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meriva
1 year ago
11

In the absence of oxygen, yeast cells can obtain energy by fermentation, resulting in the production of _____. in the absence of

oxygen, yeast cells can obtain energy by fermentation, resulting in the production of _____. atp, pyruvate, and acetyl coa atp, co2, and lactate atp, co2, and ethanol (ethyl alcohol) atp, nadh, and pyruvate
Biology
1 answer:
Thepotemich [5.8K]1 year ago
4 0
Anaerobically (in absence of oxygen), yeast cells may obtain energy by fermentation, resulting in the production of ATP, CO2 AND ETHANOL.  This is called ethanol fermentation or alcoholic fermentation where sugars such as glucose, fructose, and sucrose is converted into cellular energy (ATP), producing ethanol and carbon dioxide as by products.
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The nurse has tested the near visual acuity of a 45-year-old client. the nurse explains to the client that the client has impair
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Presbyopia is age-related farsightedness due to hardening of the lens of the eye that causes the eye to focus light behind rather than on the retina when looking at nearby/close objects. 
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2 years ago
When the cell engulfs small, dissolved particles, it is called _____. Select all that apply. endocytosis exocytosis pinocytosis
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When you say small dissolved particles I am going to say endocytosis.
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The statrum ____________ is a single layer of columnar or high cuboidal cells resting on a basement membrane. the stratum ______
vodka [1.7K]

1. Answer;

Stratum basale.

The statrum basale is a single layer of columnar or high cuboidal cells resting on a basement membrane.


Explanation;

Stratum basale is the deepest layer of the epidermis in the skin.

It is a single layer of columnar or high cuboidal cells resting on basement membrane

-Keratinocyte is predominant cell in this layer of the epidermis

It also contains melanocytes, Merkel cells (touch receptors), and stem cells.

The Keratinocytes undergo mitosis, producing stem cells and cells that migrate into stratum spinosum.


2. Answer;

Stratum spinosum

The stratum spinosum composed of many layers of keratinocytes that are firmly attached to each other by desmosomes. this layer also contains dendritic cells.


Explanation;

Stratum spinosum is a layer of the epidermis that is between the stratum basale and stratum granulosum.

It Helps maintain physical strength of epidermis and also helps maintain barrier to infectious agents and harmful substances.


3. Answer;

Stratum granulosum

The stratum granulosum is composed of 3-5 layers of flattened keratinocytes containing dark staining keratohyalin granules.


Explanation;

Stratum granulosum contains three to five layers of flattened keratinocytes

It has keratinocytes that contain dark staining keratohyalin granules (precursor of keratin) .

The nuclei of keratinocytes in various stages of degeneration.

Cells in this layer undergo keratinization; the process by which the nucleus shrivels up, cell dies, and cell fills up with the protein keratin.

The layer function to protect the deeper layer of the skin.


4. Answer;

Stratum lucidum

The stratum lucidum is a translucent layer composed of 3-5 layers of keratinocytes without nuclei or organelles.


Explanation;

It is a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope.

It constitutes the outer epidermal layer and comprises of dead skin cells.

It is responsible for the capability of the skin to stretch and also contains a protein that is responsible for the degeneration of skin cells.


5. Answer;

Stratum corneum

The stratum corneum is composed of up to 30 layers of cornified, dead cells.


Explanation;

It is the outermost layer of epidermis in the skin.

It is the skin barrier and acts as our first line of defense against the external environment.

It is a compact layer of cells and lipids that has two critical functions which includes; protecting the bodies from bacteria, UV damage and other assaults; and also preventing natural moisture from escaping, to keep skin hydrated.

8 0
2 years ago
Paper chromatography is a technique used to separate molecules based upon their size and solubility in a particular solvent. If
Tanya [424]

Answer:

a. Paper chromatography would separate the pigments into several bands that appear green or yellow/orange.

Explanation:

The primary or main pigment in plants is the chlorophyll. The chlorophyll gives plants their characteristics green colour and helps in the absorption of light during photosynthesis.

Other pigments in plants include carotenoid with its characteristic yellow, red or orange colour; anthocyanin with its re/blue colour and betalains with its red/yellow colour.

<em>Hence, if pigments from a particular species of plant are extracted and subjected to paper chromatography, one would expect the pigments to be separated into several colour bands ranging from green to yellow/orange.</em>

The correct option is a.

4 0
1 year ago
Over a period of time, the beetles once again reached carrying capacity and sustained it for many years. However, pollution from
Nookie1986 [14]

Answer:

As the beetles have a uniform distribution, at a carrying capacity of 14,600 beetles, there are about 128 beetles per hectare. Because 55 hectares are now unlivable, the carrying capacity would decrease by about 7,040 individuals (55 × 128).

Therefore, the carrying capacity of the ecosystem will be (old carrying capacity – decrease in carrying capacity) = (14,600 – 7,040) = 7,560 beetles.

Explanation:

answer from Plato

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2 years ago
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