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Veronika [31]
3 years ago
5

Blood contains numerous biconcave cells called ____________ , contained in a featureless matrix called ____________

Biology
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0

Answer:   Blood contains numerous biconcave cells called erythrocyte , contained in a featureless matrix called plasma

Explanation:

Blood is a liquid contain in the body of man and animals that transport the necessary nutrients and oxygen to the cell and then takes away metabolic waste from the cell. There are numerous cells in the body which are the Red blood cells and also the red blood cell.

This red blood cell is also called erythrocyte which is the numerous biconcave cells. This white blood cells and erythrocytes are   all in the blood plasma. Both the erythrocytes  (i.e red blood cell) and the white blood cell are all contained in a featureless matrix called the plasma.

This plasma is made up of blood, water, carbon dioxide, dissolved proteins,  and hormones.

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Append means:
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hope this helps
7 0
3 years ago
During light reactions, ATP is produced when hydrogen ions move:
Natalija [7]

Answer:

The correct answer will be option-C.

Explanation:

Light-dependent reactions are the reaction of photosynthesis which takes place in the presence of light.

During light reaction, ATP and NADPH intermediates are produced which are utilized during the light-independent reaction. The main reactions that take place during light reactions are photolysis of water and ATP synthesis due to the electron transport chain.

Electron transport chain generates electrochemical gradient across the thylakoid membrane sue to the accumulation of protons in the thylakoid lumen and fewer protons in the stroma of the chloroplast.

This causes the osmotic movement of protons down their concentration gradient through ATP synthase. The movement if hydrogen ions take place from thylakoid lumen to stroma forming ATP molecules.

Thus, Option-C is the correct answer.

5 0
3 years ago
The efficiency of a car’s engine is 14 percent. This implies that the engine wastes
Harlamova29_29 [7]

Answer:

C) 86 J of energy for every 100 J that enter it.  

Explanation:

Efficiency is a measure of performance of an engine which can be calculated by the formula as given below to get in percentage:

           Efficiency = energy output/energy input x 100

If the efficiency of a car’s engine is 14 percent it means that for every 100 joules of energy that is entered into it, only 14 joule is converted into useful output and rest of the 86 Joules is wasted.

The efficiency of any machine is never 100%, however, if any machine miraculously converts all the input energy to useful output energy, it means it is 100% efficient.

Hope it helps!


7 0
3 years ago
I Need Help Please!!!!
disa [49]

It didn't let me type my answer. Hope this helps!

6 0
2 years ago
Which resource is a renewable resource?<br><br><br><br><br><br><br> HURRY
Vitek1552 [10]

Answer:

Trees

Explanation:

because they can be replanted.

3 0
2 years ago
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