WorksheetsCHAPTER 2- The Chemical Basis of Life-Formative Assessment 2019
Total questions: 10
Worksheet time: 56mins
Name
Class
Date
1.
Which of the following properties of water enables it to move from the roots to the leaves of plants?
a)
Water expands as it freezes.
b)
Water is an excellent solvent.
c)
Water exhibits cohesive behavior.
d)
Water moderates temperature.
2.
A group of cells that have similar functions? Examples are nervous, epithelial, muscle and connective
a)
cells
b)
tissues
c)
organs
d)
atoms
3.
The type of compound that contains carbon atoms bonded to other carbon atoms
a)
carbon
b)
organic
c)
molecule
d)
macromolecule
4.
Water is the most abundant molecule found in living organisms. Most mammals, in fact are approximately 70% water by weight. About two-thirds of this water is present inside cells. The other one-third is present outside cells (e.g., in blood plasma or other body fluids). Why is water so important to cells?
a)
Water is stored in the cells to be used when the organism gets thirsty.
b)
Almost all the chemical reactions in life processes occur in solutions with water.
c)
Water determines which proteins are translated from the cellular DNA.
d)
The main structural component found in plasma membranes and cell walls is water.
5.
Protein molecules are composed of long chains of __________ .
a)
ribosomes
b)
RNA
c)
amino acids
d)
DNA
6.
The main effect that water has on climate is that extreme temperatures ____________ occur in cities near large bodies of water, because water heats up and cools down very slowly.
a)
never
b)
most often
c)
are more likely to
d)
are less likely to
7.
What is the most abundant chemical found in living cells?
a)
carbohydrates
b)
water
c)
proteins
d)
nucleic acids
8.
These organic molecules are used by the body to store and release energy.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
9.
Which is not a use or function of protein?
a)
forms enzymes and hormones
b)
forms transport channel in cell membrane
c)
forms structural proteins in the body
d)
quick energy
10.
Proteins are made of monomers called ___________
a)
Nucleotides
b)
Monosaccharides
c)
Amino Acids
d)
Glycerol and fatty acids
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