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2021-05-14

Which part of the cell is the organelle that functions as its control center?

Which part of the cell is the organelle that functions as its control center?

nucleus

What is the function of each organelle?

What’s found inside a cell

Organelle Function
Nucleus DNA Storage
Mitochondrion Energy production
Smooth Endoplasmic Reticulum (SER) Lipid production; Detoxification
Rough Endoplasmic Reticulum (RER) Protein production; in particular for export out of the cell

Is the nucleus an organelle?

​Nucleus. A nucleus is a membrane-bound organelle that contains the cell’s chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.

Who found nucleus in cell?

The nucleus was also described by Franz Bauer in 1804 and in more detail in 1831 by Scottish botanist Robert Brown in a talk at the Linnean Society of London.

Do onion cells have a nucleus?

Onion Cell An onion is a multicellular (consisting of many cells) plant organism.As in all plant cells, the cell of an onion peel consists of a cell wall, cell membrane, cytoplasm, nucleus and a large vacuole. The nucleus is present at the periphery of the cytoplasm.

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Do elodea cells have a nucleus?

This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell.

Do onion cells have Chromoplasts?

Similarly, do onion cells have chloroplasts? Onion cells do not have chloroplasts becausethe onion is underground (where there is nolight). Without light, chloroplasts have no purpose. The green leaves and stem of an onion plantare normally exposed to daylight and so havechloroplasts, but the onion does not.

What is the specialized structure of onion?

The onion plant has a fan of hollow, bluish-green leaves and its bulb at the base of the plant begins to swell when a certain day-length is reached. The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem.

What is in an onion?

Onions contain decent amounts of vitamin C, folate, vitamin B6, and potassium, which provide a number of benefits.

What are the layers of an onion called?

7 Answers. They are called scales – outer ones are membranous and inner ones fleshy. The protective thin outer covering is called tunic. We peel the skin off the onion, then after that, we peel layers of the onion.

What does Onion mean in Latin?

unio

What does Onion mean?

Summary of Key Points

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ONION
Definition: Ounce (drugs)
Type: Slang Word (Jargon)
Guessability: 4: Difficult to guess
Typical Users: Adults

What is the scientific name for onion?

Allium cepa

Where does the onion originate from?

central Asia

Is Onion a vegetable or fruit?

Vegetables are usually grouped according to the portion of the plant that is eaten such as leaves (lettuce), stem (celery), roots (carrot), tubers (potato), bulbs (onion) and flowers (broccoli). A fruit is the mature ovary of a plant. So a tomato is botanically a fruit but is commonly considered a vegetable.

Who introduced onion to India?

Vegetable origins

Vegetable Hindi name Notes
Lemon Neembu Lemon seeds found in the Harappan Bara culture excavations indicate time of spread
Okra Bhindi
Onion Pyaaz Mentioned in the Charaka Samhita
Potato Aloo Likely introduced by Portuguese traders

Is celery related to Onion?

The allium genus of the liliaceae family, however, contains some very tasty members that are staples in many cuisines the world over. Onions are part of the mirepiox (celery, carrots and onions) in traditional French cuisine, as well as the “holy trinity” (bell peppers, onions, celery) in Cajun cuisine.

Why celery is bad for you?

Dieters should be careful not to overdo it on celery because it is so low-calorie and could lead to malnutrition. And while fiber is great for you, too much can cause bloating, gas and diarrhea. According to SF Gate, if eaten in very large, continuous, uncooked quantities, celery could potentially cause goiters.

Is any part of celery poisonous?

ANSWER: Celery leaves are not poisonous, but edible and nutritious in small amounts. If you were to eat multiple pounds of celery leaves every day, you might be affected by the toxic compounds that exist within the plant in minuscule amounts.

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Where does celery grow naturally?

Wild celery grows in wet places over Europe, the Mediterranean lands, Asia Minor, the Caucasus, and southeastward toward the Himalayas. It is believed to have originated in the Mediterranean area. Chinese writings of the 5th century after Christ mention it.

What does celery do for you sexually?

Including more celery in your diet can also bring a spark back to your sex life. Eating celery can increase the pheromone androsterone, which is a natural aphrodisiac found in male perspiration. Celery also contains chemicals that can help dilate blood vessels, increase sex drive, and enhance climax.

Where does celery grow best?

But the good news is you can start picking the stalks whenever you want. Young celery is as good as — or better — than the mature product. Celery is not very frost-hardy, so select a variety that is suited to your climate – and get an early start. It grows best in full sun, but part shade is acceptable.

Why are my celery stalks so thin?

Lack of water– Another reason for skinny celery stalks may be a lack of water. The vegetable does not do well in hot weather and this too may affect stalk production and girth. Insufficient fertilization– The vegetable also needs significantly rich organic matter for vigorous production.

Should I let my celery flower?

Celery is a biennial plant. That means that it won’t flower until the second year and you certainly can’t start harvesting celery seeds until then. During the wait for seed bearing flowers, you can harvest the flavorful stalks, just don’t take the central stalk which is where the flower will form.