Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
logo
  • AQA
  • A Level Biology
  • Unit 3 - Organisms exchange substances with their environment
To add items to your wishlist, you must be logged in
Document preview thumbnail
Preview 4 out of 67 pages
Other

AQA A-Level Biology Flashcards - Unit 3

0.0
(0 reviews)
- sold
67 pages
2023/2024 Written for academic year
Institution
AQA
Course
Unit 3 - Organisms exchange substances with their environment
Document preview thumbnail
Preview 4 out of 67 pages

A* Grade Flashcards for AQA Biology In depth and condensed for quick studying Save time creating resources , begin active recall immediately instead

Content preview

Unit 3 Flashcards

,What are the features of
specialised exchange
surfaces?



QUESTION

Large SA
Very thin shirt diffusion
distance
Selectively permeable
Moving external medium
conc grad
Moving internal medium
ANSWER

, How are respiratory gases
exchange along a diffusion
gradient in insects?



QUESTION
Oxygen conc falls at end of
tracheoles diff grad established
Diffuses from atmosphere to
cells
CO2 rises there opposite diff
grad established diffuses along
tracheoles to atmosphere
Diffuses faster in air than water
ANSWER

, How are respiratory gases
exchanged by mass
transport insects?



QUESTION


Muscles contract
Squeeze trachea
Mass movements of air in
and out
Speeds up exchange

ANSWER

Document information

Study Level
A/AS Level
Subject
A Level Biology
Uploaded on
September 8, 2025
Number of pages
67
Written in
2023/2024
Type
Other
Person
Unknown
Report Copyright Violation
$7.01
Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF
Seller avatar
liambloomer
Sold
0
Followers
0
Items
8
Last sold
-
Available in package deal
Product Image
Package deal
AQA A-Level Biology Flashcards COMPLETE COURSE (UNITS 1-8)
-
-
Sold
8
item
Sep 2025
$56.09
$31.60
You save 44% More Info

Browse related subjects

Subjects

  • a level
  • a grade
  • biology
  • unit 3
  • exchange

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Learn more Create citation
Working on your references?

Frequently asked questions