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3 years ago

The phospholipid molecule has two parts, the polar end and the bipolar end.

Biology

1 answer:

Alex787 [66]3 years ago

3 0

False. The statement is correct only in part

The phospholipid molecule is simply bipolar, that is it has two ends that are opposed to each other in their characteristics.

This phospholipid molecule is said to be amphipathic which simply means it has both a hydrophilic and hydrophobic component.

The hydrophilic end, which is water loving, is the "head" of the molecule and is made of a phosphate group. The hydrophobic end which means water hating or fearing is the "tail" of the phospholipid and is made of two chains of fatty acids.

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An active marine predator is found possessing these characteristics: a series of tentacles (modified from the foot), a highly de

AfilCa [17]

Cephalopoda

Explanation:

Cephalopods are commonly known as inkfishes.

But cephalopods are not at all fishes. They are molluscs.

They belong to Class Cephalopoda of phylum Mollusca.

Like other molluscs, these are also soft bodied, but have a series of tentacles that actually developed from theprimitive foot.

Cephalopods have a well developed nervous system and have large bulging eyes.

Examples of cephalopods are, octopus, giant squid etc.

Considering all the above characteristics, we can conclude that the predator stated in the question is most likely to belong to the clade cephalopoda.

8 0

4 years ago

Plz help me with this

allsm [11]

Answer:

Solutions are formed when the water's polar molecules separate the polar molecules of an ionic or molecular compound

Explanation:

Water can hydrogen bond to other molecules due to the O-H bond present in water with partial charges. Water can form hydrogen bonding with other polar molecules. The answer would hence be Solutions are formed when the water's polar molecules separate the polar molecules of an ionic or molecular compound(because polar water dissolves polar molecules in between their interactions).

6 0

2 years ago

Oxygen and carbon dioxide pass through the plasma membrane by _____.?

Alexandra [31]

The correct answer should be Diffusion.

5 0

3 years ago

Read 2 more answers

Help me please!!!!!!!!

valkas [14]

Answer:

1. process A

Explanation:

2. process B

3. valine

4.mutation

6 0

3 years ago

Which gland produces T3 and T4?

Leokris [45]

Answer:

1. The gland that produces T3 and T4 is the thyroid (first option).

2. True. The adrenal gland produces and allows the secretion of the hormone involved in the fight and flight response.

3.The symptom that is not correctly matched with the organ system is joint pain, which is related to the joint system, not the skeletal system.

4. False. Negative feedback loop inhibits the production and release of hormones.The symptom that is not correctly matched with the organ system is Joint pain - skeletal system

Explanation:

1. Thyroid gland is a small organ of no more than 30 grams found in the neck, in front of the trachea. This gland produces thyroglobulin, which when joined with iodine can synthesize triiodoythyronine (T3) or thyroxine (T4).

The main function of the thyroid gland is the regulation of organic metabolism, while it can also mediate the body's response to other hormones.

2. Adrenal gland is located in the upper pole of each kidney and is responsible for the secretion of several substances that help with the body's activity.

In the gland's marrow, a substance called adenaline is produced, with properties such as hormone and neurotransmitter, one of the main substances produced to deal with stress and the adaptation response called fight and flight.

The adrenaline produced in the adrenal medulla can strengthen muscles, increase heart rate and blood pressure, and increase the body's resistance to the presence of stressors or threats to physical integrity.

3. Joint pain is related to inflammation of the joint soft tissues, which belong to the joint system. Unlike joint pain, bone pain occurs as a result of injury to the periosteum -the thin membrane that covers the bones- which is related to the skeletal system.

Painful inflammation of the joints is called arthritis, and is one of the main causes of disability to perform normal body movements.

4. Feedback is a control mechanism of the endocrine system. Negative feedback loop occurs in response to a stimulus, resulting in the inhibition of mechanisms that promote the synthesis and release of substances.

An example of negative feedback is the sufficient production of thyroid hormones, which sends a signal to the hypothalamus, which in turn inhibits the production of TSH - thyroid stimulating hormone - at the level of the pituitary gland. If the pituitary does not release TSH, production of thyroid hormones ceases.

Learn more:

Thyroid feedback loop brainly.com/question/4967372

4 0

3 years ago