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4th Long quiz (Physical Science)

Quiz by leiza palis

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34 questions
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  • Q1

    Which biomolecular group carries and passes on the hereditary information of the organism?

    nucleic acids

    lipids

    carbohydrates

    proteins

    30s
  • Q2

    Which biomolecules are significant features of the cell membrane?

    nucleic acid and protein

    lipid and nucleic acid

    protein and lipid

    carbohydrate and nucleic acid

    30s
  • Q3

    Atom is the basic unit of a chemical element. What are the atoms that make up carbohydrates?

    C and H

    C, H and O

    C, H, O and N

    C, H and N

    30s
  • Q4

    Which organic molecule gives fast source of energy? 

    lipids

    carbohydrates

    nucleic acids

    proteins

    30s
  • Q5

    Which nutrient group is used in the composition of waxes and responsible for insulation of some organisms?

    nucleic acids

    proteins

    carbohydrates

    lipids

    30s
  • Q6

    Which of the following is considered as the building blocks of protein?

    nucleotides

    polypeptides

    nucleic acids

    amino acids

    30s
  • Q7

    The excessive consumption of carbohydrates is converted into which polysaccharide that is stored in the liver and in muscles?

    glycogen

    creatinine

    hemoglobin

    uric acid

    30s
  • Q8

    Which of the following is a monosaccharide which is used in dextrose?

    fructose

    lactose

    galactose

    glucose

    30s
  • Q9

    What conditions must be met in order for a chemical reaction to occur?

    Sufficient activation energy

    Both collision with proper orientation and sufficient energy

    Collision with proper orientation

    Adding more reactant particles

    30s
  • Q10

    Which of the following would NOT increase the rate of reaction?

    Increasing the temperature

    Adding catalyst

    Increasing the concentrations

    Increasing the volume

    30s
  • Q11

    Suppose you dissolve Zinc (Zn) in Hydrochloric acid (HCl) and add more acid than usual. Then drop pieces of Zinc. What factor does NOT affect the rate of the reaction?

    Amount of Hydrochloric acid

    Temperature of the solution

    Concentration of the reactant

    Surface area of the Zinc

    30s
  • Q12

    Activation energy is the amount of energy required to _________

    Form the bonds between the product molecules

    Make the reacting particles collide

    Break the bonds between the reacting molecules

    Convert the reactant to a single product

    30s
  • Q13

    How does a catalyst work in speeding up a reaction?

    none of these

    by making them more available.

    by giving them more energy.

    by lowering the activation energy or reaction

    30s
  • Q14

    What is the name given to a catalyst in the human body?

    Chemical

    enzyme

    catalyst

    Biology

    30s
  • Q15

    How is catalyst different from a reactant?

    Adding more catalyst slows down the rate of reaction.

    The catalyst is not used up in the reaction.

    Adding more catalyst speeds up the rate of reaction.

    The catalyst increases the activation energy of the reaction.

    30s

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