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Flashcards in Unit 2 Deck (116)
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1

Cells group together to form what?

Tissues

2

Tissues form what?

Organs

3

How to stem cells reproduce?

Through mitosis

4

What is the function of an adult stem cell?

To repair and replace damaged cells

5

Where does growth in plants take place?

Meristems

6

Where are meristems found in plants?

Tips of growing shoots and roots

7

Where is an apical meristem found?

Root tips

8

Where are lateral meristems found?

Surrounds stem of plant

9

What does the central nervous system consist of?

The brain and spinal cord

10

What are some of the main functions of the nervous system?

Send information, co ordinate workings of internal organs, respond to stimuli on the outside

11

What is the role of the sensory receptors?

To send information about what is happening inside and out to the CNS

12

What is the role of the cerebrum in the brain?

Enables conscious thought and memory

13

What is the role of the cerebellum in the brain?

Controls coordination and balance

14

What is the role of the medulla in the brain?

Controls breathing and heart rate

15

What is a reflex?

An unconscious action such as pulling away from a hot object

16

What is your reflex arc?

A simple pathway for the reflex action and is made up of three neurons

17

What are the three neurons that makes up the reflex arc?

Sensory neuron, reflex neuron and motor neuron

18

What is the role of the sensory neuron?

It carries information from a receptor to a relay neuron

19

What is the role of a relay neuron?

It connects a sensory neuron to a motor neuron

20

What is the job of a motor neuron?

Carries information to an effector (a muscle or gland)

21

What are the gaps between neurons called?

Synapses

22

Has the exocrine system got a faster or slower response compared to the nervous system?

Slower

23

What is controlled by the endocrine system?

Hormonal control

24

In the endocrine system, what releases hormones into the blood stream?

Endocrine glands

25

What is the name of cells sensitive to hormones?

Target tissues

26

What molecule is the only source of energy for brain cells?

Glucose

27

What is the definition of multicellular?

An organism made up of many cells

28

After eating is the level of glucose high or low?

High

29

What is excess glucose stored in the form of and where?

Glycogen in the liver

30

What helps to promote the conversion of glucose to glycogen?

Insulin produced in the pancreas