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3 years ago

Differenciate between intracellular enzymes and extracellular enzymes.

1 answer:

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Intracellular digestion takes place in animals without a digestive tract, in which food items are brought into the cell for digestion. Extracellular digestion is a process in which animals feed by secreting enzymes through the cell membrane onto the food.

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How do you survive in mars

Cloud [144]

Answer: Human survival on Mars would require living in artificial Mars habitats with complex life-support systems. One key aspect of this would be water processing systems. Being made mainly of water, a human being would die in a matter of days without it.

Explanation: have a good day

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3 years ago

A primary oocyte residing in a primordial follicle becomes a secondary oocyte ________.

umka2103 [35]

A primary oocyte residing in a primordial follicle becomes a secondary oocyte "in the vesicular follicle".

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3 years ago

Read 2 more answers

Which group of non-prokaryotic organisms studied in microbiology typically have two life cycle stages: trophozoite and cyst?

Mama L [17]

Non-prokaryotic organisms typically have two life cycle stages: trophozoite and cyst is Protozoa.

<h3>What is Protozoa?</h3>

Protozoa is a group of single celled, non- prokaryotic organisms.
These may either be free living or parasitic in nature.
These are heterotrophs and reproduce asexually by binary fission.
The Protozoa consists of many unrelated or loosely related organisms.
They are divided into four major groups: Sarcodina, Flagellates, Ciliates and Sporozoans..
Some protozoa consist of two phases in their life cycle: proliferative stage (trophozoites) and resting stage (cysts).
Trophozoites consists of the proliferative stage in which the protozoa divides and reproduces.
The resting cyst form helps the protozoa to survive harsh environmental conditions like harmful chemicals, extreme temperature and nutrient and water deficiency.

Learn more about protrozoa here:

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1 year ago

On-center cells: A. are excited by light that falls in the periphery of their receptive field. B. are excited by light that fall

Elena L [17]

Answer: B) are excited by light that falls in the center of their receptive field.

Explanation:

There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.

If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.

Hence, the correct option is B.

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3 years ago

Diagnose: Mrs. Harris is a 60 year old white woman. She has noticed in recent years that her height has slightly decreased. Rece

Brut [27]

Answer:

Q: Which skeletal system disorder might she be suffering from?

A: Osteoporosis

Q: What techniques could be used to diagnose her condition?

A: Bone mineral density (BMD) test or dual energy X-ray absorptiometry (DXA) scan

Q: What treatments are available?

A: Medication, healthy food.

Explanation:

The vertebral discs between vertebrae could shrink with age. Therefore, a height loss up to 1-inch is normal. However, if the height loss is more then it is possibly due to osteoporosis.

A bone mineral density test, also known as dual energy X-ray absorptiometry scan, is a well-adapted test to measure the amount of calcium and other minerals in the bones. It uses X-rays to measure the content of calcium and thus strength of bones.

A person who is already suffering from osteoporosis should be treated with medicine right away so that it stops further deterioration of the bones and avoid any future bone fractures. Further, it can be handled by eating a healthy diet and supplements such as vitamins D. In case some of the bones/vertebrae are already fractured, surgical approaches might be necessary.

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4 years ago