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alekssr [168]
3 years ago
12

Which of the following is a function of carbohydartes

Biology
1 answer:
g100num [7]3 years ago
5 0

Explanation:

please write full question

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Sequence the steps, 1–4, in the order required to create a permanent slide of human cheek cells. [1 mark] Specimen dehydrated Sp
gogolik [260]

Answer:

The correct order is dehydration, embed in wax, cut into sections, staining

Explanation:

There are certain proceedings needed to obtain stained sections of vegetable or animal tissues for their microscope observations.

These steps are:

  • Obtention of the material: The tissue is cut to an adequate size.
  • Fixation: When tissues are extracted from the organism, they suffer autolysis and putrefaction, so they need to be fixated in order to keep their cells in the best state possible. Fixation involves preserving the original morphological and molecular characteristics of the tissue. Fixation avoids autolysis, putrefaction, distortion, and retraction of cells and the tissue that could affect its volume or morphology.  
  • Dehydration. Once fixated, the fixator must be eliminated and the tissue is dehydrated by using a gradual series of solutions with alcohol in ascendant concentrations. Dehydration must be gradual to avoid tissue deformation.
  • Inclusion. To obtain thin cuts that can be observed under the optic microscope, the tissues must be included in a consistent, firm substance, that might be either hydrophilic or hydrophobic. A hydrophobic medium is paraffin wax, that provides hardness and plasticity.  
  • Cut. The tissue included in wax must be cut in slides or sections thin enough to allow the diffusion and penetration of light. A microtome is used to perform these cuts. When using paraffine for tissue inclusion, the cuts are about  5 to 20 micrometers of thickness.
  • Stain. Once the cuts are performed, paraffin wax must be eliminated. This can be done by using an organic solvent. Then the tissue must be stained. Hematoxylin and Eosin are the most common dyes. Animal tissues in general do not have any natural color, so they need to be stained to be observed.  
7 0
3 years ago
Can someone explain to me why the answer is D?? Thank you!
rjkz [21]

D is the answer because carbondioxide and oxygen are both needed for plants or green plants to survive.

I hope it helped

7 0
3 years ago
- this is converted into food by the process of<br>photosynthesis​
astra-53 [7]

Answer: Sunlight

Explanation: Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Hope I helped!!

8 0
3 years ago
Read 2 more answers
Why do chloroplast matter in photosynthesis
Black_prince [1.1K]

Answer:they convert light energy! they play a big part in photosynthesis

Explanation:

8 0
3 years ago
The cytoplasm divides during this segment of mitosis _____.
-BARSIC- [3]

Answer:

<em>The correct option is D) cytokinesis</em>

Explanation:

Mitosis can be described as a process in a cell replicates to form two identical copies of itself.

Cytokinesis can be described as the last stage of cell division for both prokaryotes and eukaryotes. During this stage, the cytoplasm eventually divides and the cell splits into two with equal portions of cytoplasm in each side. Although the mechanism of cytokinesis is different for both plants and animals yet it is the final stage for both the cell type in which the cytoplasm splits.

7 0
3 years ago
Read 2 more answers
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