6. the exoskelcton of insects and crustacean loh amwer choices b and s are comec
ID: 146281 • Letter: 6
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6. the exoskelcton of insects and crustacean loh amwer choices b and s are comect The e ble ihr on food packages nefer which of the l Potypepeides Starch d Amylopectin itn re which of the Sollowing? 20. polar substances that repel natur molecules sonpelar substances that repel water molecales polar sabstances that have an affinity for waber d. chargod molecules that hydrogen-bond with water e. nospolar subslances that have an attraction for water molecales 21. Which of the following statements is true Sor the class of biological moleculey kngwm as fas They are soluble in water They are made from glycerol, faty acids, and phosphate They contain more stored energy than proteins and carbohydraes d They are made by hydrolysis reactions e. They are polar molecules thast contain amino groups 22. Whichnntof concerning saturated fat? are more common in animals than in plants They have mulle douhle bonds in the carbn ns of hir fary acids u Satura They generally solidify at room semperature d. They contain more hydrogen than unsaturated fats having the same namber of carbon atoms e. They are one of several factors that contribute to atheroclerosis Eatty acids are bonded to glycerol by which of the following types of a Glycosidic bonds b. Phosphodiester bonds . Peptide bonds d. Pter bonds Olydrogen bonds 24. Which of the tollowing statements is r ophophalipids? a. The hydrophilic phosphate head groups face the interior poetion of the membranc b. The hydrophobic fatty acid tail groups face the exterior portion of the membrane c. They do not freely move lateraly withis the membrane d. All of the above answer choices are true of membranes The phosphate group (head) surs towands water and the farty acids (tails) turn sowards the interior of the membrane away from water 25. Which of the following molecules in cells contains phosphate groups? a Phospholipids b. ATP proteins d. amylose and fructose are which of the follow Isotopesenantiomers c.cis-rans isomers nuctural isomersfe.structural isotopes 27. Both starch amylopectin and glycogen consist of linear chains of alpha glucose subunits boeded by alpha l glycosádic linkages so what is the major structural difference between sh and gcoapn whether the monosaccharide glacose subunits is in the u or form b. Starch is a misture of amylose and amy lopectin and glycogen is a mixture of cholesterol and cellulose c. amylopectin forms beanches every 12 glucose units by alpha 1-6 plycosidic inkages glycogen forms beanches every 8 or 10 glhucose units by alpha L-5plycosidic linkages e. Both answer choices c and d are correct 28. Which organelle of plant cells stores excess carbohydrates and often takes up much of the volume of the cel 29. The cell wall is a common feature of which of the following types of organisms 30. Which of the following is the function of carbolrydrate molecules in living organisms a. Lysosome (B, chloroplast c.central vacuole d. mitochondrion .Golgi apparatus a. Prokaryotes b. Plants . Fungill of the above answers are correct e all types of organismsExplanation / Answer
29) Cell wall is present only in plants and absent in animals cellwall provide structure to the cell the hexagonal structure of the plant cell is maintain by the cell wall and cell wall is absent in fungi and other prokaryotic organism like bacteria.
28) answer central vacoule vacoule which occupy the larger part of a cell and which contains ninty percent of fluid and also it stored protein carbohydrates etc..
26) structural isomers:glucose, galactose, and fructose, have the same molecular formula: C6H12O6.these are hexose sugars with six carbon atoms. Although the molecular formula is same the arrangement of atoms differs in of these so the compound s which have identical molecular formulas but different structural formulas, are known as structural isomers
21) b fatts are made up of long chain fatty acids and gycerol containing compounds. Remaining all are not true
25) both ATP and phospholipids
Phospholipids consisting of one glycerolmoleculetwo fatty acids, and aphosphate group.
ATP :also contain tried phosphate
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