B1

5.0(1)
studied byStudied by 15 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/32

flashcard set

Earn XP

Description and Tags

Biology

GCSE Biology

9th

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

33 Terms

1
New cards
Nucleus
Controls cell
2
New cards
Cytoplasm
Where the chemical reactions happen
3
New cards
Mitochondria
Energy for the cell
4
New cards
Chloroplasts
Helps photosynthesis
5
New cards
Cell wall
Keeps cells structure
6
New cards
Cell membrane
Protects cells from unwanted things
7
New cards
Vacuole
Holds sap for cell
8
New cards
Diffusion
From high concentration to low
9
New cards
What are the two types of cells?
Eukaryotic and Prokaryotic
10
New cards
Plasmid
DNA molecule
11
New cards
flagellum
tail for swimming
12
New cards
ribosomes
make proteins
13
New cards
What are the advantages of light microscopes?
can look at live specimens

is cheap

training isnt needed
14
New cards
What are the disadvantages of light microscopes?
low resolutions

low magnification

needs stains
15
New cards
What are the advantages of electron microscopes?
view more organelles
16
New cards
What are the disadvantages of electron microscopes?
costs lost of money

specimens need to be in a vacuum

training is required
17
New cards
resolution
smallest distance between two points
18
New cards
magnification
the size of the object can be changed to make an image clearer
19
New cards
What is protein synthesis?
the creation of protein by cells that use DNA and RNA
20
New cards

21
New cards
What are the four bases in nucleotides?
Thymine

Cytosine

Guanine

Adenine
22
New cards
What are the complementary base pairings?
c & g

a & t
23
New cards
What is an enzyme?
biological catalyst
24
New cards
What affects the enzymes rate of reaction?
Enzyme concentration

pH

substrate concentration

temperature
25
New cards

What is anaerobic respiration?

Glucose — Lactic Acid

is in oxygen debt

26
New cards

What is aerobic respiration?

glucose + oxygen — carbon dioxide + water

supply of oxygen

27
New cards
What is cellular respiration?
an exothermic reaction that supplies ATP to cells
28
New cards
What is lipids?
is made of 3 fatty acids and glycerol and is broken down by lipase
29
New cards
What is protein?
A polymer made of amino acids broken down by protease
30
New cards
What is a carbohydrate?
a polymer made of simple sugars broken down by amylase
31
New cards
What is the formula of photosynthesis?
6CO2 + 6H2O → C6H12O6 + 6O
32
New cards
What factors affect the rate of photosynthesis?
temperature

light intensity

carbon dioxide concentration
33
New cards
What is a limiting factor?
factors that limit photosynthesis