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mihalych1998 [28]
4 years ago
8

Which kinds of proteins are needed for most cellular activities? a.enzymes b.sugars c.nucleic acids d.amino acids

Biology
2 answers:
Anika [276]4 years ago
7 0

c is the way to go mann




stepan [7]4 years ago
7 0

Answer:

A) enzymes

Explanation:

Enzymes are the molecule that regulates and controls the rate of their chemical reactions in the cell. More of the enzymes also speeds up the cellular activities. Hope this helps.

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Select the endocrine organ from the drop-down menu that matches with its hormone.
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Answer: The options were missing, but the endocrine organs that secret each gland are:  

Pituitary gland: Thyroid-stimulating hormone

Pituitary gland: Adrenocorticotropic

Hypothalamus: Gonadotropic

Pituitary gland: Prolactin

Pituitary gland: Growth hormone

Thyroid gland: Thyroxine

Thyroid gland: Calcitonin

Thyroid gland: Triiodothyronine

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Adrenal gland: Mineralocorticoids

Adrenal gland: Epinephrine

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Thymus gland: Thymosins

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Explanation:

  • The pituitary gland, also known as the hypophysis, produces the thyroid-stimulating hormone, the adrenocorticotropic, prolactin, and growth hormone. The hypophysis has two parts, the anterior one and the posterior one. The anterior one secretes these hormones thanks to the action of hormones that comes from the hypothalamus.
  • The hypothalamus, which is a gland that is in the brain, produces:

gonadotropic, antidiuretic, and oxytocin. Once produced, they are stored and secreted by hypophysis. In this case, these hormones are in the other portion of the hypophysis, the posterior part. The hormones act in the reproductive system.

  • The thyroid gland, which is in the neck, produce and secretes:

thyroxine, calcitonin, and triiodothyronine. The calcitonin controls calcium concentration, while the thyroxine and triiodothyronine impact the cells' metabolism.

  • The adrenal gland is above the kidneys. It secretes Glucocorticoids, Epinephrine, and Mineralocorticoids. The mineralocorticoids regulate the concentrations of water and salt in our body; glucocorticoids have many functions, one is fighting inflammation; lastly, epinephrine, also known as adrenaline, is released in a fight or flight reaction.
  • The pancreas is an organ and a gland. As a gland, it secretes glucagon and insulin to regulate the concentration of glucose in the blood.
  • The pineal gland is on the brain. This gland secretes melatonin, which is a hormone that helps us to sleep.
  • The thymus gland is in the chest, and it produces a hormone called thymosin. This hormone helps in the production of leucocytes, which the thymus produces.

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Answer:

Why would a plant cell have a chloroplast while an animal cell wouldn't? Chloroplasts are used to make food through photosynthesis. Plant cells make their own food, while animals do not.

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