All categories

2 years ago

Looking at a cell under a microscope, you note that it is a prokaryote. How do you know? (1 point)

2 answers:

5 0

The correct option is C.
There are basically two types of cells, they are prokaryotic and eukaryotic cells. The eurkaryotic cell is a well developed cell that is usually find in multi cellular organisms while the prokaryotic cell is usually find in unicellular organisms. The prokaryotic cell is typically described as a primitive cell because it lacks nucleus and do not possess most of the remaining cell organelles. The organisms that possess prokaryotic cells are called prokaryotes. Examples of such organisms are bacteria and archaea.
Instead of nucleus, prokayotes possess a nucleiod region which contains the cell's DNA. Prokaryotic cells also possess cell wall, cytoplasm and ribosomes.

enot [183]2 years ago

4 0

A prokaryotic cell is devoid of a nucleus, unlike a eukaryotic cell.

Further Explanation:

A prokaryote is a single-celled organism that does not contain a distinct nucleus. It also lacks other membrane-bound organelles such as endoplasmic reticulum, mitochondria, chloroplast, and Golgi apparatus. For example, E. coli, archea, streptococcus bacteria, and Streptomyces bacteria. The region containing the DNA is called nucleoid. The nucleoid is not membrane bound.

The genetic material (DNA), proteins and other metabolites are present within the cytoplasm of a prokaryotic cell surrounded by a cell membrane and not in separate cellular compartments. Certain bacteria also contain flagellin protein which makes the flagellum required for chemotaxis. The physiological response of a bacteria in the direction of increasing or decreasing the concentration gradient of a particular molecule is chemotaxis.

The prokaryotes or bacteria might acquire four basic shapes: cocci, spiral, bacilli, and vibrio. A coccus shape represents a bacterium which is ovoid or spherical in appearance. A bacterium is called spiral when it contains spiral-shaped twisted rods. Some other bacteria have either cylindrical or comma-shaped and are hence called as bacillus or vibrio, respectively. The bacterial and archaeal species perform asexual reproduction, for example, binary fission.

On the other hand, the eukaryotes are multicellular as well as unicellular. The unicellular eukaryotes are algae, protozoa, and phytoplankton whereas, the multicellular eukaryotes are animals, brown algae, green algae, and fungi. The organelles present in the cytoplasm of the eukaryotic cell are mitochondria, chloroplast, nucleus, and Golgi apparatus. These organelles are bound by a membrane on the outside. The major part of DNA is present in the nucleus which is surrounded by a nuclear membrane whereas; mitochondria and chloroplast also contain some of the genetic material in the case of animals and plants respectively.

Learn more:

1. Learn more about science and society brainly.com/question/1721226

2. Learn more about difference between law and theory brainly.com/question/192651

3. Learn more about primary succession brainly.com/question/1386621

Answer Details:

Grade: High School

Subject: Biology

Chapter: Cell- The Unit of Life

Keywords:

Eukaryotes, prokaryotes, DNA, genetic material, membrane-bound organelles, nucleus, nucleoid, mitochondria, chloroplast, endoplasmic reticulum, multicellular, unicellular, single-celled organism, flagellum, flagellin.

You might be interested in

Which of the answer choices is a cross section of the highlighted region of the mushroom in the picture

Daniel [21]

Answer:

The mushroom in the picture and the option choices are included in the attached image. below...

The highlighted region of the mushroom in the picture represents the mushroom's "Gills", and paticularlly the multicellular structure carrying the Hymenium called "the basidiocarp" aka basidioma; the Hymenium or underside of the mushrooms is comprised of vertical plates arranged radially, and if a cross section of this is exposed by making a straight cut through the basidiocarp on a microscope, it would appear as option: (A. )

4 0

2 years ago

Brainly me help wala option kha hota hai

ozzi

Answer:

1 .Start by putting on a song with a good beat.

2. Start with the side-to-side move.

3. Sway right, left, right, right.

4. Add some arms once you feel you have the style down

EXPLANATION

how to dougie

6 0

2 years ago

The large surface area in the gut directly facilitates _____.

Flura [38]

Answer:

B. Absorption

Explanation:

Absorption is a process that takes place in the small intestines or ileum of the GI tract, in which simple and soluble nutrients are absorbed into the blood stream.
Absorption is enhanced by several adaptations of the gut such as large surface area of the gut which directly facilitates absorption of nutrients.
Presence of villi and microvilli in the gut increases the surface area for absorption of nutrients in the ileum.

6 0

2 years ago

How is neuron like and different from a blood cell

jok3333 [9.3K]

Answer:

Neurons are similar to other cells because neurons have a cell membrane, a nucleus, cytoplasm, mitochondria, organelles, and carry out processes such as energy production.

Neurons differ from other cells because neurons have extensions called axons and dendrites, they communicate with each other through an electrochemical process which we just talked about, and neurons have specialized structures such as synapses and chemicals such as neurotransmitters.

Explanation:

there you go

5 0

2 years ago

Is someones thought considered homeostasis?

tatyana61 [14]

Homeostasis can be defined as a property of an organism or system

8 0

2 years ago