Biology-11 Coordination and response

Multiple Choice

What are changes in the environment that can be detected by organisms called?

• stimuli

• receptor

• response

• neurotransmitter

Multiple Select

What could be the stimuli (more than one answer)?

• Light

• Sound

• Smell

• Heat

Multiple Select

The nervous system is divided into two main parts:​ (choose two answers)

• central nervous system

• peripheral nervous system

• autonomic nervous system

• end nervous system

Multiple Choice

What are the cells that transmit signals in the nervous system?

• The Spinal Cord

• striated cells

• neurones

• epitheal cells

Multiple Choice

In what direction does the electrical signal travel through the neuron?

• From dendrites, down the Axon, and out Axon terminals

• From Axon terminals, down the Axon, & out of the dendrites

• Any direction up or down the cell

Multiple Choice

This insulating material forms a layer, around the axon of a neuron.  It enables electrical signals to travel down the axon at higher speeds.

• myelin sheath

• dendrite

• neurotransmitter

Multiple Choice

What are the chemicals that cross the synaptic gap between neurons called?

• neurotransmitters

• myelin

• glial

• hormones

Multiple Choice

What is the central focal point in the retina called?

• blind spot

• optic nerve

• fovea

Multiple Choice

Which statement about light receptors in the retina of a normal human eye is correct?

• The cones only work in dim light

• The rods are only found in the fovea.

• There are three types of cones.

• There are three types of rod.

Multiple Choice

What is the job of the optic nerve?

• To carry nerve impulses to the brain

• To convert light to electrical signal

• To react to too much light

• To help bending light

Reorder

Reorder the following path when the light gets into the eye.

• cornea

• pupil

• lens

• retina

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

The circular muscles and radial muscles in the iris are antagonistic muscles which means they always contract at the same time.

• True

• False

Multiple Choice

________ is the growth response of a plant toward or away from a stimulus.

• tropism

• solopsism

• paraxism

• truism

Multiple Choice

Which one is wrong about phototropism?

• Auxins increase the growth of stem cells.

• Auxins accumulate on the shaded side.

• The plant grows towards the light.

• Auxins are plants' nerve cells.