triggers the binding of myosin to actin

increases the action potential along the sarcolemma

When a muscle contracts

myosin heads pull the actin towards the M line

both actin and myosin become shorter in length

actin heads pull myosin towards H line

What is depolarization in muscle contraction?

When channels open in a nerve terminal

When the myosin head pulls on the actin

When calcium binds to troponin causing tropomyosin to change it's shape

When muscle cells become fatigued

What information does a velocity give that a speed does not give?

units of measurement such as km/h or mi/h

A object goes from point X to Y and then come back from Y to X. What is the displacement and average velocity?

displacement is zero, Average velocity is also zero

displacement is increase, Average velocity is also increase

displacement is increase, Average velocity is also decrease

displacement is increase, Average velocity is also zero

What is Newton's First Law

An object at rest stays at rest, an object in motion stays in motion.

Every action has an equal and opposite reaction

Why is the top of an airplane wing curved?

To create an area of low pressure above the wing

To create an area of high pressure above the wing

To create equal pressure above and below the wing

To make the wing look really cool

What do Axon Terminals do?

Sends information to the next cell

Intakes information from other neurons

Produces fatty tissue for the Myelin Sheath

Controls the speed of electrical signal through the axon

IB SEHS

Quiz

•

Science

•

11th - 12th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-LS1-3, MS-PS3-5, MS-PS2-2

+1

Standards-aligned

Charles Martinez

FREE Resource

37 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Opening the door by a handle is an example of....

1st class lever

2nd class lever

3rd class lever

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Biceps curl is an example of...

1st class lever

2nd class lever

3rd class lever

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The neurotransmitter stored in the axon terminal identified as #3

Acetylcholine

Protein Channel

Calcium Ion (Ca²⁺)

Syanptic Cleft

The organelle that contains actin and myosin.

Tendon

myofilament

myofibril

Fiber

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What two chemicals are necessary for muscle contraction to occur?

Niacin and Potassium

Calcium and ATP

Sodium and Potassium

Ach and Potassium

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a crossbridge?

Where myosin binds to actin

Where the calcium crosses into the cytoplasm

Where calcium binds with troponin

None of the answers are correct.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_ and _ are regulatory proteins bound to actin.

Troponin and tropomyosin

Myosin and actin

Calcium and Oxygen

Glycogen and hemoglobin

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IB SEHS

37 questions

Opening the door by a handle is an example of....

Biceps curl is an example of...

The neurotransmitter stored in the axon terminal identified as #3

The organelle that contains actin and myosin.

What two chemicals are necessary for muscle contraction to occur?

What is a crossbridge?

_ and _ are regulatory proteins bound to actin.

Calcium:

The image is an example of which class of lever?

Which class of lever is shown by the diagram?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

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IB SEHS

37 questions

Opening the door by a handle is an example of....

Biceps curl is an example of...

The neurotransmitter stored in the axon terminal identified as #3

The organelle that contains actin and myosin.

What two chemicals are necessary for muscle contraction to occur?

What is a crossbridge?

___ and ___ are regulatory proteins bound to actin.

Calcium:

The image is an example of which class of lever?

Which class of lever is shown by the diagram?

Access all questions and much more by creating a free account

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Popular Resources on Wayground

Discover more resources for Science

_ and _ are regulatory proteins bound to actin.