Chapter 1: Introduction to Biology and Basic Chemistry
Assessment: Quiz 1
Name:
Matrix No:
1) Define the following
[2]
a) Molecule
________________________________________________________________________
b) Tissue
________________________________________________________________________
c) Organ system
________________________________________________________________________
d) Population
________________________________________________________________________
2) What are the key features of living things?
[2]
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
3) What is homeostasis?
[1]
______________________________________________________________________________
______________________________________________________________________________
4) Does energy get recycled? Explain.
[1]
______________________________________________________________________________
______________________________________________________________________________
5) An experiment is carried out to determine which type of fertilizer is best used to improve crop
yield. Identify the independent and dependent variables.
[1]
______________________________________________________________________________
______________________________________________________________________________
6) True or false:
a) Archaea is closely related to bacteria.
b) Plants are the only living things that can carry out photosynthesis.
c) The closer an electron is to the nucleus, the lower energy it has.
d) All the isotopes of an element have similar chemical properties.
e) Water is a good solvent because the water molecule is non-polar.
f) pH measures the relative concentration of both hydrogen and
hydroxide ions in a water-based solution.
g) Whether an atom will form an ionic bond or a covalent bond is
determined by the difference between its atomic weight and its
atomic number.
h) Hydrogen bonds stabilize the structure of DNA.
i) In covalent bonds, protons are shared equally between atoms.
j) Hydrophilic molecules are attracted to water.
[
[
[
[
[
[10]
]
]
]
]
]
[
]
[
[
[
[
]
]
]
]
7) List the properties of water that are important to life.
[3]
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Total: [
/20]