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Aleksandr [31]
3 years ago
9

From your data, might it be inferred that:

Biology
1 answer:
MissTica3 years ago
4 0

The answer is Starch molecules are larger than glucose molecules

The experiment show that the result of starch molecule test show higher concentration of carbohydrate than glucose. This show that the starch is made of multiple sugar. Because the starch is made of multiple sugar, it should be obvious that the size of the starch also bigger of the glucose.

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Both insects and roundworms exhibit ______, whereas sponges, snails, and leeches do not.
erik [133]
I think the correct answer from the choices listed above is option A. Both insects and roundworms exhibit molting during growth, whereas sponges, snails, and leeches do not. It is the process of shedding old feathers, hair or skin to make way for new growth.
6 0
3 years ago
How will an intravenous catheter obstructed by blood clots or kinking affect central venous pressure in dogs?
Ainat [17]

Answer:

It will give a false reading of the central venous presure.

This is due to capillarity which increases the volume of the cattheter will the blood clots.

Explanation:

8 0
3 years ago
What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?
blsea [12.9K]

Answer:

Channel proteins and Carrier proteins

Explanation:

These are type of membrane proteins that transcend the entire length of  phosphoslipid  bi- layer  in the plasma membrane.They facilitate the movement of ions  and molecules across  the walls of the plasma membranes.

Generally, substances like glucose, amino acids, are too large to pass through the phopholipid bilayers. Likewise ions of  potassium, sodium calcium, because of their polarities can not pass through either. They are ferried across the phospholipid by  group of protein structures called channel proteins. Some are also transported across by carrier  proteins.  The process by which these protein structures  aided the  diffusion of substances across the phospholipid bilayer is called Facilitated diffusion.

Channel proteins are pores, that are filled with water molecules with the entrance  well gated.  That is the entrance  is controlled by part in the inner structure  of the protein  which can open or close the pores  like a gate to control the movement of ions across it. e.g Sodium channels are gated for  movement  of sodium ions by voltage or ligands(chemicals) during  nervous  transmission to elicits action potential. Like wise Potassium channels allow  diffusion of potassium ions across the phospholipid bilayers. it gates are shut when sodium channels are open; this  regulate ion exchange.

Their structures are well fixed in shape , specific  to the substance or ions being  transported;and the rate of diffusion  depends on  the like hood of opening of the gate or closure.

Carrier molecules  also in the membranes  do not have a fixed shape, and their transport  direction is determined by the direction of concentration gradients. Thus they can flip on either sides of the membranes to aid diffusion across. Their movement can  be both passive and active, and the rates  of diffusion depends on the number of available carrier proteins in the membrane. They are also specific to the ions they transport.And are not gated,

Therefore these two membrane integral  proteins  facilitate movements of substances across the phospholipild bilayers

8 0
3 years ago
What are the three kinds of cells found in blood?
never [62]

red blood cells, white blood cells ,and platelets.

5 0
2 years ago
Read 2 more answers
What process is shown in figure A?<br> What process is shown in Figure B?
lukranit [14]

Answer:

Figure A: active transport

4 0
3 years ago
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