OCR GCSE Biology A Unit 1: Cell Level Systems

studied byStudied by 12 people
0.0(0)
Get a hint
Hint

Light Microscope

1 / 27

28 Terms

1

Light Microscope

Used to view whole cells or large subcellular structures of the cell.

New cards
2

Electron Microscope

Used to view subcellular structures more clearly and in more depth.

New cards
3

Nucleus

Controls the cell and contains genetic material.

New cards
4

Cytoplasm

Site where most chemical reactions occur.

New cards
5

Cell membrane

Barrier controlling the movement of substances into and out of the cell.

New cards
6

Mitochondria

Contains enzymes responsible for carrying out cellular respiration.

New cards
7

Cell wall

Made up of cellulose and gives the cell structural support (found in plant cells).

New cards
8

Vacuole

Contains cell sap and provides support (found in plant cells).

New cards
9

Chloroplasts

Site of photosynthesis and contains chlorophyll (found in plant cells).

New cards
10

Prokaryotes

Cells with nuclear material freely within the cytoplasm (e.g. bacteria).

New cards
11

Eukaryotes

Cells with a nucleus enclosed by a nuclear membrane (e.g. human cheek cell, amoeba, plant cells).

New cards
12

DNA

Polymer made up of two strands forming a double helix.

New cards
13

Protein Synthesis

Process of creating proteins from amino acids.

New cards
14

Enzymes

Biological catalysts that speed up chemical reactions inside organisms.

New cards
15

Active site

Site at which substrates fit into the enzyme.

New cards
16

Factors Affecting Enzyme Controlled Reactions

Temperature, pH, substrate concentration, and enzyme concentration.

New cards
17

Cellular Respiration

Process occurring inside plant and animal cells to release energy.

New cards
18

Aerobic Respiration

Respiration that occurs in the presence of oxygen.

New cards
19

Anaerobic Respiration

Respiration that occurs without the presence of oxygen.

New cards
20

Breakdown of Biological Molecules

Process of breaking down large molecules into smaller molecules using enzymes.

New cards
21

Carbohydrase

Enzyme that breaks down carbohydrates into glucose.

New cards
22

Protease

Enzyme that breaks down proteins into amino acids.

New cards
23

Lipase

Enzyme that breaks down lipids (fats) into fatty acids and glycerol.

New cards
24

Synthesis of Biological Molecules

Process of using smaller molecules to synthesize larger molecules needed by cells.

New cards
25

Photosynthesis

Process used by plants to make their own food using light energy, carbon dioxide, and water.

New cards
26

Endothermic

Reaction that absorbs heat energy from the surroundings.

New cards
27

Investigating Photosynthesis

Experiment to study the factors affecting the rate of photosynthesis.

New cards
28

Factors Affecting Photosynthesis

Temperature, carbon dioxide concentration, and light intensity.

New cards

Explore top notes

note Note
studied byStudied by 17 people
... ago
5.0(1)
note Note
studied byStudied by 20 people
... ago
5.0(2)
note Note
studied byStudied by 4 people
... ago
5.0(2)
note Note
studied byStudied by 33 people
... ago
5.0(1)
note Note
studied byStudied by 4 people
... ago
5.0(1)
note Note
studied byStudied by 18 people
... ago
5.0(2)
note Note
studied byStudied by 12 people
... ago
5.0(1)
note Note
studied byStudied by 147 people
... ago
5.0(3)

Explore top flashcards

flashcards Flashcard (50)
studied byStudied by 13 people
... ago
5.0(1)
flashcards Flashcard (300)
studied byStudied by 6 people
... ago
5.0(1)
flashcards Flashcard (30)
studied byStudied by 5 people
... ago
5.0(1)
flashcards Flashcard (46)
studied byStudied by 4 people
... ago
5.0(1)
flashcards Flashcard (171)
studied byStudied by 1 person
... ago
5.0(1)
flashcards Flashcard (92)
studied byStudied by 109 people
... ago
5.0(1)
flashcards Flashcard (56)
studied byStudied by 7 people
... ago
5.0(1)
robot