1. Glycogen
It is multibranched polysaccharide of glucose present in stored form in human to provide energy.
2.isotopes
Elemts that have same number of proton but different no. Of neutron.
3. Ionic bonds
4. Phospholipid
Phospholipid form bilayer of plasma membrane.
5.t,a,a,c,g
Cytocine binds with guanine
Thyamine binds with adenin and vice-versa
6.ionic bond
Ionic bond forms by transferring of electrons.
7.false
RNA is single strsnded in human.it do not show complimentary base pairing.
1,2,3,4,5,6 and 7 pls! 1. Glucose is stored as which molecule within the liver and skeletal...
QUESTION 1Which way do the fatty acid tails of a phospholipid face in a cell membrane?a.toward the inside of the cellb.toward the outside of the cellc.both directionsd.They lay parallel to the direction of the membrane.QUESTION 2A readily available source of energy that cells use to drive reactions is stored in the ___________ bond.a.phosphodiesterb.phosphoanhydridec.hydrogend.peptideQUESTION 3Which of the following occurs by bringing nonpolar surfaces together to exclude water?a.hydrogen bondsb.hydrophobic forcesc.Van der Waals attractionsd.electrostatic attractionsQUESTION 4How many bonds are made by a carbon...
14.Sucrose is composed of A. 1 molecule each of glucose and fructose. B. 1 molecule each of glucose and galactose. C. 2 glucose molecules. D. 2 galactose molecules. 15.Which hormone comes into play when the blood sugar dips too low? A. glucagon B. insulin C. gastrin D. estrogen 16.Which sweetener provides no calories to humans? A. sucrose B. sucralose (Splenda) C. xylitol D. fructose 17.______ and ______ acids are essential fatty acids. A. Acetic and butyric B. Oleic and linolenic...
1) A hydrogen bond is A) an attraction between a hydrogen atom attached to N, O, or F and an N, O, or Fatom on anothe molecule. B) a covalent bond between H and O. c) an ionic bond between H and another atom. D) a bond that is stronger than a covalent bond. E) the polar O-H bond in water. 2) Which of the following molecules can form hydrogen bonds? A) CH4 B) NaH C) NH3 D) BH3 E)...
21. Of the following choices, which would be a proposed mechanism by which a basic molecule affects an acid solution? a) It prevents the disassociation of H.O molecules therefore raising the pH toward 7.0. b) The base releases OH which can combine with H in the solution, therefore raising the pH toward 70 c) bases are ionic molecules that combine with the polar H,O molecules.) They counteract the burning sensation caused by acids by cooling the cells lining the stomache)...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...
Questions 7-15 The molecule is ethane 71 2 O ACTIVITY 1.2.1 Biological Macromolecules in 3-D 7. Orient the two molecules so that portions of the mo lecules that would normally form intermolecular bonds lie next to each other. In this activity, you will build molecular models of biologically important molecules using ball-and-spring molecular model 1) What intermolecular forces help to hold these mo- building kits and then you will view these and other molecules lecules together! of interest using computer-generated...
16. Fats and oils are also known as - a triglycerides b. tripeptides sterols d. phospholipids 17. Cell membranes are composed of a __bilayer. a triglyceride c. sterol b. tripeptide d. phospholipid 18. The degree of saturation of a fatty acid is determined by the number of - atoms in the molecule. a. carbon c. hydrogen b. oxygen d. nitrogen 19. Foods high in cholesterol include all of the following except a. liver C. eggs b. milk d. peanut butter...
1. A. Put the following atoms in order of increasing electronegativity Br N Н B. Using the atoms above, which pair of atoms will create the most polar bond? C. Put the bonds below in order from least to greatest bond polarity С-Н N-H Н-Br D. Explain how you arrived at your answers to B and C 2. A. For the following Lewis structures, determine the formal charge on all of the atoms in the structure H H O :...
21) Which type of bond is the weakest bond between two atoms:A) ionic bondB) covalent bondD) nonpolar bondE) hydrogen bond22) Look at the reaction below, fill in the blank with the correct number in order to balance the reaction:\(6 \mathrm{CO} 2+6 \mathrm{H} 2 \mathrm{O} \rightarrow \mathrm{C} 6 \mathrm{H} 1206+\)A) 2B) 4C) 60223) Which of the following statements below concerning water is not correct?A) composed of polar molecules.B) responsible for most of the mass of humansC) with low heat capacity:D) may...
1. Which of the following statements describes lipids? A) Lipids all have the steroid backbone. B) The body stores excess calories as lipids. C) Lipids are insoluble in water, but soluble in nonpolar solvents. D) Lipids are soluble in water, but insoluble in nonpolar solvents. E) Lipids are insoluble in all solvents 2. Which of the following type of molecule is not a lipid? A) amino acid B) triglyceride C) phospholipid D) steroid E) eicosanoid 3. Which type of lipid...