Exam study 2

Question 1

The coordination of systems in the body is carried out by?

Answer 1

Nervous system and endocrine system

Question 2

Nerve cells that carry information away from receptors and along the axons to the cell body are called

Answer 2

Sensory neuron

Question 3

Endocrine System

Answer 3

Hormones

Question 4

Smell sight

Answer 4

Olfactory nerve

Cones rods

Question 5

How does the body regulate blood sugar levels without eating for 12 hours

Answer 5

pancreas makes insulin. Insulin helps control your blood sugar levels by assisting the cells that absorb sugar from the bloodstream

Question 6

What are the effects of too much sugar in the blood

Answer 6

Can increase risk of getting heart disease and stroke, kidney disease, vision problems, and nerve problems.

Question 7

How is sugar regulated by the body

Answer 7

Insulin, glucagon. rise and fall to keep blood sugar in a normal range.
blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood.

Question 8

Hypothalamus

Answer 8

releasing hormones. regulating body temperature.Near pituitary gland

Question 9

Synapses

Answer 9

Gap between neurons

Chemical messages sent between them

Question 10

Endocrine

Answer 10

denoting glands which secrete hormones or other products directly into the blood

Question 11

Exocrine

Answer 11

denoting glands which secrete their products through ducts opening on to an epithelium rather than directly into the blood

Question 12

Mechanoreceptor

Answer 12

Hearing touch

Question 13

Photoreceptor

Answer 13

Vision

Question 14

Thermoreceptor

Answer 14

Touch

Question 15

Chemoreceptors

Answer 15

Taste smell

Question 16

Neurotransmitter

Answer 16

chemical substance which is released at the end of a nerve fibre by the arrival of a nerve impulse and, by diffusing across the synapse

Question 17

Independent variable

Answer 17

The one thing you change. Limited to only one in an experiment .Liquid used to water each plant

Question 18

Dependent variable

Answer 18

The change that happens because of the independent variable .The height it health of the plant

Question 19

Controlled variable

Answer 19

Everything you want to remain constant and unchanging. Type of plant used, pot size, a,puny of liquid, soil type

Question 20

What happens to glycogen when our blood glucose levels increase

Answer 20

Glycogen is stored in the liver and muscle tissue and the overall response is to lower the blood glucose level, returning it to a normal level.

Question 21

What does the pancreas do

Answer 21

The pancreas contains special cells that sense when there is too much glucose in the blood and then it releases insulin into the bloodstream.

Question 22

What does the bloodstream do for hormones

Answer 22

The bloodstream carries the hormone to the liver and muscle cells. When the hormone binds to the cell, glucose is taken from the bloodstream into the cell, where it is then converted into glycogen.

Question 23

2 neurons at a synapse

Answer 23

A nerve Impulse travels along the axon.The impulse reaches the end of the axon. Neurotransmitter chemicals are released from sacs in the axon terminals.Neurotransmitters swim across the synapse. Neurotransmitters reach the dendrite of the next neuron. The receptors on the next dendrite are stimulated by the neurotransmitters.The next neuron fires and the impulse continues along the next neutron