Answers

Cells do not blink in the same way because the amount of proteins between cells is unequal and the stage of each protein can be different between cells.

What is a protein?They are molecules present in living beings.They are essential molecules for the maintenance of the organism.They are macromolecules made up of amino acids.

Proteins are subject to the emission of green light when certain products are applied to cells. However, even similar cells from the same organism will not emit this light equally due to the difference between the amount and stages of the protein in each cell.

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Answers

Answer:

I'm not quit sure what that is

Explanation:

What is the overall net gain of ATP in aerobic respiration per one molecule of glucose? between 0-10 between 10-20 between 30-40 between 40-50.

Answers

Answer:

C. 30 -40

Explanation:

90% edge

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A key point in Darwin’s explanation of evolution is that

Answers

Answer:

The four key points of Darwin's Theory of Evolution are: individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.

Explanation:

Why do we have to start with the lowest magnification to examine a new slide?.

Answers

Why do we have to start with the lowest magnification to examine a new slide? It is easier to focus on the specimen.

Answer:

Why do we have to start with the lowest magnification to examine a new slide? It is easier to focus on the specimen.

Explanation:

Which is largest or most broad category in taxonomy?
A. Order
B. Kingdom
C. Genus
D. Domain

Answers

Answer:

Option B

The kingdom is the largest or most broad category in taxonony

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Answer:

search up the question and you will find that the answer is domain

Explanation:

What skills and education do careers in agronomy require?

Answers

To be an agronomist, you should have an interest in science and a bachelor's degree. In college take agriculture, biology, chemistry, mathematics, physics, and statistics courses, as well as broad based general education courses, including English and speech. Hope this helps your question.

The organelle which controls cellular activity is the.

Answers

the Nucleus

Explanation:

Known as the cell's “command center,” the nucleus is a large organelle that stores the cell's DNA (deoxyribonucleic acid). The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information.

What organ of the body is the first to receive the nutrients after they pass through the gi tract, and then prepares those nutrients for use in the body?.

Answers

Answer: The small intestine

Explanation:the small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use.

It should be noted that the organ of the body is the first to receive the nutrients after they pass through the gi tract,  is small intestine.

What is small intestine?

small intestine  can be regarded as an organ in the gastrointestinal tract and its this organ that enable absorption of nutrients from food takes place. and then prepares those nutrients for use in the body.

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1) Scientists can now create crops that are pest resistant, drought resistant, faster growing and more nutritious. This is called



Group of answer choices

Genetically altered DNA

Good farming practices

Genetically modified organisms



2) Which of these will likely increase as the human population increases?

Group of answer choices

Drinkable water

biodiversity

Space per person

Species extinctions



3) Scientists who studied wildlife in and around the Great Lakes area found their results to be disturbing. A large number of birds were born with partially developed eyes, crossed bills and webbed feet. What can you infer is the reason?
Group of answer choices

Deforestation.

Contaminated sediments infiltrated the water.

Other birds migrated to the area and were crossbred.

An invasive plant species was introduced into the area.

Answers

Answer:

1. Genetically modified organisms 2. Species extinctions 3. Contaminated sediments infiltrated the water

Explanation:

I hope this helps you and if it doesn't, I'm sorry this is the first question I've ever answered.

With the first answer I would say it is genetically altered DNA or genetically modified organisms

What do these terms hydrophilic and hydrophobic mean and how do they relate to the structure of a cell membrane?.

Answers

Answer:

hydrophilic- attracts water

hydrophobic- repels water

Explanation:

A cell membrane is a bilayer of phospholipids. They have a hydrophilic phosphate heads, and hydrophobic fatty acid tails.

so in the cell membrane they would arrange like this:

The heads are point outwards as they attract water, and tails inwards as they repel water.

Hope this helps!

12. Scientists have observed that the same gene may produce several different mRNA molecules. How could the researcher's model show this variety of mRNA molecules? Identify the stage that introduces this variety.​

Answers

Answer:

The stage of introns being removed then exons splicing together can create a variety of tRNA molecules. It's like recycling

mRNA is the messenger RNA associated with the transfer of information and is also associated with protein synthesis. In the given scenario, the stages of introns are removed then exon splicing together can create tRNA variety.

What are introns and exons?

Introns and exons are the sequences of nucleotides in the genes.

Exons are coding regions of DNA sequences corresponding to protein, while introns are the RNA or DNA found between the exons.

Scientists have observed that the same gene may produce several different mRNA molecules stages of introns are removed then exon splicing together can create tRNA variety to show the variety of mRNA molecules.

Thus, it is the stage that introduces the mRNA molecule variety.

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A car travels 300 km in 6 hours. What's the average speed of the car? O 50 km/h O 65 km/h O 45 km/h O 75 km/h​

Answers

Answer:

50 km/h

Explanation:

The average speed of the car is essentially the same thing as the unit rate.

Here a car goes 300 km for every 6 hours. To find the unit rate, we must find how many kilometers it goes per hour.
To do so, we can divide 300 by 6 to get a total of 50km/h.

3. Which statement would be true of a membrane-bound protein that works in conjunction with a sodium–potassium pump during secondary active transport?

It will block a small molecule from moving across the cell membrane in response to an increase in concentration of an ion in the external environment.
It will be able to transport an ion in both directions across the cell membrane and a small molecule in one direction.
Its conformation will change when both an ion and a small molecule bind to it.
It will move a small molecule across the cell membrane in response to a build-up in concentration of the molecule in the external environment.

Answers

Answer:

i

Explanation:

Acceptable Macronutrient Distribution Ranges (AMDRs) recommend that ________ should provide more calories than either proteins or fats.

Answers

Answer ⚘

❝ Acceptable Macronutrient Distribution Ranges (AMDRs) recommend that Carbohydrates should provide more calories than either proteins or fats. ❞

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Match these items.

1. Synura
Rhizopoda
2. Volvox
Phaeophyta
3. Giardia lamblia
Apicomplexa
4. Saccharomyces cerevisiae
Chlorophyta
5. Amoeba proteus
Chrysophyta
6. Plasmodium ovale
Zoomastigophora
7. Sargussum
Basidiomycota
8. Agaricus bisporis
Ascomycota

Answers

Based on taxonomic classification, the given organisms are classified as follows:

1. Synura ----> Rhizopoda 2. Volvox ---> Chlorophyta 3. Giardia lamblia ----> Basidiomycota 4. Saccharomyces cerevisiae ---> Apicomplexa5. Amoeba proteus ---> Zoomastigophora 6. Plasmodium ovale---> Chrysophyta7. Sargussum ---> Ascomycota8. Agaricus bisporis ----> Phaeophyta

What are the correct classification of the given organisms?

Taxonomic classification is the organisation of organisms based on similarities in their structure, function and biochemical composition.

Organisms are classified into Kingdoms, Phylum/Division, Class, Order, Family, Genus and species.

Based on taxonomic classification, the given organisms are classified as follows:

1. Synura ----> Rhizopoda2. Volvox ---> Chlorophyta 3. Giardia lamblia ----> Basidiomycota 4. Saccharomyces cerevisiae ---> Apicomplexa5. Amoeba proteus ---> Zoomastigophora 6. Plasmodium ovale---> Chrysophyta7. Sargussum ---> Ascomycota8. Agaricus bisporis ----> Phaeophyta

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