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Biology Final

Total questions: 50

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

In DNA, cytosine always pairs with

a)

guanine

b)

uracil

c)

thymine

d)

adenine

2.

DNA has

a)

a left handed twist

b)

a single strand

c)

genetic information stored in it

d)

a straight chain structure

3.

A red flower bred to a white flower produces red and white spotted flowers. This is an example of

a)

incomplete dominance

b)

recessive genes

c)

epistasis

d)

co-dominance

4.

Identify the cellular organelle that the process of photosynthesis occurs in:

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

vacuole

5.

Identify the gas that is an input (reactant) of photosynthesis:

a)

oxygen

b)

Water

c)

carbon dioxide

d)

nitrogen

6.

Identify the cellular organelle that the process of cellular respiration occurs in:

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

golgi

7.

What is the simplest level of organization in the body?

a)

cell

b)

tissue

c)

organ

d)

organ system

8.

Which of the following levels of organization BEST represents the sequence from smallest to largest?

a)

Cell, tissue, organism, organ

b)

Cell, organism, organ, tissue

c)

Cell, tissue, organ, organ system

d)

Cell, organism, tissue, organ system

9.

What happens to the chromosome number during meiosis?

a)

doubles

b)

halves

c)

stays the same

d)

becomes diploid

10.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
11.

Which of the following categories of organic molecules is CORRECTLY matched to its function?

a)

nucleic acids- digest old cell parts

b)

lipids - gives quick energy to cells

c)

carbohydrates- stores genetic material

d)

proteins- provides structure to hair, skin and nails

12.

An organism that has 2 different alleles for a trait is _____.

a)

homozygous

b)

haploid

c)

homologous

d)

heterozygous

13.

Which phase of mitosis is being represented in the image?

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

14.

Which stage of mitosis is being shown in the image?

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

e)

cytokinesis

15.

Which is the correct order of mitosis in the above image?

a)

1, 2, 3, 4, 5

b)

2, 4, 3, 1, 5

c)

2, 4, 3, 5, 1

d)

4, 2, 3,1,5

16.

What color is the heterozygous individual in the image?

a)

Purple

b)

White

17.

All sex cells are

a)

diploid

b)

haploid

c)

polyploidy

d)

none

18.

This process being shown increases genetic variation in organisms.

a)

doubling up

b)

crossing over

c)

dividing chromosomes

d)

genetic switching

19.

What process is being shown in the image?

a)

mitosis

b)

meiosis

c)

karyotyping

d)

genetic cross

20.

Which are homozygous? (select all that apply)

a)

BB

b)

Bb

c)

bb

d)

none

21.

Which of the three flowers are heterozygous?

a)

BB

b)

Bb

c)

bb

d)

both BB and Bb

22.

This is used to predict possible genotypes resulting from a cross

a)

Punnett Square

b)

Hardy-Weinberg

c)

Gene pool analysis

d)

Law of segregation

23.

What type of genetics problem is this

a)

autosomal

b)

genetic cross

c)

sex linked

d)

none

24.

The fish show both colors because the alleles for red and blue are

a)

incomplete dominant

b)

co-dominant

c)

dominant/recessive

d)

polygenic genes

25.

The image shows a genetic cross that involves

a)

co-dominant alleles

b)

incomplete dominant alleles

c)

polygenic traits

d)

dominant/recessive alleles

26.

What type of pedigree is shown in the image?

a)

sex-linked

b)

autosomal dominant

c)

autosomal recessive

d)

none

27.

This is the process of biological change in nature

a)

artificial selection

b)

evolution

c)

speciation

d)

variation

28.

This is the mechanism by which nature is the selective agent in individuals that have inherited beneficial adaptations

a)

artificial selection

b)

natural selection

c)

heritability

d)

fitness

29.
What is the original source of energy is almost all ecosystems?
a)
Water
b)
Sunlight
c)
Energy
d)
organisms
30.
What is a decomposer?
a)
eating food with your teeth
b)
any organsim, such as bacteria or fungus, that breaks down organic material as a source of food
c)
an animal eating another animal
d)
is a secondary consumer
31.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
32.
What is a Biotic factor?
a)
The sun.
b)
Is any living component that affects the population of another organism, or the environment. 
c)
How the climate affect the environment.
33.

What is an abiotic factor?

a)

A chemical reaction

b)

An animals cells

c)

Are non-living chemical and physical parts of the environment that affect living organisms

34.
The food you eat must be broken down into a different form before your body can use it.
a)
True
b)
False
35.
The maintenance of an organism’s internal environment is called:
a)
compensating
b)
homeostasis
c)
balancing
d)
routine
36.
What is the function of an enzyme?
a)
enzymes break themselves into small pieces
b)
they slow down chemical reactions
c)
they speed up chemical reactions
d)
enzymes combine products to form reactants 
37.
What are the raw materials for cellular respiration?
a)
oxygen and water
b)
oxygen and glucose
c)
glucose and carbon dioxide
d)
water and carbon dioxide
38.
Where does cellular respiration take place?
a)
nucleus
b)
chloroplast
c)
mitochondria
d)
cell membrane
39.
What is created as a product of cell respiration?
a)
energy (ATP)
b)
glucose (C6H12O6)
c)
oxygen (O2)
d)
sodium chloride (NaCl)
40.
Which cell process is represented by this equation:
C6H12O6 + 6O2 →          6CO2  +  6H2O +  ATP
a)
diffusion
b)
photosynthesis
c)
cell respiration
d)
mitosis
41.
During this process, glucose (C6H12O6) is created in the chloroplasts of plant cells.
a)
Cell respiration
b)
Photosynthesis
c)
Diffusion
d)
Mitosis
42.
Where does photosynthesis occur?
a)
mitochondria
b)
stomata
c)
xylem
d)
chloroplast
43.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
44.

Which of the following is the correct equation for photosynthesis?

a)

CO2 + H2O --light--> O2 + glucose

b)

CO2 + glucose + H2O --> O2 + ATP

c)

O2 + H2O --light--> CO2 + glucose

d)

CO2 + O2 + H2O --> Light+ glucose

45.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
46.
What term is used to describe having two of the same genes for the trait?
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
47.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
48.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
t
49.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
50.

What was your favorite memory from class this semester?

a)

Write a few sentences.

b)

^^^

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