Caca Bumbum

Question 1

What the reactant of cellular respiration

Answer 1

Glucose + oxygen

Question 2

Whats the function of the circulatory system?

Answer 2

Transport glucose and oxygen around the body to cells

Question 3

What would happen to a person’s energy levels if their oxygen intake decreased

Answer 3

• decrease oxygen = decrease in energy level
  Cellular respiration creates energy, less oxygen means less cell. Respiration = less energy

Question 4

Examples of pathogens

Answer 4

Bacteria, viruses, fungi

Question 5

How does hair, mucus, and saliva defend pathogens from entering the body?

Answer 5

Hair: traps pathogens to prevent entry
Mucus: Traps and removes pathogens
Saliva: enzymes damage pathogens

Question 6

Identify the defence system, antibodies

Answer 6

Antibodies help clump pathogens together to be consume and destroy

Question 7

Describe how body protects itself against allergens

Answer 7

Hair traps allergens from entering the body, mucus helps trap and remove allergens, and the saliva enzymes help destroy the allergens

Question 8

What does PNS stand for

Answer 8

Peripheral nervous system

Question 9

What are the two parts of the CNS

Answer 9

Central nervous system: brain and spinal cord

Question 10

Definition of dendrite

Answer 10

Single extension where a nerve impulse starts

Question 11

Definition of cell body

Answer 11

Contains the nucleus which controls the neurons

Question 12

Definition of axon

Answer 12

Single extension of a cell body and sends nerve impulses in one direction

Question 13

Detention of Axon terminal

Answer 13

Branches that send nerve impulses to other neurons, muscles or glands

Question 14

Identify the direction of motor neurons

Answer 14

CNS -> PNS
Interneuron -> sensory organs

Question 15

Definition of stimulus

Answer 15

A change in the environment

Question 16

Whats the action that involves thought and intent

Answer 16

Voluntary

Question 17

List the 4 features of a reflux

Answer 17

• fast
• requires a stimuli
• does not involve the brain
• protects the body from harm

Question 18

Identify the stages of the reflux arc

Answer 18

Stimuli
Receptor
Sensory neurons
Inter neurons
Motor neurons
Effectors

Question 19

Describe the stages of the reflux

Answer 19

Something triggers the stimuli, receptors detects this change, sensory neurons carries the signal to the spinal cord, interneurons then take this message to the motor neurons, which then carries the response signals back to the muscles. The effectors then cause a involuntary action (reflux)

Question 20

Definition of hormones

Answer 20

Chemical substances that act as messengers

Question 21

Whats the message type (electrical or chemical). message speed (fast or slow), structure used (neurons or glands), range of effect (specific or widespread) for nervous systems

Answer 21

Message type: electrical
Message speed: fast
Structure used: neurons
Range of effect: specific

Question 22

Name the glands/organs and its hormone and function

Answer 22

Pancreas - insulin
Pituitary gland - growth hormones
Ovary - oestrogen
Testes - testosterone

Question 23

Hormones can only affect certain cells. These cells are called:

Answer 23

Target cells

Question 24

Whats the message type (electrical or chemical). message speed (fast or slow), structure used (neurons or glands), range of effect (specific or widespread) for endocrine systems

Answer 24

Message type: chemical
Message speed: slow
Structure used: glands
Range of effect: widespread

Question 25

What type of systems are nervous and endocrine systems

Answer 25

Communication

Question 26

What do the 2 systems change about the body?

Answer 26

Environment when they respond to stimuli

Question 27

How do the 2 systems receive info

Answer 27

Receptors

Question 28

What role do the 2 systems play for the body

Answer 28

Help protect the body