NEW
Font size
S
M
L
XL
WorksheetsBiology CA #2
Total questions: 45
Worksheet time: 2hrs 36mins
Name
Class
Date
1.
Which structure, composed mainly of proteins and phospholipids, aids in maintaining homeostasis in a cell?
a)
Chromosome
b)
Centrosome
c)
Cell Membrane
d)
Nucleolus
2.
A white blood cell is responsible for the removal harmful agents, like bacteria, from our bloodstream. What organelle helps this cell perform its main function?
a)
Mitochondria
b)
Lysosome
c)
Cell Membrane
d)
Ribosome
3.
What organelle is associated with the production of proteins?
a)
nucleus
b)
ribosome
c)
mitochondria
d)
cell membrane
4.
The cell membrane is made mostly of
a)
phospholipid monolayer and proteins
b)
phospholipid bilayer and proteins
c)
proteins and carbohydrates bilayer
d)
triglycerides and carbohydrates
5.
Over time, what would happen to the concentration of O2 in the cell?
a)
It would decrease because cells naturally move from low to high
b)
It would decrease because the cell has more CO2
c)
It would increase because the cell has too much CO2
d)
It would increase because cells naturally move from high to low
6.
A model cell that is 30% filled with dye is placed into a beaker of distilled water. After 20 minutes in the beaker, the concentration of the dye went from 30% to 20%, but no dye left the cell. Which best explains what occurred to the model cell?
a)
Water diffused into the model cell.
b)
There was a chemical reaction and dye was lost.
c)
Water was lost from the model cell.
d)
The dye disappeared.
7.
What occurs in the S phase?
a)
Cell Growth
b)
Replication of DNA
c)
Preparation for Mitosis
d)
Cell Division
8.
What process occurs following fertilization (the combining of a sperm and egg)?
a)
Meiosis
b)
Growth
c)
Mitosis
d)
None of the above
9.
A mutation occurred in a sperm cell on one of its chromosomes. The change will likely -
a)
create a pathogen
b)
convert the sex cell to a body cell
c)
change the number of chromosomes
d)
be passed on to every cell that develops from that sperm cell
10.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
11.
Which of the following is a nucleic acid?
a)
A
b)
B
c)
C
d)
D
12.
A class of students are given a substance that they must classify as a certain type of biological molecule. One characteristic given is the substance is insoluble in water. What type of biological molecule best fits this unknown substance?
a)
Carbohydrate
b)
Protein
c)
Lipid
d)
Nucleic Acid
13.
What biological molecule is shown?
a)
Polymers of amino acids
b)
Monomers of lipids
c)
Polymers of monosaccharides
d)
Monomers of nucleic acids
14.
Ms. Johnson's class wanted to see if plants would survive in the dark. They set the plants in a dark room and watered regularly, but the plants died within days. Knowing the plants didn't get sunlight, what weren't they able to produce?
a)
CO2 and H2O
b)
Glucose and CO2
c)
O2 and Glucose
d)
ATP Energy
15.
Of the following food labels, which fruit most likely to give the largest amount of ATP, and what is the reason for this?
a)
Bananas, because it has the most protein
b)
Apples, because they contain the least amount of sugars and fats
c)
Bananas, because they contain the most sugars and fats
d)
Oranges and Bananas, because they contain the most sodium
16.
The letters in the DNA sequence below represent:
TACCGGATA
TACCGGATA
a)
A sugar
b)
A phosphate group
c)
A protein
d)
A nitrogenous base
17.
Recently a couple gave birth to fraternal twins. One boy, one girl. Both babies have blonde hair, but one baby has blue eyes while the other has brown. What is most likely the reason for this genetics difference?
a)
They inherited different numbers of chromosomes
b)
They inherited different amounts of DNA
c)
They inherited different nucleotide sequences
d)
A mutation occurred in the sequence of nucleotides
18.
What type of bond occurs between the two strands of DNA molecules?
a)
Hydrogen bond
b)
Covalent Bond
c)
Metallic Bond
d)
Ionic bond
19.
If thymine makes up 32% of a sample section of DNA, what percent of the sample section is made up of cytosine?
a)
36
b)
18
c)
32
d)
68
20.
A female guinea pig homozygous dominant for black fur color is mated with a homozygous for white fur color. In a litter of eight offspring, there would probably be ________
a)
8 black guinea pigs
b)
4 black and 4 white guinea pigs
c)
2 black, 4 gray and 2 white guinea pigs
d)
8 white guinea pigs
21.
What are the gametes for BbDd?
(USE FOIL)
(USE FOIL)
a)
B, b, D, d
b)
BD, bD, Bd, bd
c)
BD, BD, Bd, bd
d)
bD, bD, bd, bd
22.
What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?
a)
Ry
b)
RRyy
c)
RrYy
d)
Rryy
23.
One parent is AaBB and another is AABB.
Draw out the punnett square.
Foil EACH parent's gametes.
What percentage of offspring will be AaBB?
Draw out the punnett square.
Foil EACH parent's gametes.
What percentage of offspring will be AaBB?
a)
25
b)
50
c)
75
d)
100
24.
Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?
a)
Red
b)
Red and White
c)
White
d)
Pink
25.
In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?
a)
2/4
b)
0/4
c)
4/4
d)
1/4
26.
A male beetle has the genotype Ttbb. If this beetle mates with a female with genotype TTBb, what is the chance their offspring will have the genotype TtBb?
a)
3/16
b)
4/16
c)
8/16
d)
12/16
27.
What is a possible phenotype of a child that results from a woman with type AB blood and a man with type A blood?
a)
OO
b)
type O
c)
AA
d)
type A
28.
The genetic code carries
a)
molecules through the cell membrane
b)
ATP across the cytoplasm
c)
instructions for translating information into proteins
d)
lysosomes around to kill bacteris
29.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
30.
The central dogma of biology states that information flows in one direction from
a)
nuclei to RNA to cytoplasm
b)
ribosomes to proteins to DNA
c)
genes to nuclei to ribosomes
d)
DNA to RNA to proteins
31.
Which of the following events occurs directly after RNA polymerase recognizes a gene?
a)
The polymerase strings amino acids into a polypeptide
b)
Free-floating RNA nucleotides pair up with exposed DNA bases
c)
A complementary RNA strand detaches itself from the DNA
d)
The DNA strand begins to unwind, separating the two strands
32.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
33.
What is a codon?
a)
It is a three letter section of bases that are read by ribosomes to stamp amino acids into a protein
b)
They are the codes on the DNA (hence "code-on"
c)
It is a type of mutation that occurs when there has been a substitution, deletion or insertion.
d)
It is a made up word for this quiz. Nice try, Wampler.
34.
How are mutations passed on to offspring?
a)
Any mutation that an organism acquires in its life can be passed on to the offspring through its gametes (sex cells)
b)
Only mutations that occur *in the gametes* are passed on to the offspring
c)
Mutations are not usually passed on to the offspring. A mutation stays within the original organism.
d)
Mutations are not passed to offspring. They only occur within developing embryos.
35.
What is the central dogma of biology?
a)
Proteins are made from RNA that assembles amino acids through DNA ribosomes.
b)
RNA copies all information for an organism onto DNA which assembles ribosomes, and creates amino acids from proteins
c)
DNA is the blueprint for an organism. RNA copies specific sections that need to be built and transfers that information to a ribosome which assembles proteins out of amino acids.
d)
RNA is the blueprint for an organism. It copies its information onto DNA, which takes amino acids (like lego building blocks) and assembles those acids into proteins.
36.
Two organisms that are closely related would have
a)
very similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
37.
Darwin's observation that finches of different species on the Galapagos have many similar physical traits supports the hypothesis that these finches
a)
have the ability to interbreed
b)
acquired traits through use and disuse
c)
all eat the same type of food
d)
descended from a common ancestor
38.
Which best describes fossils?
a)
They are the preserved remains or evidence of ancient living things
b)
They are the preserved remains or evidence of ancient living and nonliving things
c)
They are the preserved bones of ancient animals
d)
They are impressions of plant leaves in ancient rocks
39.
What is one thing paleontologists cant learn about from the fossil record?
a)
The structure of an organism.
b)
The genetic information of an organism.
c)
The way organisms lived.
d)
The environment in which organisms lived
40.
What is the process in which humans breed organisms for certain traits?
a)
natural selection
b)
inheritance
c)
artificial selection
d)
descent without modification
41.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
a)
0%
b)
25%
c)
50%
d)
100%
42.
What fraction of offspring from the cross AaBB x Aabb will be heterozygous for both traits?
a)
1/16
b)
1/4
c)
1/2
d)
3/16
43.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
44.
How are mutations passed on to offspring?
a)
Any mutation that an organism acquires in its life can be passed on to the offspring through its gametes (sex cells)
b)
Only mutations that occur *in the gametes* are passed on to the offspring
c)
Mutations are not usually passed on to the offspring. A mutation stays within the original organism.
d)
Mutations are not passed to offspring. They only occur within developing embryos.
45.
Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?
a)
Yes, because any change to the DNA is passed on to the offspring
b)
Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.
c)
No. Only mutations that occur in the gametes (sex cells) are passed on to the offspring
d)
Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.
Reset
