Human Nutrition
Which of the following is not a macronutrient?
a carbohydrate
b fat
c protein
d vitamin
d vitamin
Select the option that correctly fills the blank in this sentence: When table salt mixes with water, _____ is formed.
a a solution
b a colloid
c an immiscible mixture
d a suspension
a a solution
Name the physical quantity that has magnitude but no direction.
a scalar quantity
b vector quantity
c resultant force
d frictional force
a scalar quantity
What is the name of the gaseous product of photosynthesis?
a carbon dioxide
b oxygen
c water vapor
d nitrogen
b oxygen
Name the process that removes water from the Earth's surface.
a condensation
b precipitation
c evaporation
d transpiration
c evaporation
Complete this sentence: Egestion involves...
a the removal of undigested food from the alimentary canal
b the process of breaking down food for its nutrients
c the removal of metabolic waste from the body
d none of the above
a the removal of undigested food from the body
Which of these metals undergoes the chemical change of rusting?
a aluminum
b zinc
c copper
d iron
d iron
Identify the false statement about balanced forces.
a objects experiencing balanced forces are stationary
b balanced forces occur in the same direction
c balanced forces are equal and point in opposite directions
d balanced forces cause no change in motion
b balanced forces occur in the same direction
What is the chemical formula for glucose?
a CO2
b C6H12O6
c C12H6O12
d C6H2O6
b C6H12O6
Which of these chemicals can be used to test for water?
a hydrated copper(II) sulfate
b cobalt chloride
c steam
d sulfuric acid
b cobalt chloride
Which enzyme is found in the saliva?
a maltase
b rennin
c pepsin
d amylase
amylase
Which statement best defines an element?
a the smallest particle of matter
b a pure substance made up of two or more atoms
c a pure mixture of different atoms
d a pure substance made up of one type of atom
d a pure substance made up of one type of atom
Select the instrument used to measure force.
a photometer
b spring balance
c bean balance
d analytical balance
b spring balance
What are the products of photosynthesis?
a CO2 + H2O
b C6H12O6 + CO2
c C6H12O6 + O2
d C6H12O6 + H2O
c C6H12O6 + O2
Which of the following is a form of precipitation?
a rain
b sleet
c snow
d all of the above
d all of the above
Where in the gut does the absorption of the digested food take place?
a mouth
b stomach
c small intestine
d large intestine
c small intestine
At what temperature does an impure solid melt?
a a lower temperature than the pure solid
b a higher temperature than the pure solid
c the same temperature as the pure solid
d none of the above
a a lower temperature than the pure solid
What is the unit for force?
a kilometers
b newtons
c newton meters
d newton meters squared
c newton meters
Which of the following lists has only consumers?
a callaloo, caterpillar, dog
b dogs, mongoose, rabbits
c callaloo, cabbage, corn
d caterpillar, mango, dogs
b dogs, mongoose, rabbits
What is water i the gaseous form called?
a vapour
b ice
c steam
d evaporation
a vapour
Which of the following is not an enzyme produced by the pancreas?
a tryspin
b pepsin
c amylase
d lipase
b pepsin
Which of the following is not a chemical change?
a sublimation of Idoline
b burning of paper
c baking a cake
d rusting
a sublimation of Idoline
Joe was trying to move a heavy container across the floor. He decided to push it on rollers. Identify the statement that best explains why the container was easier to move while on rollers.
a the rollers reduce the friction between the container and the ground
b the rollers increase the friction between the container and the ground
c the rollers reduce the mass of the container
d none of the above
a the rollers reduce the friction between the container and the ground
Which of the equations below best represents the reaction for photosynthesis?
a carbon dioxide + water ➡️(solar energy) glucose + oxygen
b oxygen + water ➡️(solar energy) glucose + carbon dioxide
c carbon dioxide ➡️(solar energy) (chlorophyll) glucose + oxygen
d oxygen + water ➡️(solar energy) (chlorophyll) glucose + carbon dioxide
a carbon dioxide + water ➡️(solar energy) glucose + oxygen
What property of water allows small animals to walk on its surface?
a solvent properties
b surface tension
c density
d freezing point
b surface tension