What is the function of a nerve cell in a multicellular organism? (1 point)
Responses
make and move protein
make and move protein
store and distribute oxygen
store and distribute oxygen
carry and transmit signals
carry and transmit signals
produce and manage movement
carry and transmit signals
Question
How are red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism? (1 point)
Responses
They are small because their organelles are smaller than those of other cells.
They are small because their organelles are smaller than those of other cells.
They are long and thin with a tail-like end.
They are long and thin with a tail-like end.
They are flexible because they lack a plasma membrane.
They are flexible because they lack a plasma membrane.
They are small because they lack a nucleus.
They are small because they lack a nucleus.
They are small because they lack a nucleus.
How do dendrites help the function of nerve cells? (1 point)
Responses
They help the neuron receive messages from the axon of another neuron.
They help the neuron receive messages from the axon of another neuron.
They help the neuron block messages from the axon of another neuron.
They help the neuron block messages from the axon of another neuron.
They help the neuron receive messages from the dendrites of another neuron.
They help the neuron receive messages from the dendrites of another neuron.
They help the neuron block messages from the dendrites of another neuron.
They help the neuron receive messages from the dendrites of another neuron.
How might a red blood cell work with a neuron to support the function of a multicellular organism? (1 point)
Responses
A neuron may signal when and where oxygen is needed.
A neuron may signal when and where oxygen is needed.
A red blood cell may carry oxygen to the nucleus of a neuron.
A red blood cell may carry oxygen to the nucleus of a neuron.
A red blood cell may produce more neurons.
A red blood cell may produce more neurons.
A neuron may produce more red blood cells.
A neuron may signal when and where oxygen is needed.
How are red blood cells and neurons different? (1 point)
Responses
Neurons lack organelles, but red blood cells have organelles.
Neurons lack organelles, but red blood cells have organelles.
Neurons are all the same size, but red blood cells are different sizes.
Neurons are all the same size, but red blood cells are different sizes.
Neurons contain DNA, but red blood cells do not.
Neurons contain DNA, but red blood cells do not.
Neurons need oxygen, but red blood cells do not.
Neurons contain DNA, but red blood cells do not.
The function of a nerve cell, also known as a neuron, in a multicellular organism is to carry and transmit signals. Neurons are specialized cells that are responsible for receiving, processing, and transmitting electrical impulses throughout the body. They play a crucial role in the communication and coordination of different body systems.
To understand this answer, you can observe that nerve cells have unique structures and characteristics that enable them to carry out their function. They have extensions called dendrites that receive signals from other neurons or sensory receptors. These signals are then transmitted along the cell body and its long, slender projection called the axon. Axons can be quite long, allowing signals to be transmitted over long distances in the body.
At the end of the axon, there are structures called synapses which allow the transfer of signals to other nerve cells or target cells, such as muscle cells or glands. When an electrical impulse reaches the synapse, it triggers the release of specialized chemicals called neurotransmitters, which then transmit the signal to the next cell.
By carrying and transmitting signals, nerve cells allow organisms to respond to stimuli, control movement, regulate bodily functions, and process information. They are fundamental components of the nervous system and are essential for the coordination of various activities within a multicellular organism.