wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Praxis Biology practice

Total questions: 31

Worksheet time: 28mins

Name
Class
Date
1.

Which of the following are true? Select all that apply.

a)

Group 18 are Halogen Gasses. They are highly reactive.

b)

Group 18 are Noble Gasses. They are inert (do not react).

c)

Groups 1 and 2 are highly reactive metals

d)

Groups 1 and 2 are inert nonmetals

2.

An element from Group 1 or 2 is mostly likely to bond with an element from...

a)

Group 18 (Noble Gasses), which are inert 

b)

Group 18 (Noble Gasses), which are highly reactive

c)

Group 17 (Halogens), which are highly reactive

3.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
4.
At which point on the diagram does depolarisation of the axon occur? 
a)
A
b)
B
c)
C
d)
D
5.
A membrane potential becoming less negative is called
a)
hyperpolarization
b)
depolarization
c)
repolarization
d)
polarization
6.

What number(s) on the graph represents the THRESHOLD level of stimulus?

a)

1 and 5

b)

2

c)

3

d)

6

7.
When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.
a)
Sodium, depolarization, potassium
b)
Potassium, depoloarization, sodium
c)
sodium, repolarization, potassium
d)
postassium, repolarization, sodium
8.

Action potentials run along the ______ from ______ to ________.

a)

axon, dendrites, axon terminals

b)

axon, axon terminals, dendrites

c)

dendrites, axon, axon terminals

d)

axon terminals, axon, dendrites

9.

An action potential is __________ in nature, with the inside of the neuron being more ________.

a)

chemical, negative

b)

electrical, negative

c)

chemical, positive

d)

electrical, positive

10.

As the neuron fires, there's a reversal in _____ as the axon undergoes ________.

a)

direction, depolarization

b)

charge, depolarization

c)

direction, repolarization

d)

charge, repolarization

11.

Reorder the following (starting at beginning)

a)

Resting potential (-70mV), stimulus received

b)

Na+ gates open, threshold reached (-55 mV)

c)

Na+ gates open

d)

Na+ moves into the axon

e)

Action potential reached (+30mV)

1)
2)
3)
4)
5)
12.

IN THIS LIGHT MICROSCOPE, NUMBER 1 REPRESENTS:

a)

ARM

b)

EYEPIECE

c)

FINE FOCUS KNOB

d)

STAGE

13.

IN THIS LIGHT MICROSCOPE, NUMBER 5 REPRESENTS:

a)

ARM

b)

EYEPIECE

c)

FINE FOCUS KNOB

d)

COARSE FOCUS KNOB

14.

IN THIS LIGHT MICROSCOPE, NUMBER 7 REPRESENTS:

a)

STAGE

b)

OBJETIVE LENS

c)

FINE FOCUS KNOB

d)

REVOLVING NOSEPIECE

15.

IN THIS LIGHT MICROSCOPE, NUMBER 10 REPRESENTS:

a)

STAGE

b)

OBJETIVE LENS

c)

CONDENSER

d)

LAMP

16.

Ocular lens (eyepiece) magnifies the image by a factor of:

a)

4

b)

10

c)

30

d)

40

17.

The objetive lens that is called “scanning objective”

a)

4X

b)

10X

c)

30X

d)

40X

18.

This element is a:

a)

Cover slip

b)

Microscope glass

c)

Microscope slide

d)

Microscope specimen

19.

This element is a:

a)

Microscope glass

b)

Cover slip

c)

Microscope slide

d)

Microscope specimen

20.

The first action to prepare an specimen for the light microscope is to prepare a tissue and put it on:

a)

The cover slip

b)

The stage

c)

The base

d)

The microscope slide

21.

In a light microscope it is the flat surface upon which you will place each slide you will examine:

a)

The base

b)

The stage

c)

The lamp

d)

The eyepiece

22.

This genetic disorder is caused by non-disjunction of the 21st chromosome. It is one of the most common chromosomal disorders.

a)

Turner syndrome

b)

Hunington Disease

c)

Down syndrome

d)

Myopia

23.

Located on chromosome 4, this neurological disorder is caused by the presence of a DOMINANT ALLELE.

a)

dislexia

b)

Huntington Disease

c)

Turner syndrome

d)

Fragile X

24.

This genetic disorder is an example of monosomy, and is characterized by a karyotype of 45XO or 45X. It only affects women.

a)

Phenylketonuria

b)

Anemia

c)

Fragile X

d)

Turner Syndrome

25.

This genetic disorder causes a reduction/absence of melanin in the skin, hair and eyes. Located on chromosome 6, this disorder is common throughout the animal kingdom.

a)

Anemia

b)

Albinism

c)

Myopia

d)

Hemophilia

26.

This genetic disorder occurs on chromosome 12. This disorder does not allow for the breakdown of phenylalanine in the diet. Buildup of phenylalanine in the body can cause severe symptoms and even reduce lifespan.

a)

Hunington Disease

b)

Sickle-cell Anemia

c)

Phenylketonuria

d)

Myopia

27.

This genetic disorder causes red blood cells to exhibit an irregular shape. Symptoms of this disorder can include joint pain, poor circulation, and a shorter lifespan. It is highly prevalent in African and African American populations.

a)

Anemia

b)

Albinism

c)

Turner syndrome

d)

Sickle-cell Anemia

28.

Fragile X

a)

causes cognitive impairment

b)

occurs on the X chromosome

c)

causes learning disabilities

d)

all of these are characteristics of Fragile X

29.

Hemophilia

a)

can be deadly

b)

is curable

c)

occurs on the 21st chromosome

d)

is an example of non-disjunction

30.

Mypoia

a)

occurs on chromosome 18

b)

only affects males

c)

is a genetic disorder that causes farsightedness

d)

all of these characterize Myopia

31.

Dyslexia

a)

occurs on more than one chromosome

b)

is common in 5-10% of the general population

c)

is a learning disorder

d)

all of these characterize Dislexia

Similar Resources on Wayground

IoT.MnM

27 questions

IoT.MnM

quiz

Worksheet

•

University - Professi...

EA Science NBPTS Component 1 - C

27 questions

EA Science NBPTS Component 1 - C

quiz

Worksheet

•

Professional Development

Body Cavities/Systems

31 questions

Body Cavities/Systems

quiz

Worksheet

•

Professional Development

Scientific Method Introduction-BIO 131

26 questions

Scientific Method Introduction-BIO 131

quiz

Worksheet

•

Professional Development

Endocrine System

26 questions

Endocrine System

quiz

Worksheet

•

11th Grade - Professi...

WEATHER 5

26 questions

WEATHER 5

quiz

Worksheet

•

6th Grade - Professio...

Quiz 3 Neuro

26 questions

Quiz 3 Neuro

quiz

Worksheet

•

Professional Development

GED Science_ (Science Intro, S.M.Graphs)

30 questions

GED Science_ (Science Intro, S.M.Graphs)

quiz

Worksheet

•

University - Professi...