All categories

2 years ago

Are GM foods sufficiently regulated in the United States?

1 answer:

6 0

Genetically engineered foods<span> are no different than natural foods, and therefore they don't need to be labeled or </span>regulated<span> any differently.</span>

You might be interested in

3. Large molecules and wastes move<br> through the membrane through

madreJ [45]

Answer: Large molecules and wastes move through the membrane through forms of active transport- endocytosis and exocytosis.

Explanation:

Molecules are moved across the cell membrane via different mechanisms like diffusion, facilitated diffusion and passive transport; however, some very large molecules require specialized types of active transport to cross over- these are endocytosis and exocytosis.

During endocytosis large molecules cells and cell fragments moved across the plasma membrane through a process of <em>invagination;</em> piece of the external cell membrane falls into itself and forms a small pocket that surrounds the target molecule this breaks off from the membrane to form an intracellular vesicle. Different methods of endocytosis such as <em>phagocytosis, pinocytosis </em>and receptor-mediated <em>endocytosis</em>, take in cells, water and targeted substances respectively.

Like endocytosis, the particles (signal proteins, neurotransmitters and waste material) are surrounded by a phospholipid membrane. However, in exocytosis, this membrane is formed in the cytoplasm, and merges with the plasma membrane’s interior in a process <em>opposite to </em>endocytosis; material is removed from the cell and exported into the cell’s exterior called the extracellular space.

6 0

3 years ago

What modern day practice helps prevent an inadequate production of thyroid hormones?

Mama L [17]

Iodized salts helps to prevent an inadequate production of thyroid hormones .

<h3>What is iodized salts ?</h3>

Iodized salt is a table salt . it is a mixture of very little amount of sodium iodide and potassium iodide .

It helps to prevent iodine deficiency .

It is a micronutrient and dietary mineral that is naturally present in the food supply .and also it is a heavy element .generally found near sea coasts .

Iodine deficiency disease includes hypothyroidism .

<h3>What is hypothyroidism ?</h3>

It occurs due to less secretion of thyroid hormone caused by iodine deficiency .it causes stunted growth . it shows low rate of metabolism .

Hypothyroidism includes diseases like myxoedema or gull's disease , cretinism .

Inadequate supply of iodine in diet causes enlargement of the gland known as simple goitre.

<h3>Thyroid hormones :</h3>

It is secreted by endocrine glands known as thyroid gland . it includes two types of hormones known as thyroxine and calcitonin .

Thyroxine is an iodine containing hormone known as tetra-iodothyroxine(80%) and tri-iodothyroxine (20%).

calcitonin is secreted from thyroid gland and is polypeptide hormone .

Learn more about thyroid hormones here:

brainly.com/question/9251938

#SPJ4

4 0

1 year ago

PLEASE HELP ME <br> What are the steps to photosynthesis

RoseWind [281]

Explanation:

During photosynthesis, molecules in leaves capture sunlight and energize electrons, which are then stored in the covalent bonds of carbohydrate molecules. That energy within those covalent bonds will be released when they are broken during cell respiration. How long lasting and stable are those covalent bonds? The energy extracted today by the burning of coal and petroleum products represents sunlight energy captured and stored by photosynthesis almost 200 million years ago.

Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis. Because they use light to manufacture their own food, they are called photoautotrophs (“self-feeders using light”). Other organisms, such as animals, fungi, and most other bacteria, are termed heterotrophs (“other feeders”) because they must rely on the sugars produced by photosynthetic organisms for their energy needs. A third very interesting group of bacteria synthesize sugars, not by using sunlight’s energy, but by extracting energy from inorganic chemical compounds; hence, they are referred to as chemoautotrophs.

6 0

3 years ago

Read 2 more answers

What evolutionary development allowed plants to grow tall? see concept 29.3 (page 626)?

aivan3 [116]

If your choices are the following:
<span>A. rhizoids
B. sporophylls
C.leaves
D.the waxy cuticle
E. lignified vascular tissue

Then the answer is E.</span>

4 0

3 years ago

7. Shivering is one way to maintain a stable external environment.<br><br> TRUE or FALSE ?

Inessa05 [86]

Answer:

True!

Explanation:

I hope it helped you!!

8 0

2 years ago