What are the effects and functions of peaches? Efficacy and function of peaches: peaches are juicy and rich in iron, which can increase the amount of hemoglobin in human body. The ancients said that eating peaches often can "benefit the face".

Peaches are mild in taste and contain many vitamins, fruit acids and inorganic salts such as calcium and phosphorus. Its iron content is 4~6 times that of apples and pears. Peaches have the functions of nourishing qi and blood, nourishing yin and promoting fluid production. Peach has high iron content and is an ideal supplementary food for patients with iron deficiency anemia.

Peaches are rich in nutrients, in which the energy per 100g edible part of peaches is 1 17.2-7.7kJ, and the protein content is about 0.8g. Fat 0.1g; Various sugars10.7g, calcium 8mg, phosphorus 20mg, iron10mg, and provitamin A (carotene) 60mg. Vitamin B 1 30 μ g, vitamin B2 20 μ g, nicotinic acid 0.7 mg, vitamin C6 mg, other vitamins, malic acid and citric acid.

The main component of peach is sucrose, but the contents of vitamins and minerals are less, but there are a lot of pectin which belongs to fiber component and has the function of whole intestine. Peach is used as Chinese medicine because its flower buds contain glycoconjugates, which are quite effective for diuresis or constipation. Taoye County is said to be used for bathing and removing prickly heat.

2. Little scientific knowledge

▲ What is the most on the tree? A: The largest tree in the world: it is a giant fir in California, USA.

Up to 100 m; At the height of 1.5m above the ground, the trunk circumference is 34.1m. The tallest tree in the world: Sequoia.

It was measured earlier that 1964 was 1 12m. The name is General Sherman Terry.

Third, the smallest tree in the world: the willow tree (also called grass tree) in the north is only 2 cm high. The oldest tree in the world: Cryptomeria japonica, dating back to 5200 BC, is 7 179 years old.

5. The thickest tree in the world: near Etta, Italy, it is called White Horse Tree. This tree grows 62 meters a week. 6. The oldest tree in the world: Ginkgo biloba (also known as Ginkgo biloba) existed as early as1600,000 years ago.

▲. Why can trees grow so tall? A: Because trees grow all year round, although many grasses will wither in winter, they will still grow. In addition, trees will grow as long as they are alive, and many older trees will grow very tall. ▲. Why do flowers fall at a specific time? A: The petals fall and bear fruit.

After the pistil is pollinated, the ovary at the bottom slowly expands and becomes bigger, and this branch will grow into the future fruit, but the fruit can only begin to grow after the petals fall. ▲. What are the five elements of plant life? A: The five elements of plant life are sunlight, temperature, moisture, air and nutrients, which are the lifeline of plants.

Temperature has great influence on the growth and development of plants. Plants need different and definite suitable temperatures at different growth time and development stages; Water is an important part of plants; Oxygen, nitrogen and carbon dioxide in the air have great influence on the life of plants; Plants need a variety of nutrients, including carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, sulfur, magnesium, iron and other elements 10.

▲. Why are black flowers rare? A: The color of flowers mainly depends on carotenoids and anthocyanins contained in flower cells. Black flowers are rare, and besides the pigment of flowers, they also have a lot to do with sunlight.

Flowers are tender and susceptible to high temperature, so they generally absorb less heat from blue-violet light and reflect red-orange light; If you absorb more heat from red and orange light, it is easy to get high temperature, which is why there are fewer blue and purple flowers. If a flower absorbs all the seven-color light waves, it will suffer more damage, so it is difficult to survive, so that is why there are few black flowers.

▲. What is grain? A: There are usually two kinds of sayings: one is rice, millet, millet, wheat and glutinous rice. On the other hand, millet, millet, hemp, wheat and glutinous rice.

Five of them are food crops other than marijuana. Rice, millet, millet, wheat, water bamboo and hemp are the traditional crops in China. I should not only know them, but also know their habits and origins, otherwise it will be "no matter what the grain is."

▲. Why is the lower segment of sugarcane sweeter than the upper segment? Answer: Because sugar cane needs to consume nutrients continuously during its growth. Small sugar cane is not sweet from top to bottom.

After growing up, on the one hand, the sugar produced increases, on the other hand, the nutrients consumed decrease, and the excess sugar is stored in the lower part of sugarcane. Therefore, the lower segment of mature sugarcane is sweeter than the upper segment.

In addition, because the photosynthesis of sugarcane leaves needs a lot of water, the water in sugarcane itself is mostly near the leaves, but less in the roots, so the sugar concentration in the roots is higher, so the lower part of sugarcane is sweeter than the upper part. ▲. How are green tea and black tea made? A: Black tea is made by fermentation.

Green tea is made without fermentation, but fresh tea leaves are poured into a dark red iron pot and quickly stir-fried. The chlorophyll of tea processed in this way is not destroyed and becomes green tea.

▲. Why are mimosa "shy"? Plants are often attacked by storms. Mimosa has formed a special self-protection ability in the process of long-term adaptation to the environment. As soon as it meets the first drop of rain and the first gust of wind, it closes its leaves to reduce the area damaged by the storm. ▲. Why do flowers have all kinds of colors? The color of most flowers varies between red, purple and blue.

This is because there is a "chameleon" in the petals-anthocyanin. Anthocyanins can change different colors according to the pH of the soil and the temperature of the surrounding environment.

The color of some flowers can change between yellow, orange and red because their petals contain carotene. ▲. Why are some plants poisonous? A: In the long-term unremitting struggle for existence, plants have formed various methods to protect themselves and defend against animal injuries.

Toxins are the most effective defense weapons for plants. When plants are harmed by animals, toxins can also cause fatal harm to animals.

Animals that die from eating certain plants are the best warning to other animals. They will be more careful to prevent poisoning. ▲. Why don't the seeds germinate after being cooked? Answer: Because after the seeds are cooked, the embryos responsible for absorbing water and nutrients in the body will die and the nutrients in the seeds will be destroyed, so the seeds will lose their vitality, so the cooked seeds will not germinate.

▲. Why is it not sweet when it rains more? Answer: Because melons and fruits are mainly sugar except water. If there is more rain during their growth, it will be difficult for plants to get enough sunlight, and leaves will not be able to make more sugar, so there will be less sugar stored in fruits. Without sugar, melons and fruits are not sweet.

▲. Why can leeks grow again after being cut? Answer: Because leek is a perennial plant, its root is a conical bulb, which is particularly rich in nutrients and can keep growing new leaves. After the leaves on the ground are cut off, new leaves will arch out of the soil.

▲. Why can flower arrangement and sugar prolong life? A: In the process of plant growth, through photosynthesis, plants can produce sugar to meet their own growth and flowering needs. After picking flowers, the original sugar can't meet the needs of flowering because of the thin pedicel.

Putting some sugar in a vase can make a nutrient solution, which can prolong the life of flowers. Why fruit is spherical ▲. In autumn, the trees are full of fruits: peaches, apples and walnuts.

If you are good at observing, you will find that they are all approximately spherical. Why is the fruit spherical? It is generally believed that round fruits can withstand wind and rain.

Because the shape is round, the force of wind and rain is relatively small; In addition, spherical water.

3. How to write the composition of Peach Tree?

It tastes crisp and sweet.

It was not until August and September that peaches really matured. In July, Zaotao went on the market. It is green and red. Take a bite. My hometown is in Ningbo. This is a beautiful scenery. It looks like an enlarged chicken heart. Gently peel off the thin peach skin. Bite, hard and astringent, can't help sticking out your tongue.

Before six o'clock.

Spring leaves and summer comes, and the tender red branches are covered with green peaches, which is famous far and near.

In early spring and March, peach trees are smiling everywhere. In the sunshine, pink peach blossoms are like dazzling Xia Hong. They are gorgeous, refreshing and thirst-quenching. The more you eat, the more you want to eat Take a bite of a rich city, and water will suddenly seep into your heart, as big as an adult's fist. Choose one. As long as the fluff is washed with clean water, it will be as big as our fists, and it will be covered with thin and soft fluff.

Try it if you don't believe me.

Step 4 solve scientific common sense

This is lime water.

First, lime has a certain bactericidal and insecticidal effect, which can kill some overwintering fungi, bacteria and pests parasitic on tree trunks. In winter, some pests on trees will drill underground for the winter. If you apply lime in autumn, it won't come down, and you will freeze to death in winter. Brush it again next spring, and insects that hibernate underground will not easily climb up the tree to do harm. Because lime will dehydrate insects to death, they will all stay away. But flying pests are useless.

Second, in winter, the temperature is very low at night; During the day, due to sunlight, the temperature rises, the trunk is dark brown, which is easy to absorb heat, and the temperature of the trunk also rises rapidly. This makes the trunk easy to freeze and crack. Especially for big trees, the trunk is thick, the color is dark, the tissue toughness is poor, and it is easier to crack. After limewater is applied, because lime is white, it can reflect 40%-70% of sunlight, so the temperature of the trunk has little difference between day and night, and it is not easy to crack.

For the sake of beauty, brush the height of white ash evenly.

5. Encyclopedia of first-year scientific knowledge

Small scientific knowledge

1. Rabbits beat the ground with their legs to send messages. Most of them beat the ground with their hind legs, which is a way for them to express their feelings to the female rabbits.

2. The biggest monkey in the world is a baboon and the smallest monkey is a bonobo.

3. The real name of "Four Elephants" is Elk, which is a rare animal in China.

4. Why does sorbet get angry?

The reason why sorbet bubbles is because there is a lot of invisible water vapor in the outside air. When it comes to cold sorbet, it will liquefy into droplets when it is cold. It seems that the sorbet is bubbling.

5. Why do sunflowers always face the sun?

Sunflower stems contain a wonderful auxin. This auxin is very afraid of light. When it is illuminated, it will go to the backlight side, and the cells on the backlight side will multiply rapidly. Therefore, the backlit side will grow faster than the bright side, which will bend the sunflower to light.

6. What are the first-year compositions about scientific knowledge?

The science around you

There is so much science around us.

When it rains and thunders, we should not hide under the big tree, because it will be struck by lightning.

Yes

Don't eat too much food when you sleep, otherwise you will get indigestion and affect your health.

Why are the ripples of water round?

Because the ripples on the water surface come from the same speed.

Spread around, so after a period of time, those spreading ripples

It turned into a circle.

Let's love science, learn science, use science, and let science grow up with us healthily!

7. There is little scientific knowledge about animals

Persimmons can't be eaten with crabs. 1) Rabbits beat the ground with their legs to transmit information, mostly with their hind legs, which is a way for them to express their feelings to female rabbits. (2) The largest monkey in the world is a baboon, and the smallest monkey is a bonobo. (3) Dogs wag their tails when they are happy. When they are angry, they straighten their tails backwards. Dogs only pick up their tails. (4) The leopard grinds its claws on the tree. The stag rubbed its horns on the trunk to sharpen them. Wild boars often grind their teeth on trees. (5) Polar bears wear thick white fur coats. Seals and walruses have thick fat to keep their bodies warm. (6) "Four Elephants", whose real name is Elk, is a rare animal in China. The origin of plants was 2.5 billion years ago.

It was not until 438 million years ago (Silurian) that green algae got rid of the shackles of water environment, landed on the earth for the first time, evolved into ferns, and clothed the earth with green clothes for the first time. 360 million years ago (Carboniferous), pteridophytes were extinct, replaced by lycopodium, wedge-shaped, true ferns and seed ferns, forming a swamp forest.

The main plants of Paleozoic were almost completely extinct 248 million years ago (Triassic), while gymnosperms began to rise and evolved pollen tubes, completely getting rid of the dependence on water and forming dense forests. Angiosperms (flowering plants) began to appear 1.45 million years ago (Cretaceous), and developed rapidly in the later period, replacing gymnosperms and forming the angiosperm era that continues to this day.

Modern types of pine, cypress, and even Metasequoia, Sequoia and so on. , are produced in this period. Characteristic plants have the ability of photosynthesis-that is, they can produce food by using water, minerals and carbon dioxide with the help of light energy and chlorophyll that animals do not have.

After releasing oxygen, glucose, an energy-rich substance, remains as a component of plant cells. Plants have obvious cell walls and nuclei, and the cell walls are composed of glucose polymer-cellulose.

The ancestors of all plants are single-celled non-photosynthetic organisms. They devour photosynthetic bacteria and form a mutually beneficial relationship: photosynthetic bacteria live in plant cells (the so-called endogenous phenomenon). Finally, bacteria become chloroplasts, which are organelles that exist in all plants but cannot survive independently.

Plants are usually inactive because they don't need to look for food. Most plants belong to angiosperms, which are flowering plants, including many kinds of trees.

The longest plants on land are in the tropical forests of Africa, where there are towering trees, exotic flowers and plants, and there are also "ghost ropes" that trip you. This is a white rattan wrapped around the tree for countless times. White rattan, also called provincial rattan, is also produced in Yunnan, China.

Rattan chair, rattan bed, rattan blue, rattan bookshelf, etc. Are made of rattan as raw materials. Rattan stems are usually very thin, as thick as a small handleless wine cup, and some are thinner.

It has a cluster of pinnate leaves at the top, and there are thorns on the leaves. The upper part of the stem is long and strong until the tip of the stem, and it is covered with large, pointed downward-bending spines.

Like a barbed whip, it swings with the wind. As soon as it touched the big tree, it clung to the trunk and soon grew a bunch of new leaves. Then it continued to climb along the trunk, while the leaves below gradually fell off.

After climbing to the top of the tree, the white rattan kept growing, but there was nothing to climb, so its longer and longer stems hung down, and the tree was regarded as a pillar and wound around it into countless strange circles. Rattan is 300 meters long from root to top, which is twice as long as the tallest eucalyptus in the world.

If the tallest tree holds the World Tree Height Competition, only Australian almond eucalyptus will be eligible to win the championship. Almond eucalyptus is generally as high as 100 m, and one tree is as high as 156 m. Its trunk soared into the sky, reaching 50 stories.

This is the tallest tree that man has ever measured. Birds are singing at the top of the tree, which sounds like the buzzing of mosquitoes under the tree.

This kind of tree is 30 meters long around the base, with straight trunk, obviously tapering upward, and dense branches and leaves at the top. The leaves are strange. Generally, the surface of a leaf is facing the sky, but its side is facing the sky, like hanging on a branch, parallel to the projection direction of sunlight.

This strange appearance is to adapt to the dry climate and strong sunshine, reduce direct sunlight and prevent excessive evaporation of water. The tallest broad-leaved trees in China-Wangtian Tree and Qingtian Tree. In the tropical dense forest of Xishuangbanna, Yunnan Province, China, a huge giant tree was discovered in the 1970s. Its graceful posture and tall trunk hold its head high above all the trees, making it impossible for people to look up at its top, and even the sensitive altimeter can't help here.

Therefore, people call it a tree looking up to heaven. The local Dai people call it an umbrella tree.

Looking up at the sky, trees can generally reach 60 meters. People have measured and analyzed a tree and found that it grows quite fast. A 70-year-old tree is 50 meters high.

Individual even as high as 80 meters, DBH is generally around 130 cm, up to 300 cm. These rare giant trees in the world stand in the upper layer of the valley rainforest, which is generally more than 20 meters higher than the trees on the second floor. They really have the momentum to go straight into the sky! Wangtianshu belongs to Dipterocarpaceae, Lu 'an.

Liu An belongs to this family, 1 1 members, and most of them live in Southeast Asia. Wangtianshu only grows in Yunnan, China, and is a rare and special tree species unique to China.

The tree is tall and straight, with alternate leaves, pinnate veins and yellow flowers arranged in panicles, emitting a fragrance. Its fruit is hard.

Cephalotaxus chinensis generally grows in 700- 1000 meters of valley rain forest and mountain rain forest, forming an independent community type and displaying a unique natural landscape. Therefore, the academic community regards it as a symbolic tree species of tropical rain forest.

Wangtianshu has excellent material, fast growth and high productivity. The trunk volume of a tree can reach 10.5 cubic meter, and the average annual growth of a single tree is 0.085 cubic meter, which is 2-3 times that of other tree species in the same forest. Therefore, it is an excellent tree species worth popularizing.

At the same time, its wood is rich in gum, its flowers contain perfume oil and many other unknown components, which need further analysis and utilization. Because the tree of looking up to heaven has such characteristics.