WorksheetsBio mid term part 2
Total questions: 44
Worksheet time: 17mins
Name
Class
Date
1.
H2O is a liquid which resembles its components Hydrogen and Oxygen.
a)
True
b)
False
2.
The most basic form of a substance that can't be broken down by chemical means is
a)
an element
b)
a covalent bond
c)
a compound
d)
an ionic bond
3.
Carbon represented by the symbol C is a compound.
a)
True
b)
False
4.
In a water molecule, electrons are shared equally between the hydrogen atoms and the oxygen atoms.
a)
True
b)
False
5.
The opposite charges in a polar water molecule forms a weak bond called a hydrogen bond between hydrogen and oxygen.
a)
True
b)
False
6.
Because of adhesion and cohesion, water can move from the roots of a plant up to its leaves.
a)
True
b)
False
7.
Water changes temperature easily. (specific heat)
a)
True
b)
False
8.
Unlike most substances, water expands when it freezes.
a)
True
b)
False
9.
Water makes up 60% of the mass of the adult human body.
a)
True
b)
False
10.
A solute is what dissolves a solvent.
a)
True
b)
False
11.
Cohesion is the attraction of molecules that are
a)
similar
b)
different
c)
non-polar
d)
water and paper towel
12.
What is an acid?
a)
An alkaline
b)
Something that has a pH of 8 to 14
c)
A solution that has an excess of H+ ions.
d)
A solution that has an excess of OH- ions.
13.
Compound that prevents sharp sudden change in pH
a)
buffer
b)
acid
c)
chemical called strontium-90
d)
water
14.
Which property of water gives it strong surface tension?
a)
Capillary Action
b)
Cohesion
c)
Adhesion
d)
High Specific Heat
15.
Carbon atoms can bond together in straight chains, branched chains, or rings. T or F
a)
True
b)
False
16.
Carbon can bond with four other atoms.
a)
True
b)
False
17.
Large molecules containing carbon atoms are called
a)
micromolecules
b)
monomers
c)
macromolecules
d)
majormolecules
18.
Proteins are...
a)
made of nucletides
b)
made of monosaccharides
c)
made of amino acids
d)
comprised mainly of glycerols
19.
Proteins are complex polymers.
a)
True
b)
False
20.
What elements does carbon bond with to make up life’s molecules?
a)
Na, Mg, K, Ca, Co
b)
Se, Br, I, Cl, He
c)
C, H, N, O, P
d)
S, Ba, Tc, Au, Hg
21.
Which statement is not true about macromolecules?
a)
Proteins function to store extra sugar in the body.
b)
Polysaccharides and disaccharides are made up of monosaccharides.
c)
Lipids are important components of cell membranes..
d)
Nucleic acids are made up of nucleotides that carry genetic information.
22.
Which of the following is not an organelle?
a)
chloroplast
b)
ribosomes
c)
vacuoles
d)
cell
23.
Which of the following is not a type of living organism?
a)
Amoeba
b)
Molecule
c)
Mushroom
d)
Oak Tree
24.
The formula of sucrose is
a)
C12H22O11
b)
C6H12O6
c)
C12H24O12
d)
C12H23O10
25.
Sucrose is a disaccharide.
a)
True
b)
False
26.
What is the glucose formula?
a)
C6H12O2
b)
H6C12B5
c)
C6H12O2
d)
D3L4F7
27.
What type of sugar is Fructose?
a)
fiber
b)
monosaccharide
c)
sugar found in dairy (milk)
d)
polysaccharide
28.
What is starch ?
a)
A polysaccharide made up of glucose molecules is found in plant cells
b)
A monosaccharide made up of fructose molecules is found in plant cells
c)
A disaccharide made up of glycerol molecules is found in plant cells
d)
A complex carbohydrate called amino acids found in animal cells
29.
What is glycogen ?
a)
A protein; polysaccharide made up of glucose molecules linked together
b)
A lipid; polysaccharide made up of glucose molecules linked together
c)
A carbohydrate; polysaccharide made up of glucose molecules link together
d)
carbohydrate fiber called cellulose
30.
What is the function of glycogen?
a)
stores nucleotides for nucleic acids
b)
a principle component in protein synthesis
c)
stores and releases glucose in animals
d)
a lipid based steroid
31.
Glucose is
a)
glue
b)
not necessary for life
c)
the molecule component of a cell wall
d)
blood sugar and a monosaccharide
32.
What is cellulose?
a)
waxy outer layer of a plant leaf
b)
A polysaccharide which provides strength and rigidity to plant cells.
c)
It provides strength and rigidity to human cells
d)
A protein found in worms
33.
What is the subunit of nucleic acids?
a)
Nucleotide
b)
Amino acid
c)
RNA
d)
DNA
34.
What consists of three fatty acids and one molecule of glycerol?
a)
peptides
b)
phosphate
c)
lipds
d)
carbohydrates
35.
DNA and RNA are...
a)
lipids
b)
nucleic acids
c)
carbohydrates
d)
proteins
36.
Proteins contain...
a)
peptide bonds
b)
monosaccharides
c)
glycerol
d)
DNA, RNA, ATP
37.
What is the genetic code made of?
a)
Chains of Animo Acids
b)
Ribosomes
c)
Nucleic acids
d)
Recessive Genes
38.
commonly called fats and oils
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleic acids
39.
long term energy storage, insulation, and protection
a)
carbohydrates
b)
lipids
c)
nucleic acids
d)
protein
40.
Proteins contain...
a)
C, H, O, N
b)
He, Ne, Kr, Ar
c)
C, H, O, N, P
d)
DNA, RNA, ATP
41.
Organelles combine to form a ____________.
a)
Tissue
b)
Cell
c)
Organ system
d)
Organ
42.
What are DNA and RNA made of?
a)
Carbon, Nitrogen
b)
Hydrogen
c)
Oxygen, Phosphorus
d)
all of these
43.
What are unicellular organisms?
a)
Made of only one cell
b)
Made of a lot of cells
c)
No cells
d)
All of the above
44.
Simple, unicellular organisms.
a)
Plantae
b)
Animalia
c)
Mushrooms
d)
Bacteria
100 %
