Is there a stomata in the epidermis of the stem of the onion mrigal? 200

Yes. However, it usually mainly relies on the movement of the leaf stomata If the transpiration is too strong during the day, the guard cells lose water and the stomata are closed. Stomata can still be aerated when the leaves are damaged.

No, the stomata are only distributed on the surface of the blade, and there are more on the lower surface than on the upper surface.

There are no stomatae, and the respiration of the underground part of the plant generally depends on dissolved oxygen, so the underground part of the plant will not have stomata. Plants with respiratory roots are no exception.

The inner epidermis is not involved in respiration, does not require stomata and naturally does not have stomata.

Magic Apprentice Level 1 What are you answering.

The inner epidermis is not involved in respiration, does not require stomata and naturally does not have stomata.

No. Only the leaves have stomata that are used for respiration.

100 no, I vouch for my life. If I was wrong, I committed suicide by jumping off a building. (Be sure to choose me!) ）

There are stomata, you can refer to the biology book of junior high school.

There are no only some red spots.

Yes Because I feel like every plant has to breathe!

Example 1: 1994 Zhejiang Provincial High School Examination Questions) In an experiment of electrolysis of water, the two electrodes in the device are connected to a 12-volt DC power supply, the current flowing is ampere, and 16 10 2 grams of oxygen can be obtained by powering on for 1 minute.

Analysis and solution: The electrical energy consumed is determined by the voltage at both ends of the DC power supply, the current flowing and the energizing time Because oxygen grams can be obtained by powering on for 1 minute, the key is to know how many grams of oxygen are generated by electrolysis grams

Let the electrolysis of water produce oxygen as x grams, then.

2H2O 2H2O2, g x36 32 g x, x (g

Therefore, the electrolytic gram water needs to be energized for 100 minutes, so according to the w uit 12 volt ampere 100 60 seconds joule

Example 2: The 3rd Natural Science Competition of Zhejiang Province) Hydrogen is a clean energy source with a burn value of coke kilograms Most of the hydrogen on the earth exists in the form of chemical compounds (mainly water) When developing hydrogen energy, if hydrogen is obtained by electrolysis of water (at 20 thousand volts, 500 amperes, 9 tons of water electrolysis in 24 hours), is this method valuable?

Analysis and Solution:

The amount of power consumed is determined by the voltage at both ends of the DC power supply, the current flowing through it, and the time it takes to turn on the power according to W uit 2 104 volts 500 amps joule

Assuming that the mass of hydrogen produced by electrolysis is x kilograms, then.

2H2O 2H2 O2 , 9000 kg x

36 4 9000 kg x, x (9000 kg 4) 36 kg

The hydrogen produced can provide heat q 1000 kg joules per kilogram joule

q w, this method has no practical value

The vast majority don't.

It's a different story if the genes are mutated.

Summary. Yes, tiny stomata on the epidermal cells of onion scales are called stomata or leaf pores.

Yes, tiny stomata on the epidermal cells of onion scales are called stomata or leaf pores.

Can you add, I don't quite understand it.

Onion scale leaf epidermal cells are stomata-like. Stomata are important organs in the plant body for respiration, transpiration, and absorption of certain gaseous substances, usually located on the lower cortex on the surface of the leaves. In the epidermal cells of onion scales, the stomata are located on either side of the epidermal cells, surrounded by two kidney-like cells.

The opening and closing of the stomata is controlled by the internal regulation mechanism of the plant body, which automatically adjusts the size of the stomata to ensure normal respiration and transpiration according to changes in the external environment. Because of this, the presence of stomata is very important for the pure skin cells on the surface of onion scales and leaves, and it is also necessary to maintain plant life activities.

Summary. I am, onion scale leaf epidermal cells have stomata. Stomata is a special structure of plant cells that regulates the gas exchange of plants and thus the growth and development of plants.

The stomata of the epidermal cells of onion scale leaves are made up of a special structure called a "stomatal membrane", which consists of a membrane and a layer of proteins that regulate the flow of gases. The solution to this problem is: first, the epidermal cells of onion scale leaves are microscopically observed to determine whether they have a stomatal structure; Secondly, immunofluorescence techniques can be used to detect the presence of stomatal membranes to determine whether onion scale leaf epidermal cells have a stomatal structure; Finally, fluorescence techniques can be used to examine the function of the stomatal membrane to determine whether the stomata of the epidermal cells of onion scale leaves are able to properly regulate the flow of gases.

I am, onion scale leaf epidermal cells have stomata. Stomata are a special structure of plant cells, which can regulate the exchange of air bonds in plants, thereby regulating the growth and development of plants. The stomata of the epidermal cells of onion scale leaves are made up of a special structure called a "stomatal membrane", which consists of a membrane and a layer of proteins that regulate the flow of gases.

The solution to this problem is: first, the epidermal cells of onion scale leaves are microscopically observed to determine whether they have a stomatal structure; Secondly, immunofluorescence technology can be used to detect the presence of stomatal membranes to determine whether the epidermal cells of onion scale leaves have a stomatal structure. Finally, fluorescence techniques can be used to examine the function of the stomatal membrane to determine whether the stomata of the epidermal cells of onion scale leaves are able to properly regulate the flow of gases.

Fellow, I really didn't understand, I can be more specific.

I am, onion scale leaf epidermal cells have stomata. Stomata is a special structure of plant cells, which can regulate the gas exchange of plants, thereby regulating the photosynthesis and respiration of plants. The stomata of the epidermal cells of onion scale leaves are made up of a special structure called a "stomatal membrane", which regulates the flow of gases and thus the photosynthesis and respiration of plants.

The stomatal membrane is made up of a protein called a "stomatal membrane protein", which regulates the size of the stomata and thus the gas exchange in plants. In addition, the stomatal membrane can also regulate the temperature and humidity of the plant, thus protecting the plant from the bright section environment. Therefore, the stomata play a vital role in the growth and development of plants.

1.Cell wall.

2.Nucleus.

3.Cytoplasm.

4.Vacuole.

Onion (scientific name: allium cepa), also known as ball onion, shallot, jade onion, shallot, Dutch onion, bark tooth, etc., lily family, allium is a biennial herbaceous plant. Onions contain prostaglandin A, which can reduce peripheral vascular resistance and blood viscosity, which can be used to lower blood pressure, refresh the mind, relieve stress, and prevent colds.

In addition, onion can also remove oxygen free radicals in the body, enhance metabolism, anti-aging, prevent osteoporosis, and is a health food suitable for middle-aged and elderly people.