Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Mocks > Biology Topic 6-8 > Flashcards

Biology Topic 6-8 Flashcards

1
Q

How do you calculate BMI (Body Mass Index)?

A

BMI = Mass(Kg)

(Height(m))squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

3 examples of Homeostasis

A

Osmoregulation (water content)
Thermoregulation (body temperature)
Blood glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is homeostasis?

A

Maintaining a constant internal environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What glands produce (and secrete) hormones?

A

Endocrine glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name all the endocrine glands

A 
Adrenal gland
The pituitary gland
Thyroid gland
The pancreas
Ovaries (female)
Testies (male)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name Four hormones which control the menstrual cycle

A

FSH (follicle stimulating hormone)
Oestrogen
LH (lutenising hormone)
Progesterone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Whats the difference between Nerones and Hormones?

A

Neurones: very fast action, act for very short time, act on very precise area
Hormones: slow action, act for a long time, act in more general way

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is adrenaline released by and what does it prepare us for?

A

Released by the adrenal glands

Prepares us for ‘fight or flight’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does thyroxine regulate?

A

Metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the two methods of helping somebody who is infertile?

A

Clomifene therapy- gives woman more FSH and LH to stimulate maturation of egg and ovulation
IVF ( In Vitro Fertilisation) - fertalise egg in a lab, fertalised egg transfered into womans uterus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What contraceptives can you use to prevent pregnancy?

A

The pill- contains oestrogen and progesterone

Barrier methods like condoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does diabetes type 1 mean?

A

Pancreas produces little to no insulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does diabetes type 2 mean?

A

Pancreas doesnt produce enough insulin or body doesnt recognise it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How to calculate surface area to volume ratio?

A

Volume = length X Width X Height

Divide ratio by volume to get in form n:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What do red blood cells do?

A

Carry oxygen in the blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What do red blood cells contain which bind to the oxygen to make oxyhaemeglobin?

A

Haemeglobin

17
Q

What do white blood cells do ?

A

Defend against infection

18
Q

How do white blood cells defend against infection?

A

By producing antibodies against that specific antigen

19
Q

What do platelets do?

A

Help with blood clots

20
Q

What does plasma do?

A

Plasma is the liquid that carries everything in blood

21
Q

What do arteries do?

A

Carry oxygenated blood away from the heart towards the body

22
Q

Characteristics of arteries

A 
Very thick muscular wall to deal with high pressures
Small lumen(cross section)
23
Q

Characteristics of capilaries

A

They are very small
Single cell thick wall to easily allow diffusion
Small lumen
Millions of them in the lungs

24
Q

What do veins do?

A

Carry deoxygenated blood to the heart

25
Q

Characteristics of veins

A

Large lumen
Small walls
Contain valves to prevent bakcflow of blood

26
Q

What are the four chambers of the heart?

A

Right atrium
Right ventricle
Left atrium
Left ventricle

27
Q

How do you calculate cardiac output?

A

Heart rate X Stroke volume

28
Q

What blood vessel carries deoxygenated blood back to the right atrium?

A

Vena cava

29
Q

What circulatory system do mammals have?

A

A double circulatory system, means the heart pumps blood round the body in two circuits.

30
Q

Diffusion definition

A

The movement of particles from an area of high concentration to an area of low concentration

31
Q

Word equation for photosynthesis

A

Carbon dioxide + water -> glucose + oxygen

32
Q

What is a limiting factor?

A

It restricts the rate of reaction

33
Q

Whats the chemical formula for glucose?

A

C6 H12 O6

34
Q

How do you calculate light intensity?

A

1

(Distance)2

35
Q

Describe the palisade mesophyll

A

Palisade mesophyll is a row of cells containing many cholorplasts located below the epidermis

Mocks (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions