Brainscape's Knowledge GenomeTM

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


See full index

Term 1 > Biology EXAM > Flashcards

Biology EXAM Flashcards

1
Q

Define homeostasis

A

physiological state of the body despite fluctuations in the external environment

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

Define steady state

A

Is the constant level of an organisms internal environment

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

Negative feedback

A

When the response feeds back and counter reacts the change in the variable. Example: body temp

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

Positive feedback

A

Increases the deviation from an idea normal value. Example: child birth

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

Hypothermia

A

Occurs when a person is suddenly exposed to extreme cold.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Hypothyroidism

A

Condition in which there is an overbundance in thyroid hormone production

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

Diabetes

A

Is a condition which blood glucose levels are too high

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

Hyperglycaemia

A

A condition where glucose levels in the blood rise above normal

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

Hypoglycaemia

A

Where glucose levels in the blood drop below normal

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

Structural adaptions

A

Features of the shape and structure of the organism that helps it to survive it’s environment

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

Behavioural adaptions

A

Behaviours undertaken by an organism that’s helps it survive

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

Physiological adaptions

A

Features of the organisms internal physiology eg: body temp

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

Eukaryotes

A

A cell which has a nucleus

Example:

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

Prokaryotes

A

Unicellular, has no organised nucleus

Example: DNA

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

Function of mitochondria

A

Produces energy through cellular respiration

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

Function of rough endoplasmic reticulum

A

Transports and stores proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Function of smooth endoplasmic reticulum

A

Creates lipids and fats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Function of ribosomes

A

Creates proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Function of chloroplast

A

Creates glucose

20
Q

Function of Golgi apparatus

A

Packages and releases proteins and lipids

21
Q

Function of cytoplasm

A

Where all chemicals take place

22
Q

Function of centrioles

A

Cellular division and reproduction

23
Q

Function of red blood cells

A

Carries oxygen and glucose

24
Q

Function of vacuole

A

Contains water and food

25
Q

Function of cell membrane

A

Controls Inputs and outputs, protects it from its surroundings

26
Q

Function of the nucleus

A

Controls growth and reproduction, control centre

27
Q

Function of lysomes

A

Contains hydrolytic enzymes for digestion

28
Q

Function of vesicles

A

Move proteins, lipids and carbohydrates

29
Q

Function of lipids

A

Attached to proteins

30
Q

Difference between an animal and plant cell

A

Is that their is no cell wall and chloroplast in an animal cell but it is in a plant cell

31
Q

Unicellular organism

A

The body of the organism is composed of a single cell

32
Q

Multicellular organism

A

The body of the organism is composed of numerous cells

33
Q

Surface to volume ratio

A

The smaller the size of the area the bigger the surface area to volume ratio is

34
Q

Cell membrane function

A

The plasma membrane forms an outer shell boundary of the living compartment of every cell

35
Q

Osmosis

A

A case of diffusion that relates to the movement of solvents in biological systems

36
Q

Facilitated diffusion

A

Is protein medicated transport, it dissolves substances required in the action of protein

37
Q

Simple diffusion

A

Is the movement of substances across the phospholipid layer from a region of high concentration to low concentration

38
Q

Isotonic

A

Having the same concentration of dissolved substances as the solution

39
Q

Hypertonic

A

Having higher concentration of dissolved substances than the solution to which it is compared

40
Q

Hypotonic

A

Having lower concentration of dissolved substances

41
Q

Aerobic respiration

A

Can only occur in the presence of oxygen in the mitochondria

42
Q

Aerobic respiration chemical equation

A

Glucose - oxygen - carbon dioxide - water - energy

43
Q

Anaerobic respiration

A

Occurs in the absence of oxygen in the cytoplasm

44
Q

Anaerobic respiration chemical equation

A

Glucose - lactic acid - Energy

45
Q

Adaptations

A

Features that appear to equip an organism for survival in a particular habitat

Term 1 (4 decks)

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