All cells share the following common components except

Answers

Answer 1

Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

Figure 1. This figure shows the generalized structure of a prokaryotic cell.

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid (Figure 1).

Unlike Archaea and eukaryotes, bacteria have a cell wall made of peptidoglycan, comprised of sugars and amino acids, and many have a polysaccharide capsule (Figure 1). The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. The capsule enables the cell to attach to surfaces in its environment. Some prokaryotes have flagella, pili, or fimbriae. Flagella are used for locomotion, while most pili are used to exchange genetic material during a type of reproduction called conjugation.

Eukaryotic Cells

In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water.

A eukaryotic cell is a cell that has a membrane-bound nucleus and other membrane-bound compartments or sacs, called organelles, which have specialized functions. The word eukaryotic means “true kernel” or “true nucleus,” alluding to the presence of the membrane-bound nucleus in these cells. The word “organelle” means “little organ,” and, as we learned earlier, organelles have specialized cellular functions, just as the organs of your body have specialized functions.

Cell Size

At 0.1–5.0 µm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10–100 µm (Figure 2). The small size of prokaryotes allows ions and organic molecules that enter them to quickly spread to other parts of the cell. Similarly, any wastes produced within a prokaryotic cell can quickly move out. However, larger eukaryotic cells have evolved different structural adaptations to enhance cellular transport. Indeed, the large size of these cells would not be possible without these adaptations. In general, cell size is limited because volume increases much more quickly than does cell surface area. As a cell becomes larger, it becomes more and more difficult for the cell to acquire sufficient materials to support the processes inside the cell, because the relative size of the surface area across which materials must be transported declines.

Figure 2. This figure shows the relative sizes of different kinds of cells and cellular components. An adult human is shown for comparison.

IN SUMMARY: COMPARING PROKARYOTIC AND EUKARYOTIC CELLS

Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles. Many also have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1–5.0 µm.

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions. Eukaryotic cells tend to be 10 to 100 times the size of prokaryotic cells.

Explanation:

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Answer 2

All cells share certain components except C. Nuclear membrane.

While a lot of cells have a nuclear membranes, there are some that do not such as most prokaryotes. They also do not have a nucleus.

All cells however, share 4 basic components which are:

cytoplasm genetic material such as DNA plasma cells membrane, and ribosomes.

In conclusion, not all cells have a nuclear membrane.

Find out more at https://brainly.com/question/18478861.

Options for this question include:

A. Cytoplasm.

B. Genetic material.

C. Nuclear membrane.

D. Plasma cell membrane.

E. Ribosomes.


Related Questions

Select the correct answer.
Which two fields of study do the principles of biormechanics come from?
O
A
OB.
OC.
OD.
science and technology
physics and engineering
biology and chenistry
sports and fitness

Answers

Answer:

the answer is B hope it helps

Explanation:

I need help asap
What is not a part of level one Maslow hierarchy of needs
A.sleep
B.water
C.excersise
D.food

Answers

Answer:

A

Explanation:

C. Exercise
Physiological needs are basic needs such as food, water, shelter, rest, air, etc. But it does not include exercise

19. The immediate cause of a heart attack is...

1 blood pressure drops in the veins
2 layers of fatty deposits build up slowly
an artery in the brain becomes blocked by
a clot
4 vessels that bring blood to the heart get
blocked

Answers

Answer:

Layers of fatty deposits build up slowly an artery in the brain becomes blocked by a clot.

Explanation:

Write down the steps to take if you have been a victim of SA or SH

Answers

Answer:

The steps to follow if someone is a victim of sexual assault or sexual harassment are to not feel guilty, report the act, identify the offender, seek help, share the experience and promote campaigns against sexual crimes.

Explanation:

It is considered sexual harassment (SH) when a person, the aggressor, expresses himself with words, signs or acts of sexual connotation that attempt against the physical and psychological integrity of another, the victim. Sexual assault (SA) is non-consensual physical contact, which involves contact with the genitals, kissing, fondling, or violation of the victim.

Both SA and SH attempt against the physical, psychological and emotional integrity of a person —apart from invading their personal space, violating their freedom— and in many cases the victim feels guilty and does not denounce the act they have suffered.

The necessary steps or measures that someone, victim of SA or SH should take:

Not feel guilty: each person is free and responsible for their actions, have their own personality and specific tastes. No one can feel guilt for being the way they are, and all thoughts of guilt must be eliminated in the case of SA or SH, since the guilty party is the one who uses vulnerability to carry out an incorrect act.Identify the offender: this is the only possible way to support a future report of an act of harassment or aggression. It must be possible to describe the physical appearance, manner of dress and expressions used by the aggressor.Report the act: this means not keeping silent about an act of harassment or assault that has been suffered. You should immediately alert as many people as possible to help you, and then go to the authorities to formalize a report that involves arrest and criminal charges.Asking for help: this implies seeking help from the authorities, legal advice, and medical and psychological attention. There are also support groups where victims can go to.Share the experience: both with other people and in the support groups, which contributes to diminish the burden produced by the act of SA or SH, besides helping other people to prevent and act adequately in acts of this nature.Promote campaigns against sexual crimes: which results in one of the ways to communicate to others that these acts occur, in addition to preventing offenders from acting in communities that are properly informed and alerted.

muscles are unable to do what movment? A. bend B. pull C.push .D. straighten ​

Answers

straightens D: I think six

Assume that a friend is drinking several caffeinated drinks each day and you want to warn the friend about caffeine’s risks. What would you say?

Answers

Answer:

If my friend were drinking several caffeinated drinks each day I would warn him/her of the precautions such as restlessness, irritability, fast heart beat which isn't good for a long period of times and I would tell them that it isn't healthy for their body in general andthat they should be drinking more water.

Explanation:

are disease-causing organisms that are so small you need a microscope to see them a)virus b)disease c)communicable d)pathogen

Answers

Answer:

B

Explanation:

D) pathogen would be your answer

how can refusing marijuana help you stay away from all drugs ?

Can someone really help me !

Answers

wait someone offered you marijuana????

different ways we eat?

Answers

eat: have food. ...

tuck in: (informal) eat eagerly, with enjoyment. ...

lick: eat something by rubbing it with the tongue. ...

have a snack: eat a small meal between the main meals. ...

stuff/gorge oneself: (informal) eat so much that one can't eat anything else. ...

overeat: eat more than is necessary or healthy.

Evaluate : (1296) 1/4​

Answers

324!!!!!!!!!!!!!!!!!!!!!

Which of the following is a good nutritional plan for an athlete who is taking a few months off after an injury?

Answers

Answer: Reduce caloric intake

Explanation:

Answer: Reduce caloric intake

Explanation: Took the test

Which of these is a bacterial infection that could cause discharge from the vagina or penis and difficulty peeing. Men could experience swelling of the genitals. It could result in infertility if not treated

Answers

Answer:

Chlamydia

Explanation:

During pregnancy, mothers should abstain from drinking alcohol because a fetus's liver is unable to process alcohol due to underdevelopment.

Answers

Answer:

true :) have a nice day hope this helps please give me brainliest

Explanation:

True Or False According to the text, the basis for physical fitness is good eating habits. \
True False

Answers

Answer:

true hope this helps have a nice day please give me brainliest :)

Explanation:

I believe that the answer is a good luck

As an employee, who is supposed to provide training on the chemicals you are handling or come in contact with at work? Select the best option.
Distributor
Government
Manufacturer
enployer

Answers

Manufacturer hopefully this helps :D

Answer:

the answer  is employer d

Explanation:

don't listen to the guy above me

hello, what is the fear of long words called?

Answers

Answer:

Sesquipedalophobia i think lol

Explanation:

what are some internal and external influences that influence your decisions about drug use ?
Can someone really help !!!

Answers

Answer:

It damage your internal system and it brings about ageing on the external part

What is Anna Garcia brain injury??!?!?!!

Answers

Answer:

She died of an Ischemic stroke

Explanation:

Mindy is speaking at community event to help people understand the importance of healthy eating. Which dtaent best described monster behavior

Answers

Answer: Mindy is acting as a health advocate.

Explanation:  As a health advocate, Mindy wants the community to learn about the importance of eating healthy. Learning how to eat healthy in the community is one way that people can take better care of themselves.

what would be the family relation upon getting married at the early age?​

Answers

They should take more risk

Scientists think that being kind to yourself gives you the support you need to try your best.

WHY do they think this?

A
because scientists are always self-compassionate to themselves
B
because they studied how self-compassionate students did on tests
C
because some people think self-compassion makes you smart
D
because many people who are self-compassionate try and fail

Answers

Answer: I believe it is B

Explanation:

A because a has nothing to do with what scientists think about other people

C some people may think that but we are focusing on what the scientists believe

and D people don't always fail that says they will no matter what

and that is why I believe B is the best answer

I am most positive it’s B


Which of the following statement concerning the influence of parenting styles on personality is not true?
A Children with authoritative parents have been found to be more friendly.
B. Children with permissive parents have been found to be more impulsive.
C. Children with authoritarian parents have been found to be less trusting.
D. Children with authoritative parents have been found to be less adaptable.

Answers

Answer:

D

Explanation:

Edge 2021

D. Children with authoritative parents have been found to be less adaptable.

What influences parenting?

Parenting is influenced by a variety of factors including cultural and social norms, family structure and dynamics, individual experiences and beliefs, and the specific needs and characteristics of each child.

Economic status, education level, and religion can also play a role in shaping parenting practices. Personal stressors, such as job loss or illness, can impact a parent's ability to effectively parent, while support from family and community can help mitigate these stressors. Parenting is a dynamic process that is continually shaped and reshaped by a range of internal and external factors, and can vary greatly from one family to another.

Learn more about parenting, here;

https://brainly.com/question/29560845

#SPJ6

How can using drugs increase the dangerous risks a person takes?

Answers

It can create problems that one would not like to happen their body. It can also create an addiction.

Individuals master the concept of conservation and the ability to make logical inferences during which of Jean Piaget's stages of cognitive development?
A. Concrete operational
B. Sensorimotor
C. Preoperational
D. Formal operational

Answers

During the preoperational stage so the android is C . I hope this helps

Answer:

It's actually A. Concrete Operational

Explanation: Ages 7-11, Children learn logical concrete (physical) rules about objects, such as height, weight, and volume.

Children learn conservation, the idea that an object, such as water or modeling clay, remains the same even when its appearance changes.

NEED HELP FOR assignment"""

Define a "Suffix"?

A.) Beginning of a word. Describes ​the Size, Location and Color in a medical term

B.)Describes the basic meaning of a term. Describes the body part

C.)End of the word. Describes the procedures, condition or disorder/disease.

D.)All of the above

E.) Other__________________________________-

Answers

Answer:

its an morpheme added at the end if a word so C

Select the correct answer.

Which of the following is true about sculling?

A. It's what the arm movement is called when treading water

B. You move your hands across the water like frosting a cake

C. You should hold your fingers together and cup your hands

D. All of the above

Answers

Answer:

Sculling can also refer to a specific swimming drill in which the arms and hands of the swimmer are used to propel them forwards or backwards through the water. So I think A. :)

Explanation:

Flora does not believe in discipline. She thinks that children need positive
enforcement, and that is enough to show them the way. Parents today are often too
strict, and she thinks that she can do better. Is Flora's approach likely to work?
1.) No, children need some discipline.
2.) Yes, children need a lot of positive feedback.
3.) No, positive reinforcement is not very effective.
4.) Yes, as long as Flora is nurturing, it will all work out.

Answers

I believe it’s the second one hope this helps

Answer:

A. No, children need some discipline.

Explanation: I took the test.

i need help with as many as you know pls also i need them soon​

Answers

1-c, 2-a, 3-d. hope this helps:)

Answer:

1.a

2.c

3.Liver

Explanation:

Which of the following best defines heredity?

The passage of genetic instructions from one generation to the next generation
The passage of genetic instructions from one generation to the next generation

The study of the genetic instructions that are passed from parent to offspring
The study of the genetic instructions that are passed from parent to offspring

The specific sequence of DNA and RNA that code for specific traits
The specific sequence of DNA and RNA that code for specific traits

The process of creating more organisms of a species

Answers

Answer:

The passage of genetic instructions from one generation to the next generation.

Explanation:

Heredity is when something passes from one generation to the next. Like brown hair traits being passed on from a parent to a child.

So with this being said, the answer above best fits the definition.

Which of the following statements about prescription drugs is FALSE? A. They are medicines. B. They can become illegal. C. They require a prescription. D. They can be resold freely.

Answers

Answer:

Hi there! The answer is D. They can be sold freely.

Explanation:

Prescription drugs require a prescription by a certified physician and are then tailored to specifically match the needs of a patient. These drugs cannot be sold freely as their dosage may be harmful to others individuals who may required a differing dosage and it would be illegal to do so.  

Answer:

D

Explanation:

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