Which of the following is a steroid? a. cholesterol b. nicotine c. aniline d. lactose e. collagen
Question:
Which of the following is a steroid?
a. cholesterol
b. nicotine
c. aniline
d. lactose
e. collagen
Steroid:
Steroid is an organic compound that has a nonpolar and hydrophobic properties due to the steroid nucleus or a four fused-ring structure. The main structure of steroids is the four fused-ring structure. Since it is a nonpolar and hydrophobic compound, it belongs to the lipid macromolecules. Steroid nucleus is a common structure in the body and is found in some hormones such as estrogen and androgen.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
View this answerThe answer is a. cholesterol.
The compound cholesterol is the lipid molecule from the choices that contain a steroid nucleus. Since a steroid nucleus...
See full answer below.
Ask a question
Our experts can answer your tough homework and study questions.
Ask a question Ask a questionSearch Answers
Learn more about this topic:
from
Chapter 2 / Lesson 6Regardless of the type, all steroids have similar fundamental chemical structures and are considered lipids. Discover more about steroids, including their structure, function, and how steroids derive from cholesterol.
Related to this Question
- Which of the following is not a protein? \\ A. DNA polymerase B. Alcohol dehydrogenase C. Cellulase D. Hemoglobin E. Cholesterol
- Which of the following statements about cholesterol is not correct? (a) Cholesterol is a steroid that contains a tetracyclic ring system. (b) Cholesterol is a steroid that contains 8 chiral carbons an
- What type of lipid is given below? a) steroid b) wax c) fatty acids d) tryacylgliceride
- Which of the following are characteristics of cholesterol? 1) It is a weakly amphipathic, rigid substance. 2) It is the precursor for all steroidal hormones. 3) It packs neatly with the fatty acid tails of membrane bilayers. 4) It is part of the lipid fam
- Which of the following statements regarding the biosynthesis of cholesterol is false? a. Cholesterol has the same carbon skeleton as its biosynthetic precursor, lanosterol. b. Cholesterol is derived from the dimerization of farnesyl pyrophosphate in a hea
- Which of the following compounds are derived from cholesterol? a. Glyceryl tristearate b. Cortisone c. Testosterone d. Estradiol e. Bile salts
- What is the most abundant steroid in the body? A. Sex hormones B. Cholesterol C. Cortisone D. Cholic acid
- Which of the following types of lipids is a non-fatty-acid-containing lipid? a. steroids b. sphingolipids c. triacylglycerols d. phosphoacylglycerols
- Which of the following lipids can be a major component of biological membranes? a. Phosphatidylinositol b. Phosphatidylcholine c. Phosphatidic acid d. Cholesterol e. Phosphatidylcholine and cholesterol
- Classify the following lipid as wax, fatty acid, steroid, triacylglycerol, glycerophospholipid, or sphingolipid.
- What is the steroid that regulates secondary sexual characteristics? A. Progesterone B. Cortisol C. Estradiol D. Cholesterol
- Which of the following steroid hormones is responsible for the conversion of proteins to carbohydrates? (a) Testosterone (b) Estradiol (c) Cortisol (d) Aldosterone (e) Progesterone.
- What are the structures of synthetic intermediates A and B used in a specific synthesis of atorvastatin, which is used to lower serum cholesterol levels in patients by inhibiting HMG-CoA reductase, an enzyme involved in cholesterol biosynthesis? The synth
- Which of the following is an example of a protein that exhibits a quaternary structure? a. insulin b. hemoglobin c. collagen d. keratin
- Which of the following would be released from a triglyceride upon hydrolysis? A. 3 Fatty acids (or 3 moles of fatty acid per mole of triglyceride) B. Glucose C. Glyceraldehyde-3-phosphate D. Pyruvate
- Which is not an example of a lipid? (a) Lecithin (B) Triacylglycerol (c) Cholesterol (d) Vitamin E (e) Glycine.
- Which statement is true? a. All fatty acids in a triglyceride are unsaturated. b. All lipids contain fatty acids. c. All steroids contain a 4-ring region. d. All phospholipids have one saturated fatty acid tail and one unsaturated fatty acid tail.
- Which of the following is an example of a monosaccharide? 1. Maltose 2. Lactose 3. Galactose 4. Amylose 5. None of the above
- Which of these glycolytic enzymes is not found in gluconeogenesis? a. phosphoglycerate kinase b. phosphoglyceromutase c. enolase d. hexokinase e. triose phosphate isomerase
- Which statement about cholesterol is not correct? A. Cholesterol is not able to transport itself throughout the body. B. Cholesterol is a precursor for steroid hormones. C. Low HDL levels and higher LDL levels are considered indicators of bad health.
- Which of the following does not exhibit quaternary structure? a) Hemoglobin b) Collagen c) Tubulin d) Myoglobin e) Keratin
- Which of the following is an enzyme drug used for acute leukemia treatment? a) Dihydrofolate reductase b) Asparaginase c) Aromatase d) DNA gyrase
- Which of the following are phospholipids? Select all that apply. a. steroids b. prostaglandins c. cephalins d. lecithins
- Which of the following is not a biological polymer? a. triglycerides b. cornstarch c. glucose d. DNA
- Which of the following are examples of proteins? Select all that apply. (a) Antibodies (b) DNA (c) Enzymes (d) RNA (e) Hemoglobin
- Which of the following is not an unsaturated fatty acid? A. CH3CH2CH2CH2CH2CH=CHCOOH B. CH3CH2CH2CH=CHCH=CHCOOH C. CH3CH2CH2CH2CH2CH2CH2COOH D. CH3CH2CH2CH2CH2CH2CH2CH=CHCOOH E. CH3CH2CH2CH=CHCH2CH=CH
- What is the difference(s) between fatty acids and steroids? (a) Only fatty acids have a long chain of hydrocarbons. (b) Only steroids have four rings fused together in a structure. (c) Fatty acids have a hydrophobic component; steroids do not. (d) None of
- What kind of lipid is cholesterol?
- Choose the correct statement describing lipids. a. Lipids are soluble in water. b. Steroids are not a classification of lipids. c. Lipids are waxes, fats, oils, phospholipids, and steroids that are insoluble in water. d. A long-chain alcohol is a lipid.
- Identify all substances that have anti-inflammatory properties. \\ A. testosterone B. naproxen C. cholesterol D. pioglitazone E. clavulanic acid F. octocrylene
- Which of the following does not undergo oxidation or reduction during metabolism? A. Lipids B. Coenzyme A C. Carbohydrates D. FAD
- Which of the following proteins is globular? a. collagen b. keratin c. fibrin d. myoglobin
- The steroid that is the raw material for the production of other steroids is _____. a. triglyceride. b. cholesterol. c. progesterone. d. eicosanoid.
- What is the most abundant protein in the human body? a. collagen b. enzymes c. globular protein d. alpha-keratin
- Which of the following is not an amino-acid containing hormone? A) insulin B) thyroid C) glucagon D) testosterone
- What is the main component of the cell membrane? a. triacylglycerols b. phospholipids c. steroids d. cortisones e. omega-6 acids
- Adrenal hormones are substances derived from which class of lipid? A) fatty acids B) triglycerides C) phospholipids D) sterols
- Which of the following are logical allosteric activators of glycolysis? a. ATP, citrate, fructose 1,6 bisphosate b. AMP, citrate, pyruvate c. AMP, fructose 1,6 bisphosphate d. ADP, acetyl CoA
- Which of the following enzymes would be inhibited by EDTA? A. EcoRV B. Carbonic anhydrase C. Carboxypeptidase A D. Thermolysin E. All of the above
- Lipids synthesized from arachidonic acid. Choose from the following: a) leukotriene b) cerebroside c) eicosanoid d) active transport e) wax f) saponification g) prostaglandin h) lecithin i) emulsifier
- Which of the following has a layered beta-sheet structure? a. globin b. fibroin c. a-keratin d. collagen e. none of these
- Which of the following is not a coenzyme? A. NAD+ B. Coenzyme A C. ATP D. FAD
- Steroids serve the following biological functions : A) As membrane components, emulsifiers of dietary fats and sex hormones B) Components of triglycerides, membranes and sex hormones C) To clog arteries, emulsifiers of dietary fats, membranes and sex h
- Which of the following types of lipids has a "head and two tails" structure in which both "tails" are fatty acids? a. steroids b. sphingolipids c. triacylglycerols d. phospholipids
- Which of the following lipid derivatives is classified as an eicosanoid? a. oleic acid b. carotenoids c. phospholipids d. sphingomyelin e. leukotrienes
- Which of the following fatty acids would be classified as a saturated fatty acid? a. 16:1 fatty acid b. 18:0 fatty acid c. 20:2 fatty acid d. 22:4 fatty acid
- Which of the following is a catalyst in biochemical reactions? A. amino acid B. nucleic acid C. alkane D. enzyme
- Which class of compounds does not include any proteins? \\ A. Omega fatty acids B. Immunoglobulins C. Enzymes D. Hormones
- Cholesterol is an important lipid that has numerous roles in the body. It serves as a precursor molecule for what other important biomolecules?
- What are the three main types of lipids found in milk?
- Identify the omponents (1-6) contained in each of the following lipids (a-d): 1.) Glycerol 2.) Fatty Acid 3.) Phosphate 4.) Amino Alcohol 5.) Steriod Nucleus 6.) Spingosine a.) Glycerophospholipid b
- Which of the following is not an example of a biological polymer? a. Egg albumin b. Fatty acids c. Starch d. DNA
- Which of the following is not a micronutrient? (a) Vitamins (b) Lipids (c) Amino acids (d) More than one choice is correct.
- What kind of molecules are found in the indicated conjugated protein in addition to the protein part? Lipoproteins
- How does the chemical structure of steroids differ from that of other lipids?
- are lipids with four fused ring structures. a. Sphingolipids b. Phospholipids c. Steroids d. Enzymes e. Gangliosides
- Which of the following statements concerning the complete hydrolysis of fats and oils is correct? (a) Fats produce more fatty acids per molecule than do oils. (b) Oils produce more glycerol per molecule than do fats. (c) Fats produce only saturated fatty
- What group of lipids is cholesterol a member of?
- Which of the following are needed for a ribosome to synthesize a polypeptide chain? a. aminoacyl-tRNAs b. RNA polymerase c. promoter d. helicase e. mRNA f. ATP
- Which of the following are examples of organic pesticides? (a) C 12 H 8 C l 2 (b) 1,4-dioxin (c) benzene (d) arsenic
- What is a triacylglycerol or triglyceride?
- Which of the following statements are true? *Triacylglycerols (triglycerides) always contain three identical fatty acids. *Unsaturated fats are more likely, than saturated fats, to be liquid at room temperature. *Triacylglycerols (triglycerides) are com
- Which of the following contributes to the UV absorption of a protein? a. proline b. tryptophan c. glutamate d. methionine e. all of the above
- Cholesterol belongs to the ______ group of lipids. A) Steroid. B) Phospholipid. C) Tricylglycerol. D) Wax. E) Prostaglandin.
- Which of the following can be used to catalyze the condensation of benzaldehyde to benzoin? a. vitamin B12 b. vitamin B1 c. vitamin C d. cyanomethane e. potassium cyanide f. sodium cyanide
- Which of the following mutations in a peptide sequence is most likely to result in a functional protein? A) Aspartic acid to arginine. B) Glutamic acid to glutamine. C) Glutamine to asparagine. D) Phenylalanine to serine. E) Phenylalanine to tyrosine.
- Which of the following would not fall under the classification of lipids? A. fats B. fatty acids C. oils D. amino acids E. All of the above are lipids.
- What are the structures of the following: *trioses *tetroses *pentoses *hexoses *sucrose *maltose *lactose *starch *glycogen *cellulose
- Which of the following drugs is used as a 'booster' for protease inhibitors? 1. Lopinavir. 2. Abacavir. 3. Ritonavir. 4. Both A and B.
- Which is an example of a cofactor? A. lactose B. lactose dehydrogenase C. NAD^+ (nicotinamide adenine dinucleotide) D. tryptophan
- Which protein is the most abundant in humans? a. hemoglobin b. myoglobin c. collagen d. keratin
- What two molecules (separately) can be catalyzed with HCl to get 1 chloro-1 methylcyclohexane?
- Which of the following is a rich source of polyunsaturated fatty acids? A) corn oil B) coconut oil C) beef fat D) butter
- What are the polar and non-polar portions of each of the following lipids? a) Triacyglycerol b) Sphingolipid c) Cholesterol
- Eicosanoid that is responsible for muscle contraction. Choose from the following: a) leukotriene b) cerebroside c) eicosanoid d) active transport e) wax f) saponification g) prostaglandin h) lecithin i) emulsifier
- Which of the following can be found in DNA? a. uracil b. ribose c. GMP d. FMN e. deoxyadenosine
- Which of the following best describes a lipid? A. Lipids are biomolecules that contain the ester functional group. B. Lipids are biomolecules that contain fatty acids. C. Lipids are biomolecules that have negative effects on a person's health. D. Lipids
- The backbone of a phospholipid is which of the following? A) Glycerol. B) Cholesterol. C) Fatty acid chain. D) Triacylglycerol. E) Glucose.
- Which of the following compounds inhibits the pyruvate dehydrogenase complex? a) acetyl CoA b) ADP c) GTP d) NAD+ e) FAD
- Which of the following is a product of nitrogen catabolism in fish? a. Pyruvate b. Urea c. Allantoin d. Ammonium ion
- Why is decolorizing carbon (charcoal) used in the purification of cholesterol? What functional groups cholesterol has?
- Which of the following molecules plays a crucial role in the feedback inhibition of nitrogen metabolism? a. Glutamate b. Urea c. Allantoin d. Ammonium ion
- Write representative structures for the following: (a) A fat (b) A vegetable oil (c) A steroid
- Which of the following is the most abundant of all carbohydrates? a. Cellulose b. Glycogen c. Lactose d. Starch e. Ribose
- What is the fat molecule whose components are glycerol and butanoic acid?
- Which of the following statements is not true about fatty acids? A. Most naturally occurring fatty acids contain even numbers of carbons and are unbranched. B. Fatty acids can be saturated or unsaturated. C. The double bonds in unsaturated fatty acids are
- Which is not an anabolic steroid? a. nandrolone b. cortisone c. stanozolol d. tetrahydrogestrinone
- Which of the following amino acids from an integral membrane protein would likely contact the membrane? a. Asn b. Gln c. Glu d. Ala e. Asp
- Which of the following is a female sex hormone? a. ergosterol b. estradiol c. cortisone d. androsterone e. cholic acid
- Identify all compounds that can be classified as phenols. \\ 1. norepinephrine 2. testosterone 3. turmeric 4. a-tocopherol 5. fluorescein 6. morphine
- Which types of lipids have fatty acids as part of their structure? Select all that apply. a. Triglycerides b. Phospholipids c. Steroids d. Waxes e. Fat-soluble vitamins
- Which of the following compounds is an enzyme? A) Glucose. B) N-acetyl-D-glucosamine. C) Triosephosphate isomerase. D) Dihydrofolate.
- What type of protein is a biological catalyst? (a) None of these are correct (b) carbohydrates (c) triglycerides (d) enzymes (e) amino acids
- What is the major enzyme responsible for the initiation of sterol synthesis? What major fatty acid substrate does it require?
- Cortisol (362.74 g/mol) is a steroid hormone involved in protein synthesis. Medically, it has a major use in reducing inflammation from rheumatoid arthritis. Cortisol is 69.6 % C. 8.46% H, and 22.1 % O. Calculate the following. a. What is the empirical f
- Which hormone acts through a cytoplasmic receptor? A. Calcitriol B. Prolactin C. Vasopressin D. None of the above
- Which types of lipids have phosphate as part of their structure? Select all that apply. a. Triglycerides b. Phospholipids c. Waxes d. Steroids e. Fat-soluble vitamins f. Fatty acids
- Classify each of the following proteins according to its function. (a) lipoprotein, a lipid carrier (b) collagen, a major component of tendons and cartilage (c) myosin, found in muscles (d) amylase, catalyzes the hydrolysis of starch
- Which of the following carbohydrates have beta glycosidic bonds? a. glucose b. amylopectin c. lactose d. galactose e. amylose f. maltose g. cellulose h. fructose i. ribose
- Which one is polar and which one is non polar and what are their properties? \\ A. Cholesterol B. Phosphatidyl choline C. Triacylglycerol D. Oleic acid