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USPshnik [31]
2 years ago
15

Q4.10. Marathon runners can lose a great deal of Na* (through sweat). Some runners

Biology
1 answer:
geniusboy [140]2 years ago
6 0

Answer:

Explanation:

Basically  Na+ is an extracellular ions, while K+ is intracellular. Therefore the influx of Na+ produce depolarization and excitability of a neuron, while  K- ions outflow  from the axoplasm ensures re-polarization to return neuron to its resting state.

Therefore an Athletes , loosing a lot of Na+, and drinking water  experiences  hyponatremia. Therefore the neuron  in this case experiences low Na+ concentration , with reduction in solute potential of the axoplasm, , with consequent  high water potential.

Therefore the neuron swells up with water, and difficult to depolarize to propagate action potential.This leads to loss of sensory  control in the athletes, leading to confusion.

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KATRIN_1 [288]

Answer:

Step 1: Pollination

In general, male gametes are contained in pollen, which is carried by wind, water, or wildlife (both insects and animals) to reach female gametes. The pollen is deposited on a plant's stigma, which is part of the pistil (the elongated part of a flower extending from the ovary). This process is called pollination.

Step 2: Germination

Within a few minutes, pollen tubes begin growing, or germinating, toward the egg cell. These tubes will provide a path for the sperm carried in the pollen to reach the egg.

Step 3: Penetration of the Ovule

The pollen tubes penetrate the ovule, which contains the female gametes.

Step 4: Fertilization

Sperm travel down the pollen tubes and fertilize an egg. Most angiosperms undergo double fertilization, where both an egg and the polar nuclei in the embryonic sac are fertilized.

Explanation:

^^^^^^^^

8 0
2 years ago
Can I turn my cat into a diamond once it passes away?
otez555 [7]

Answer:

You Can Now Turn Your Pet Into a Diamond After They Pass Away. Called memorial diamonds, these blue-tinged stones are made from the ashes of your deceased furry friend and can be customized in a variety of cuts and sizes.

Explanation:

8 0
2 years ago
Read 2 more answers
Where is the Electron Transport System (ETS) located in prokaryotic cells?
kenny6666 [7]

Answer:

Cellular membrane.

Explanation:

In prokaryotes electron transport chain isIn prokaryotes electron transport chain is located in the cell membrane. ETC is defined as the series of complexes which helps in the transfer of electrons from electron donors to electron acceptors via reduction, and oxidation reaction couple the transfer of protons with electron transport across a member.

The primary function of the ETC is generated a transmembrane proton electrochemical gradient, such as oxidation, and reduction reaction.

3 0
3 years ago
Identify two factors that have changed the relationship between people and their environment, resulting in the production of pol
Alik [6]
Technology and industrialization are two top ones.
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3 years ago
List the level of organization within a multicellular organism.
saw5 [17]
Level 1 - Cells.
Level 2 - Tissues.
Level 3 - Organs.
Level 4 - Organ Systems.
Level 5 - Organisms.
5 0
3 years ago
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