4th Long quiz (Physical Science)
Quiz by leiza palis
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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