Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
science validation
science validation test in which you will fail
| Question | Answer |
|---|---|
| What is the definition of homeostasis? Why is it important for our bodies to maintain homeostasis? | Homeostasis is the ability of the body to maintain a stable internal environment even when the external environment changes. |
| What is the difference between negative and positive feedback loops? | A negative feedback system is a system that reverses a change in the body to bring it back to the set point however positive feedback loop amplifies and moves away from set point. |
| What are the parts of a feedback loop? | stimulus, receptor, command centre, effector, and response). |
| What are the diseases when endocrine glands don't work properly? | The endocrine gland releases hormones into the bloodstream, if not released then you will have hormonal imbalance. Disorders within the endocrine system is diabetes, gigantism, and pituitary dwarfism. |
| What is an endocrine gland? What is a hormone? | An endocrine gland releases hormones into the bloodstream. Hormones act as chemical messengers. |
| What is Pituitary gland, what's one hormone that the pituitary gland produces? | A pituitary gland is a small gland in the brain, it produces hormones that affect other glands. -Luteinizing Hormone- causes ovulation in females and testosterone production in males |
| What hormones do the pituitary gland produce? | -Thyroid Stimulating Hormone – stimulates the thyroid glad -Human Growth Hormone - growth hormone - Antidiuretic Hormone – maintains water balance, blood pressure, impacts the kidneys and urination. |
| What are the diseases with the pancreas glands when they don't work properly? | Pancreas: Type 1 Diabetes – when the cells that produce Insulin do not produce insulin. Individuals with diabetes must monitor their blood sugar and take insulin. |
| What are the functions of the nervous system? | The main functions of the nervous system is Sensory Input –Integration –Output . Additionally the stimulus-receptor-command centre-effector and response. |
| What is the CNS ? | The CNS includes the brain and spinal cord. Its roles include control centre, processes information, makes decisions, sends signals to the body. |
| What does the pituitary, hippocampus and amygdala do? | Pituitary: Growth and hormones Hippocampus: Learning and memory Amygdala: Emotions, especially fear. |
| What is the difference between the Somatic Nervous system and the Autonomic Nervous system? | Somatic nervous system: voluntary control Autonomic nervous system: involuntary control |
| In the Autonomic nervous system, how does the Sympathetic nervous system differ from the parasympathetic nervous system? What's one similarity? | The sympathetic nervous system is fight or flight Parasympathetic is rest and digest Both involuntary control |
| What is the structure of a neuron (Know the key words: Axon, Axon terminal, Cell Body, Dendrites, myelin). | The axon is a long thread that carries information away from the cell box, axon terminal converts electrical signals into chemical signals. Cell body contains the nucleus, dendrites are fine threads that receive information from neighbouring neuron's. |
| What is the role of neurotransmitters? What does Myelin do? | Neurotransmitters release into the synapse, the space between the axon and any neighbouring neuron. It triggers an electrical impulse in that neuron. Myelin is a white substance, found around the axons and protects+ insulates it. Allows messages to pass. |
| What is a reflex arc? How does it differ from normal response pathways? | Reflex arcs is the unconscious reflex response and the stimulation that causes the reflex, they are in-built. It differs from normal response pathways as it is shorter and bypasses the brain. |
| What are the main parts of the brain we learned and what do they do? the cerebrum, cerebellum, Brain stem,, and Hypothalamus. | Cerebrum: Thinking, memory, senses, movement Cerebellum: Balance, coordination Brainstem: Breathing, heartbeat, autonomic functions Hypothalamus: Temperature, hunger, hormones |
| What is a dependent and independent variable? | Dependent variable is the variable that is measured and changes because of the independent variable. The independent variable is the changes variable. |
| What is a "control" in an experiment? Why is it important to have one? | The controlled variable is held the same, and only the independent variable changes. It's important to have one to see the difference between the changes and unchanged aspect. |
| What is a Fair Test? | A fair test only tests one variable and the rest are controlled variables. |
| How do you write a scientific question? | You write what the effect is of the independent variable on the dependent variable. |
| What is the difference between qualitative data and quantitative data? | Quantitive is numbers, it can be continuous or discontinuous. Qualitative is descriptors, it's descriptive and is not numbers. |
| What's the difference between continuous or discontinuous? | Continuous is an infinite number of values, no seperate values, data collected using measurements on a scale. Discontinuous are thinks like colours, days, months. |
| What is an Adrenal Gland? Where in the body is it? | On top of the kidneys. It releases adrenaline in the body, helps prepare for and deal with immediate stress and releases cortisol which helps with managing long term stress, immune and metabolism. |
| What is a thyroid gland? What hormone does it produce? | The thyroid gland produces the hormone thyroxine, regulates metabolism, heart rate and muscle control. You can have 2 disorders with the thyroid gland: Hyperthyroidism trouble gaining weight, hypothyroidism: little thyroxin and put on weight. |
| What is a Hypothalamus, | The hypothalamus is located in the brain and receives signals from the nerves, controls the release of hormones from the pituitary gland |
| What is a testes | The testes is a pair of reproductive glands that produce sperm. Secrete testosterone to give the body it's masculine characteristics |
| What is the ovaries? | Pair of reproductive organs found in women that produce eggs. Secrete oestrogen and progesterone which controls ovulation and menstruation. |
| What does adrenaline cause? | Increased heart rate, dilated pupils, constricted blood vessels, slowed digested and focused attention. |
| What is a pancreas? | A pancreas releases insulin and glucagon to keep the level of blood sugar stable. Insulin causes cells to take in sugar and lowers blood sugar, glucagon causes sugar that is stored in the liver to be released in the blood. |
| What disorders come with the pituitary gland? | Too much of the growth hormones (GH) in early childhood can result in a condition called gigantism. Too little GH can result in Pituitary Dwarfism. |
| What is the nervous system? | Nervous system is the body’s communication network It allows the body to Receive information from the internal and external environment Processes the information Respond appropriately |
| What does the stimulus do? | Stimulus is a change in the environment, its an external or internal change |
| What does the PNS do? | PNS: includes All nerves outside the brain and spinal cord, receptors. Role includes: Carries messages between the body and the CNS Detects stimuli and delvers responses to the muscles/glands. |
| What does the receptor and control centre do? | Receptor detects the change, control centre is the brain or endocrine system and decides the response. |
| What does the effector and response do? | Effector is the muscles or organs that carry on the response, response is what reverses the change and restores homeostasis. |
| What does the sensory neuron do? | Takes messages from a receptor to the central nervous system |
| What does the inter neuron do? | sends messages within the central nervous system |
| What does the motor neuron do? | sends messages from the central nervous system to the effector |
| What are the three main types of neutrons? | sensory, inter and motor neuron. |
Created by:
audreyyusss