Biologists have been able to keep isolated chloroplasts or
mitochondria for a few hours or days. can these structures be
considered alive?

Answers

Answer 1

Answer:

Isolated chloroplasts or mitochondria cannot be considered alive, because although they can survive while isolated for a few hours or days and they resemble that of an independent cell (which are alive), they don't metabolise energy, and they don't have cells.


Related Questions

what months can you not eat oursters

Answers

Answer:

May, June, July, and August.

Explanation:

*oysters?

The months that do not have an r you can eat oysters. The months that have an r, you cannot eat oysters, which are April, January, February, March, September, October, November, and December.

Expoisoning.

only eat oysters with a letter "r" from the the months of September thru April. I t prevents from getting watery shellfish and food poisioning.

* Do not eat oysters in May, June, July or August*

where should buildings be constructed if we want them to survive major earthquakes

Answers

Answer:

Engineers must design in structures that can absorb the energy of the waves throughout the height of the building.

Explanation:

During early adulthood, significant hormonal changes continue. What is a result of this in some males?
a. beginning of production of testosterone by the testes
b. beginning of sperm production
c. beards grow thicker and their voices become slightly deeper and richer
d. increased body hair begins

Answers

Answer:

A

Explanation:

Answer:

c. beards grow thicker and their voices become slightly deeper and richer

Explanation:

Early adulthood scientifically lasts from age 20 to age 39, so, while you may be thinking puberty (hair growth, etc) it is more subtle changes such as the fact that the voice 'become slightly deeper and richer' . Both males and females continue to put on more weight (hormonal, not dietary!). Hope this helps! :)

What evidence is there that all living things are made of cells? ​

Answers

Microscopes & research.

Anton von Leeuwenhoek develops a more powerful microscope that allows him to see living cells like bacteria. Matthias Schleiden and Theodor Schwann conclude that all living organisms are made of cells, and that cells can be produced from other cells.

A cell can be described as the structural and functional unit of life. It can also be described as the building material of all living organisms.

Without the cell, most living organisms will not be able to function. An organelle will not be able to survive that long within its life span without the presence of cells. It will just withe and die off.

Lots of scientists have proved in various ways the existence of cells, this is because they have been able to create microscopes that can see these tiny cells. This is evidence that proves the existence of cells.

Please see the link below for more information;

https://brainly.com/question/16247044?referrer=searchResults

Prokaryotic cells NEVER have a nucleus
A. True
B. False

Answers

Answer:

false

Explanation:

Answer:

The answer is A. true

Explanation:

help me out please! ​

Answers

Answer:

223

Explanation:

Answer:

the answer is c because it grabs carbon and turns it into oxygen which is what we breath

When a sperm cell and egg cell join together what is it called?
1. sperm
2. Gamete
3. baby
4. Zygote

Answers

Answer:

4. Zygote is the answer

Answer:

Zygote

Explanation:

During fertialization a sperm cell and an egg cell come together to form a zygote.

If blood is in short supply which blood type would be the most beneficial to have on hand if someone needed a blood transfusion

Answers

O negitive and positive

someone please help it’s due in 10 minutes

Answers

Answer:

the answer is D good luck

Answer:

bilateral symmetry

Explanation:

The following picture illustrates the importance of organisms interacting with ___________ factors in their environment.

Abiotic
Biotic

Answers

Answer:

Biotic

Because the acorn is abiotic.

abiotic factors are non-living physical parts of the environment that affect living organisms and the functioning of ecosystems.

Answer:

Biotic

Explanation:

bio means living thing such as animals, plants, humans, etc

What shares ¼ of its genes with humans?

Answers

Neanderthals have contributed approximately 1-4% of the genomes of non-African modern humans, although a modern human who lived about 40,000 years ago has been found to have between 6-9% Neanderthal DNA

When one or more nucleotides are lost, this is called

Answers

Answer:

Deletion mutation

Explanation:

A deletion mutation can remove a single nucleotide, or entire sequences of nucleotides

Which two words would BEST replace "mimicked" and composition in the selection above WITHOUT Changing the meaning?
(A) dissolved contents
(B) located, foundation
(C)
formed, structure
(D)
resembled, makeup

Answers

Answer:

The answer is D.

Explanation:

I need help on this help

Answers

Answer:

the answer is within young Padawan

Explanation:

What
process cannot occur in the dark
treatment of photosynthesis?

I WILL GIVE YOU BRAINLYEST!!

Answers

Answer:

the complete process

Explanation:

i hope this helped!

Which of the following normally leads to the production of functional messenger RNA in eukaryotic cells?

Answers

Answer: The removal of portions of RNA known as intervening sequences (introns)

Explanation:

The removal of portions of RNA is known as intervening sequences (introns).

What is the process of splicing?

In order to enable the translation of mRNA into a protein, RNA splicing puts together the protein-coding regions (exons) and cuts out the intervening, non-coding segments of genes (introns) from pre-mRNA.

Intron sequences are cut out and exon sequences are joined during the splicing process.

As RNA matures, introns are cut out via RNA splicing, which means that they are not expressed in the resulting messenger RNA (mRNA) product.

In contrast, exons continue to be chemically bound to one another to produce mature mRNA. Exons are expressed sequences, whereas introns can be thought of as intervening sequences.

Therefore, the removal of portions of RNA is known as intervening sequences (introns).

Learn more about splicing, here;

https://brainly.com/question/14101733

#SPJ6

Why we have to study the karyotype?

PLS SOMEONE HELP ME

Answers

It can reveal changes in chromosome number associated with aneuploid condition such as trisomy 21.
It also allows your doctor to Termine whether there are any abnormalities or structural problems within the chromosomes


Hope this helps

What happens to the cell at the beginning of interphase?

Answers

Early interphase is called the G1 phase of the cell cycle. G1 is the time during which a cell grows to its proper size by making more cytosol, the liquid inside a cell. An increase in cell size means the cell must make more protein and membranes. ... Cells that mature and never divide again stay in the G0 phase.

Answer:

Explanation:

Early interphase is called the G1 phase of the cell cycle. G1 is the time during which a cell grows to its proper size by making more cytosol, the liquid inside a cell. An increase in cell size means the cell must make more protein and membranes. ... Cells that mature and never divide again stay in the G0 phase.

Henry puts a plant into a beaker with water. After sometime he added blue ink into it A few hours later he observes that flowers turn from white to blue.

Answers

Answer:

The change in color in the flowers is because the plant has absorbed the dyed water. After some hours, we can see that the water has ascended through the roots, the stem and reached the flower petals. We can see the water's path till it evaporates in a process called transpiration, which returns water to the atmosphere.

Explanation:

Plants absorb water and other nutrients so that they can live. When we add ink into the water, we can see the water's path from the roots, up the stem, the leaves, and the flowers. In the flowers, the water evaporates through the stomata. We call this process transpiration. The ink allows us to see that the water was in the petals, but it evaporates, leaving behind the ink. As water evaporates, the plant drinks more, which results in a more intense color in the petals.

concentration.
a. The video clip explains that you can also look at water as moving to a
concentration of solute molecules.
b. Why can it also be viewed this way?

Answers

Answer:

A. The video clip explains that you can also look at water as moving to a HIGHER concentration of salute molecules.

B. Why can it also be viewed this way?

Because there is more salute and less water.

What happens when the net energy is zero

Answers

Answer:   Zero Net Energy = Zero Net Emissions

Explanation:   With the addition of renewable energy generation, a ZNE building's annual energy costs become negligible, and since there is a net-zero balance of energy production and use, your building's carbon footprint with respect to energy consumption would also approach zero.

What type of molecule is used to cut genes from a DNA of an organism

Answers

Answer:

It is restriction enzymes

Explanation:

Vegetables help us have:
A restful night's sleep
Healthy skin and eyes
Indigestion
Properly working sweat glands

Answers

Answer:

healthy skin and eyes.

Explanation:

Answer:

Yes vegetables do help u with that is that the only question feel free to ask me for more questions.

write difference between aerobic and anaerobic repiration?​

Answers

Aerobic uses oxygen to function and anaerobic does not use oxygen to function

Explanation:

Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy.

Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen

Analogy of Cell wall

Answers

Answer:

In school, I was taught that it is like a bouncer who controls who enters and exits the club because the cell membrane controls what is able to permeate into the cell. It’s good, but I like to think of it as a door.

HELP ME

this is a K12 question


The weather is warm and dry.

Which change would a cold front bring?



rain or thunderstorms


extended period of rain or snow


dry air and sunny skies


several days of gray skies

Answers

Answer:

rain or thunderstorms

Explanation:

Answer: It brings rain or thunderstorms.

Hope this helps!

7.
Students were investigating the movement of water through a semi-pern
with the salt concentration shown below.

Answers

Answer:

It depends on the salt concentration inside the cell.

Explanation:

The movement of water through a semi-permeable membrane with different salt concentrations depends on the amount of water and salt concentration in the cell. If the cell has more salt concentration so no more salt moves inside the cell but moves outside the cell while on the other hand, if the cell has low amount of salt than the outer environment then the salt moves inside the cell until its concentration are equal.

which factor makes enzymes well-suited to the role of catalyst in bio chemical reaction?

Answers

They speed up the rate of reactions by lowering the reactions activation energy

Answer:

Enzymes can be reused because they do not permanently bond with substrate

Explanation:

Could someone help me out on this problem

Answers

i would go with the first option

Someone plz help with all the questions

Answers

Answer:

The surface of the pond froze overnight.boughSherry needs a new break on her motorcycle before she'll be able to race.Their dog got mud in its fur from rolling in a mud puddle.fact

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