46

In a stimulus-response system that is responding to a decrease in temperature, an effector could be:

• The decrease in external temperature

• Thermoreceptors in the skin

• The central nervous system

• Muscle movement resulting in shivering

In the diagram what is the cell part labelled as 1?

• Soma

• Dendrite

• Axon

• Nucleus

Tags

NGSS.MS-LS1-2

In the diagram, what cell part is represented by the 3?

• Dendrite

• Cell body

• Axon

• Schwann Cell

Tags

NGSS.MS-LS1-2

The enzyme tasked with unwinding DNA during DNA synthesis is:

• DNA ligase

• DNA polymerase

• DNA helicase

• DNA phosphate

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Below is a sequence of template DNA. What would the mRNA strand look like if the DNA sequence was transcribed?

3'- ATGCCGTAGCGGG -5'

• 5'- TACGGCATCGCCC -3'

• 5'- UACGGCAUCGCCC -3'

• 3'- ATGCCGTAGCGGG -5'

• 3'- AUGCCGUAGCGGG -5'

Tags

NGSS.MS-LS1-2

During repolarisation of an action potential what is occurring?

• The sodium channels close and potassium channels open to restore the positive charge on the outside of the membrane

• The sodium pump is restored and sodium ions are pumped out of the cytoplasm until resting potential is restored

• A stimulus is travelling along a neuron and opening the sodium channels causing the cell to become more positive

• The cell potential inside the neuron is being maintained by sodium-potassium pumps

The neuron displayed is a:

• Interneuron

• Sensory Neuron

• Motor Neuron

• Association Neuron

What is the atomic number of the element with the symbol 'Pd'?

• 44

• 45

• 46

• 47

Tags

NGSS.HS-PS1-1

Which element has an atomic number of 46?

• Silver

• Palladium

• Rhodium

• Cadmium