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eduard
3 years ago
5

Receptor is on plasma membrane a. peptide b. steroid

Biology
1 answer:
ella [17]3 years ago
4 0

Answer:

a. Peptide hormone.

Explanation:

Hormones can be categorized into two groups based on their binding with the receptors. Some hormones bind to the membrane receptors because they cannot cross the phospholipid membrane. These hormones are peptide or protein hormones. Example is insulin hormone. They bind to exterior or membrane receptors and activate one or more secondary messengers for the physiological change. The other group of hormones are steroid and thyroid hormones which can easily cross the membranes. So they bind to the intra-cellular receptors or they enter nucleus and bind to the DNA for bringing the physiological change.

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OKEASE HELP WILL GIVE BRAINLIEST
Keith_Richards [23]

The correct answer is: A. the same traits

Homologous chromosomes come in pair: one inherited from the mother and one inherited from the father. They have the same genes in the same loci, meaning that those genes code for the same traits. But, variants of those genes-alleles can be different e.g. one recessive one dominant). During the meiosis (cell division of gametes) homologous chromosomes align correctly with each other before separation.

Thank You!

Answered by: FieryAnswererGT

#learnwithbrainly

8 0
2 years ago
What structure stimulates the male penis during intercourse? please help.
UkoKoshka [18]
I think the answer will be C (Uterus).
6 0
3 years ago
When an LDL particle is taken up by the cell, what impact will this have on the regulation of de novo cholesterol synthesis?
Alexxx [7]

Answer:

C. HMG-CoA reductase will be dephosphorylated

Explanation:

When a low density lipoprotein particle is taken up by the cell, the impact it will have on the regulation of de novo cholesterol synthesis will be HMG-CoA reductase being dephosphorylated.

HMG-CoA( 3-hydroxy-3-methyl-glutaryl-CoA reductase) is an enzyme which aids the synthesis of lipids. When the lipids are produced and taken up by the cells then the effect of the synthesis stops to avoid excess synthesis and to allow for the action of enzymes which will act ok them in the cells . This is why it leads to a dephosphorylation of the enzyme which stops the action.

4 0
3 years ago
Identify the nine cell structures that are labeled in the animal cell diagram given below. Provided below is a word bank; some o
loris [4]

A. The right answer is Rough endoplasmic reticulum

The granular endoplasmic reticulum is the place of synthesis (in the associated ribosomes) of the proteins secreted outside the cell and of the proteins and lipids constituting the membranes of the cellular organelles. Golgi, lysosomes, mitochondria, nucleus, ribosomes, vesicles ...). It participates in the correct folding of the proteins that have just been synthesized.


B. The right answer is Cytoplasm.

The cytoplasm corresponds to the medium found inside the cells. It is therefore delimited by the plasma membrane and contains within it, in eukaryotes, the nucleus, but also all intracellular organelles (ribosomes, endoplasmic reticulum, Golgi apparatus, mitochondria, various plastids, etc.).


C. The right answer is Smooth endoplasmic reticulum.

The endoplasmic reticulum is a eukaryotic cell organelle. He can be :

* granular (REG), that is to say associated with ribosomes that constitute the "granules";

* or smooth (REL).

The smooth endoplasmic reticulum participates in cellular metabolism, synthesizing lipids and storing calcium.


D. The right answer is Nucleolus

The nucleolus is the site of the transcription of ribosomal RNAs (rRNA) by the enzyme RNA polymerase I. These rRNAs (18S, 5.8S and 28S) will be used in ribosome production by associating with ribosomal proteins, a process that which is also facilitated by the factors contained in the nucleolus.


E. The right answer is Nucleus.

The nucleus contains the nuclear genome, consisting of DNA. DNA, bound to proteins, takes two forms, more or less condensed:

* euchromatin: less compacted, genes can be expressed;

* the heterochromatin: more compacted, on the periphery of the nucleus, the genes are extinguished or little expressed.

The nucleus is the main site of DNA synthesis (during replication for cell division) and RNA (for transcription).

The nucleus also contains a particular structure, the nucleolus, the locus of transcription of ribosomal RNAs.


F. The right answer is Mitochondria.

Mitochondria are small organelles (about 1 micrometer in length) essential in cellular energy processes.

The set of reactions that provides energy within the mitochondria constitutes cellular respiration.

Mitochondria are formed of an outer membrane, an inner membrane with many folds or ridges and a matrix which is the space between the folds of the inner membrane.


G. The right answer is Golgi apparatus.

The Golgi apparatus is an organelle of eukaryotic cells.

It is a major site for the transfer and sorting of molecules, as well as the synthesis of glycoproteins and sphingolipids.

By its position, between the endoplasmic reticulum and the plasma membrane, and its function, it is the intermediate between the maturation and the secretion of the proteins elaborated in the reticulum, it regulates the vesicular transport and is responsible for modifying the proteins by glycosylation, sulfation, etc.


H. The right answer is Lysosomes.

Lysosomes are 0.2 to 0.5 micron cell organelles present in the cytosol of all eukaryotic, animal cells, with the exception of erythrocytes ("red blood cells"). Their function is to carry out intracellular digestion (or extracellular digestion via exocytosis in the case of chondroblasts, osteoclasts and macrophages) thanks to about forty enzymes.


I. The right answer is Cell membrane.

The cell membrane delimits the cell. It separates the inside of the cell (the cytoplasm) from the outside environment. It is composed of phospholipids, between which proteins are inserted. Unlike the membranes of bacteria and plant cells, those of animal cells contain cholesterol molecules, which stiffens them and increases their impermeability to hydrophilic molecules.

5 0
3 years ago
Read 2 more answers
Why do we need to wash our hands before eating and after using washrooms?
Dmitry_Shevchenko [17]
Because bacteria could get on our hands through out eyes, ears, mouth, or nose (since all of which is noted to be connected to one another) and it could make you extremely sick. Although some bacteria is good for you, an extreme amount can make you extremely sick.
For example, you can contract ecoli and if that's not treated it can be fatal because you lose a ton of fluid and nutrients! Good luck, rockstar. I hope this is what you were looking for, and you pass! (:
8 0
3 years ago
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