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3 years ago

Under what conditions would a cell perform lactic acid fermentation instead of the krebs cycle and etc

Biology

1 answer:

AnnZ [28]3 years ago

8 0

If there was a lack of oxygen

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DNA is one example of how genetics is used as evidence of evolution. Explain what this is and how it is used

Inessa [10]

Breaking cells open to release the DNA.
Separating DNA from proteins and other cellular debris.
Precipitating the DNA with an alcohol.
Cleaning the DNA.
Confirming the presence and quality of the DNA.

3 0

2 years ago

1. What are the end products of photosynthesis?

Firlakuza [10]

Answer:

1. Glucose And Oxygen.

2. Transpiration is the process by which water is lost in the form of water vapour by evaporation from the surface of leaves and other serial parts of plant .

3. A. Cooling Effect : The water keeps on evaporating from the leaf surface during transpiration . The heat required for evaporation of water is obtained from the plant itself and thus, the plant cools itself when it is hot outside.

B. Transpiration Pull : As water evaporates from the leaf surface, the roots pull up more water from the soil to make up for the water loss during transpiration .As a result, important mineral salts are also brought along with the water. These salts are necessary for the growth of the plant .

4. Leaf Tendrils : Sweet Pea

Spines : Cactus

Scale Leaves : Onion

5. Pitcher Plant, Venus FlyTrap, Blodderwort

6. Normally plants propogate with the help of seeds contained in the fruits . But some new plants may also be produced from other part of the plant such as the roots, stems, and leaves . This type of reproduction is called vegetative propogation .

E.g. = Bryophyllum .

Explanation:

<h3 /><h3>Hope it works out !!</h3>

7 0

3 years ago

Compare and contrast light microscopes, scanning electron microscopes, and transmission electron microscopes. Sort each statemen

podryga [215]

Answer:

Light microscope:

use a beam of light to produce magnified images
can be used to examine living cells and tissues

Scanning electron microscope:

use a beam of electrons to produce magnified images
can be used to examine DNA
can be used to examine cells

Transmission electron microscope:

use a beam of electrons to produce magnified images
can be used to examine DNA
can be used to examine cells

Explanation:

Light microscope: is a commonly used microscope also known as compound microscope. Magnifies images from 40X upto 1000X. It uses ray of visible light to produce a magnified image. The light microscope can be used to view specimen of both living and dead cells or tissues. However, it doesn't give a detailed view of a specimen like electron microscope.

Scanning electron microscope: It uses electron beam as an illuminating source. It has a much higher resolving power than light microscope because it uses electrons instead of light. It magnifies object upto 500000 times the actual size. Internal structures can also be viewed. However, only dead specimen can be used because the beam of electrons can kill the cells. They are of two types:

Scanning electron microscope(SEM): an electron beam passes over the specimen's surface and displaces electrons which are then focused on a screen to form an image. Images appear in 3-D
Transmission electron microscope: electromagnets magnify the image by passing beam of electrons through a thin specimen. Images appear in 2-D

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3 years ago

What parts of the nervous system interact to allow a someone to walk

lord [1]

idk but i think it is the peripheral nervous system

3 0

3 years ago

Fossils are usually found in which kind of rocks?

Natasha_Volkova [10]

A. Sedimentary Rocks

5 0

3 years ago

Read 2 more answers