Question

1. Which of the following can be found outside of a cell's membrane? (Choose ALL correct...

1. Which of the following can be found outside of a cell's membrane? (Choose ALL correct answers)

A. cytoskeletal proteins

B. Extracellular matrix carbohydrates (polysaccharides)

C. extracellular side of membrane proteins

D. Extracellular matrix proteins2

2. Which types of molecules can act as signaling molecules? (Choose ALL correct answers)

A. neurotransmitters (small molecules)

B. proteins

C. lipids

3. In order for a cell to receive a signal (such as a hormone), what does it have to have? (Choose ALL correct answers)

A. a receptor for that signal

B. a similar type of signal that it makes

C. a membrane that is permeable to that signal

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer 1

Option B, C and D are correct i.e " Extracellular matrix carbohydrates (polysaccharides), extracellular side of membrane proteins,Extracellular matrix proteins2 ".

Explanation

As its name suggests (Extra cellular) , these are the molecules that are present out side the cells membrane. Cytoskeletan proteins are present inside the cells.

Answer 2

Options A, B and C are correct i.e " neurotransmitters (small molecules), proteins and lipids".

Explanation

These are the signaling molecules that binds to the receptors present on the target cells and hence, helps in establishing communication between two cells.

Answer 3

Option A is correct i.e " A receptor for that signal".

Explanation

Hormone acts as a signaling molecule that binds to the target cells and helps in activation of signal transduction system within the target cells.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Choose correct answers: What determines the effect of a signal (like acetylcholine, or adrenaline) on a...
Choose correct answers: What determines the effect of a signal (like acetylcholine, or adrenaline) on a cell Question 9 options: A presence of a receptor on the cell B are often bound by peptide signals like insulin C act as G coupled proteins D association with downstream intracellular signaling cascades E always found in the nucleus F are likely to have effects within seconds G other proteins the cell expresses that could be influenced by the downstream cascade
1. Why is estrogen associated with carrier proteins in the blood? A. Carrier proteins are necessary...
1. Why is estrogen associated with carrier proteins in the blood? A. Carrier proteins are necessary to import estrogen into cells. B. Estrogen has only limited solubility in the bloodstream. C. Estrogen is very unstable in the blood. D. The carrier proteins bind with estrogen to receptors. 2. Which characteristic is NOT one attributed to a second messenger? A. intracellular signaling molecules B. molecules that can easily pass across membrane bilayers C. molecules that can act as allosteric effectors for...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.)...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.) GTP b.) GDP c.) GMP d.) dGTP e.) None of above 8.)which of the following amino acids can be phophorylated? a.) tyrosine, serine, theronine b.) tyrosine, serine, tryptophan c.) serine, threonine, asparagine d.) histidine, serine, phenylalanine e.) tyrosine, methionine, typrtophan 9.) most signal molecules: a.)easily diffuse through the membrane and bind to a receptor in the cytoplasm b.) bind to membrane receptors and transmit...
1- All of the following methods allow proteins to translocate to the nucleus and activate transcription...
1- All of the following methods allow proteins to translocate to the nucleus and activate transcription EXCEPT: Select one: a. Phosphorylation of the target protein b. Proteolytic cleavage of the target protein c. Polyubiquitylation of the target protein d. Polyubiquitylation of the inhibitor of the target protein e. Protein conformation change of inhibitors, releasing a catalytic subunit 2- A negative feedback loop is ____, while a positive feedback loop is ___. Select one: a. A signaling pathway that is linear;...
Which of the following statements is(are) correct? Animals store carbohydrates by building a large molecule, from...
Which of the following statements is(are) correct? Animals store carbohydrates by building a large molecule, from glucose, called starch.                 B.            Plants store carbohydrates by building a large molecule, from glucose,                                 called glycogen.                 C.            Plants “harness” and store sunlight-energy within the chemical                                 bonds of glucose.                 D.            All of the above are correct.                 E.            None of the above is correct.    The structure (consisting of a fatty-waxy substance) which separates the intracellular...
Which of the following contributes to the ability of lipids and proteins to move laterally within...
Which of the following contributes to the ability of lipids and proteins to move laterally within membranes (choose all that apply)? Question 10 options: A) Hydrophilic portions of the lipids are in the interior of the membrane. B) The individual intermolecular interactions in the membrane are noncovalent and weak. C) The intermolecular interactions in the membrane are covalent and strong. D) Proteins and lipids in the membrane can diffuse. E) Lipids and proteins repel each other in the membrane.
1. The release of the neurotransmitters cause cations to flow across the target cell membrane leading...
1. The release of the neurotransmitters cause cations to flow across the target cell membrane leading to membrane depolarization [an action potential]. What type of receptor is most likely responsible for this effect? a. Protein kinase receptors. b. Ligand-gated channels. c. G protein coupled receptors. d. Ion channels. e. Intracellular receptors. 2. Which type of cellular receptor autophosphorylates itself when it interacts with its signal? a. Protein kinase receptors. b. Ligand-gated channels. c. G protein coupled receptors. d. Intracellular receptors....
choose the correct answer. 1) Which is not a function of the integument? protection from microbial...
choose the correct answer. 1) Which is not a function of the integument? protection from microbial invasion. protection from water loss. platelet production. pheromone release. thermoregulation. 2) Microtubules: all of the above. form the extracellular matrix. form the spindle fibers. are made of actin. none of the above. 3) Mitochondria: are locomotor organelles. act as the control center of the cell. none of the above. synthesize the extra-cellular matrix. produce energy from food molecules. 4) Peroxisomes: neutralize hydrogen peroxide. produce...
QUESTION 29 In a synapse, neurotransmitters do not keep bonding to receptors over and over because:...
QUESTION 29 In a synapse, neurotransmitters do not keep bonding to receptors over and over because: A. they are non polar molecules B. the receptors are quickly removed C. scientists do not know D. they are quickly removed or broken down by an enzyme E. neurotransmitters do not bond to receptors 1.5 points    QUESTION 30 In the cell, proteins that are synthesized by the cell, are normally  produced  directly by (what organelle makes a protein) A. the ribosomes B. the mitochondria...
Part 6 Insulin receptors are located on the plasma membrane. That means; A. insulin signaling does...
Part 6 Insulin receptors are located on the plasma membrane. That means; A. insulin signaling does not need signal transduction B. insulin receptor can transport insulin into the cell C. insulin does not enter into the cell D. insulin may be a small hydrophobic molecule What is the purpose of signal transduction during cell signaling? A. to process and amplify the signal B. to receive the signaling ligand C. to inactivate other signals D. to transport signaling ligand When blood...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT