Answers
The statement most accurately describes bacterial cells is bacterial cells have DNA, but they do not have a nucleus. The correct option is D.
What is a bacterial cell?Bacterial cells are prokaryotic cells and the most primitive cells. They are most simpler cells, and contain no true cell organs and a nucleus. The cell is covered with a cell membrane and a tail-like structure called flagella is present.
The bacteria are microorganisms, so they are very tiny. They are single-celled and DNA is present in these organisms but in a circular form coiled inside the cell.
Thus, the correct option is D. bacterial cells have DNA, but they do not have a nucleus.
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Related Questions
can someone help me with this question
Answers
Answer:
The answer is B
Explanation:
If you can not find the correct answer then goolge it
Why is water important, describe the special properties of water? Provide examples.
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Answer:
The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ends. This is because oxygen is more electronegative than hydrogen. ... The stream of water bends due to the polarity of water molecules.
hope this helped you
What type of virus can only infect plants? A) TGEV B) ToMV C) HIV D) H1N1
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Do you think that the flying fish
is free from predators once
it has left the water?
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Answer: No
Explanation: because there are still air predators ( birds ) which could catch the fish when it is in the air.
Which of the following is not a central theme of blology?
Evolution
The study of chemical reactions
The study of genetics
Cell Theory
Answers
At what part of the growing process is creativity more important? When is consistency more important?
Answers
Answer:
Creativity is most important . It develop in every stage of life. I t could be consistent when it get stable.
Explanation:
We could not count consistency as everything but it is counted for a lot. Creativity is more important at every stage when you grow up . The creative mind play role as a machinery. Consistent means you are not doing anything, you are constant.
As we can say that process is more important. When you are consistently working you are learning something new. So that when you are thinking about something too much then you wont do it. Creativity is rooted in the culture of an individual. Creativity is bounded with culture. It consists the dynamic thought. Creativity can no any exception.
Neurotransmitter release is an example of(1 point) cyclical behavior. autocrine signaling. paracrine signaling. cellular miscommunication.
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Answer:
Neurotransmitter release is an example of paracrine signaling.
It is the release of chemical ligands called neurotransmitters by the presynaptic cell (the cell emitting the signal).
Hope it helps.
An example of ( Neurotransmitter release ) is ; Paracrine signalling ( C )
Neurotransmitter release is stimulated by the presence of nerve impulse arriving in the presynaptic terminal of the nervous system. the released neurotransmitter finds its way into the synaptic gap before binding receptors present at the postsynaptic terminal ( membrane ).
while the release of the neurotransmitter occurs at the active zones of the presynaptic terminal.An example of the these releases includes the paracrine signalling , Dopamine, Glutamate.
Hence we can conclude that an example of Neurotransmitter release is Paracrine signalling.
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do water molecules tend to push away from each other
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Answer:
no the molecules tend not to push away from each other
Answer: No/False
Explanation: Water molecules stick together because of cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be less or more cohesive. Hydrogen bonds cause water to be more attracted to each other, therefore making them stick together.
How cancer is related to an unregulated cell cycle.?
Answers
Answer:Conclusion. Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
how does the water get from the air to the ground
Answers
Answer:
precipitation
Explanation:
Cloud droplets can grow and produce precipitation (including rain, snow, sleet, freezing rain, and hail), which is the primary mechanism for transporting water from the atmosphere back to the Earth's surface.
Students working on plant extracts want to test the hypothesis.
Extracts of Bougainvillea flowers are effective in reducing symptoms of acne in teenage girls. The students are denied permission to conduct such an experiment for ethical reasons. What is the most likely reason for being denied permission?
A lack of proper equipment
B too much of a time commitment
C not enough funding
D humans as test subjects
Answers
Answer:
it is D humans as test subjects
Explanation:
Answer:
D
Explanation:
An increase in the greenhouse effect, increases the production of what gas?
Answers
The green house effect is a natural process that warms the Earth surface.
((Carbon dioxide))
The amino acid with a side-chain pK_a just below neutrality and which plays an important role as a proton donor and acceptor in many enzyme catalyzed reactions is:
Answers
Answer:py[trfgl[rg'pfk[fc,v
Explanation:
klnxasklxnsal
You have consumed many starches which are a complex carbohydrate. Your body needs more glucose right now! What process will break down the starches into glucose?
Answers
Answer:
Digestion
Explanation:
Carbohydrates consist of starch and sugars which further break down into glucose that gives energy to the body.
Digestion of carbohydrates starts in the mouth, following the stomach and ends in the small intestine. The enzyme amylase in the process of digestion breaks down the starches into glucose.
Hence, the correct answer is "Digestion".
What is the largest flower in the world?
Answers
Answer:
Rafflesia arnoldii
Explanation:
The flower with the world's largest bloom is the Rafflesia arnoldii. This rare flower is found in the rainforests of Indonesia. It can grow to be 3 feet across and weigh up to 15 pounds! It is a parasitic plant, with no visible leaves, roots, or stem.
URGENT PLS HELP MEEEE --- How are the Atomic number, Mass number, and Atomic mass diffrent from eachother?
Answers
Answer:
Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes. The mass number is a count of the total number of protons and neutrons in an atom's nucleus.
Explanation:
How would you design an investigation according to the scientific method?
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Answer:
1Identify a research question or problem.
2Form a hypothesis.
3Gather evidence, or data, to test the hypothesis.
4Analyze the evidence.
5Decide whether the evidence supports the hypothesis.
6Draw conclusions.
7Communicate the results.
How many cells make up single gelled organisms?
Answers
Answer:
1 cell
Explanation:
Hence the name, single celled organisms, or unicellular organisms, (the prefix uni means one), single celled organisms only have one cell.
This single cell sustains life for the organism and carries out all the necessary processes.
Usually, these types of organisms are extremely tiny and can't be seen without a microscope. For example, bacteria and amoebas are single celled organisms.
Imagine you have an objective lens that magnifies 100 times your image. If your eye piece magnification is 10x. How much will the total magnification be..? Explain your answer.
Answers
Answer:
1000x
Explanation:
Magnification is process of enlarging the appearance of an object (that is making the object look bigger than it is). The magnification of an object is usually described using a number.
The total magnification is the product of the objective lens power and the eyepiece magnification.
Total magnification = objective lens power × eyepiece magnification
Total magnification = 100x × 10x = 1000x
Suzie Q wants to know how different colors of light effect the growth of plants. She
believes that plants can survive the best in white light. She buys 5 ferns of the same
species, which are all approximately the same age and height. She places one in
white light, one in blue light, one in green light, one in red light and one in the
closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a
day for 2 weeks. After the two weeks, Suzie observes the plants and measurements.
4. What measurements could Suzy make to determine how different colors of light
affect the growth of plants?
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Answer:
Suzie can measure the HEIGHTS of the plants in metres (m) or centimeters (cm)
Explanation:
According to this question, Suzie Q wants to know how different colors of light effect the growth of plants. She sets up the experiment by exposing 5 ferns of the same species to different colors of light (white, blue, green, red).
After ensuring that some variables called constants like same 20 mL of water, same fertilizer (miracle-grow) etc are the same for all ferns, She then measures the growth of each fern placed under different colors of light.
The independent variable in this experiment is the different colors of light while the dependent variable is the growth of the plants. This question is asking for how Suzie could measure the dependent variable (growth). Suzie can measure the growth of the ferns placed under different colors of light by RECORDING THE HEIGHTS OF EACH FERN IN cm or m.
please help on number 6 i got one of the 3 down
Answers
Answer:
Television and conferences.
Explanation:
Television helps scientists communicate over long distances while conferences allow scientist to consult with each other.
Which part of a phospholipid is hydrophilic
Answers
Answer:
nonpolar fatty acid tails
The hydrophobic, or “water-fearing,” part of a phospholipid consists of its long, nonpolar fatty acid tails. The fatty acid tails can easily interact with other nonpolar molecules, but they interact poorly with water.
Answer:
The head
Explanation:
You know how phospholipids always look like they're facing outward? Well, it's because they have hydrophilic (water-loving) heads and hydrophobic (water-fearing) tails. The tails are on the inside of the phospholipid bilayer because they are hydrophobic. The heads, on the other hand, are hydrophilic, meaning that they face the outside of the phospholipid bilayer, towards the water.
Scientists group materials together ________ it is easier to compare and study them that way
Answers
The provided question is incomplete, the correct and complete question is as follows:
Choose the answer that best completes the sentence below.
Scientists group materials together ____________ it is easier to compare and study them that way.
A however
B but
C although
D because
Answer:
The correct answer is - option D because.
Explanation:
Researcher and scientists tries to group material together on their similarities and difference to one another which makes it easier to study and compare various type of materials.
It is the one of major reasons to differentiate materials between groups like liquids state, gases state, plasma state and solid state materials. One can easily see the difference and comparison is very clear on this type of grouping of materials.
Thus, the correct answer is - option D.
The heart is ____________ to the lungs. The knee is ____________ to the hip. The wrist is ____________ to the hand. The mouth is ____________ to the nose. The thorax is ____________ to the abdomen. The thumb is ____________ to the ring finger. The sternum is ____________ to the heart. The skull is ____________ to the scalp. The ears are ____________ to the nose. Dorsal refers to the ____________ of the human body, while ventral refers to the ____________ of the human body.
Answers
Answer:
This question is asking to identify the directional relationship between the following organs. They are explained below.
Explanation:
1. The heart is MEDIAL to the lungs because it is located towards the middle in relation to the right and left lungs.
2. The knee is DISTAL to the hip because it is farther away from the point of attachment of the hip joint.
3. The wrist is PROXIMAL to the hand because the wrist is closest to the point of origin of the hand.
4. The mouth is INFERIOR to the nose because it is lower in direction to the nose.
5. The thorax is SUPERIOR to the abdomen because it is located above the abdomen.
6. The thumb is DISTAL to the ring finger because it is far away from the ring finger.
7. The sternum is ANTERIOR to the heart because it lies in front of the heart
8. The skull is SUPERFICIAL to the scalp because it is close to the body surface.
9. The ears are LATERAL to the nose because it is towards the middle line of the nose
10. Dorsal refers to the BACK of the human body, while ventral refers to the FRONT of the human body.
The heart is medial to the lungs. 1- medial, 2- distal, 3- proximal, 4- Inferior, 5- superior, 6- distal, 7- anterior, 8- superficial, 9- lateral, 10- back, and 11- front.
In the thoracic cavity, the heart is located in the middle of two lungs and before a vertebral column. However, it is located behind the breastbone plate, i.e. the sternum.
The thorax, also known as the chest, is the upper part of the trunk between the neck and the abdomen. The thorax is made up of several parts: the thoracic wall and several cavities.
The sternum is a bone located in the anterior middle line of the thoracic region of the body. It forms the base of the rib cage. The sternum is the anterior-most part of the body.
The sternum protects the thoracic tissues from injury. It also serves as the bony attachment point for various muscles.
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Enzymes are proteins that have a three-dimensional shape that is specific to a particular substrate. Environmental conditions can change the shape of the protein. What is the most likely result if the shape of the enzyme changes?
Answers
Answer:
The enzyme will no longer be able to catalyze the reaction with the substrate.
Explanation:
The enzyme will no longer be able to catalyze the reaction with the substrate if the shape of enzyme changes. The correct option is B.
What is enzyme-substrate reaction?A substrate needs to enter the enzyme's active site. This results in the formation of the enzyme-substrate complex.
The reaction then accomplished, transforming the substrate into products and forming an enzyme products complex. The products after which end up leaving the enzyme's active site.
When an enzyme is bonded to its substrate, an enzyme-substrate complex is formed.
Enzymes encourage chemical reactions by bringing substrates together in the best possible orientation, thereby providing an ideal chemical environment for the reaction to take place.
Enzymes change their shape in order to bind to their substrates. The process by which enzymes change shape is known as induced fit.
Since enzymes in the given scenario is changing their conformation, it will lead to non binding of the substrate.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
A The products made from the enzyme and the substrate will be changed B The enzyme will no longer be able to catalyze the reaction with the substrate С The substrate will change its shape to match the enzyme D The enzyme will be able to bind to more diverse substrates than beforeWhich area of Earth Science includes the study of ancient organisms?
Answers
Answer:
paleontology
hope helps u
have a nice day
Which part of the compound light microscope is used to change magnification?
Part A
Part C
Part E
Part F
Answers
Answer: Part C
That’s correct because it contains the lenses magnification.
Answer:
C
Explanation:
What is not classified as an organism
Answers
All organisms can be classified, Even organisms that are extinct can be classified.
Answer:
tree
Explanation:
because it may be a plant but its still not bond with plants
Which phase occurs directly after G1?
A. S phase
B. M phase
C. Cytokinesis
D. G2
Answers
Answer:
S phase
Explanation:
When the cell has reached an appropriate size and is in a supportive environment for DNA replication,it will enter the next phase called S phase. S phase,
Answer:
S phase
Explanation:
After learning about Addie, think about infections that you or family members had. Have you or a family member ever taken antibiotics for an infection/skin infection/rash/ear infection/chest cold? What happened?
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Answer:
Yes, I have taken antibiotics for an infection or infectious disease.
Antibiotics are specialized drugs to generate bacteriostatic or bactericidal effects in BACTERIA.
These, like all drugs, have adverse effects that may be worse or less serious according to the potency of the drug.
Each antibiotic has different spectra of bacteria, that is, they can affect more or less bacterial species.
Explanation:
That antibiotics are bacteriostatic implies that they stop bacterial metabolism, and that they are bactericidal indicate that they eliminate or kill the bacteria, each antibiotic is special for each bacterium.
In infectious diseases or infections it is important to know what bacteria we are facing, doing a culture to detect the species and also an antibiogram that warns us to which antibiotic this bacteria is resistant, if it is.
In this way, antibiotic therapy will be effective since the bacteria will be within the spectrum of the chosen drug and will not present resistance, these diagnostic methods are necessary because there are bacteria with beta-lactamases as a resistance factor, that is, resistant to beta lactams, it is for That is why an inhibitor of these enzymes was launched so that these bacteria cannot destroy the drug and have efficacy at the end of the day, this beta-tetramase inhibitor is clavulanic acid, which together with penicillin were the great discovery of pharmacology.