Science Additional - Biology

HideShow resource information
  • Created by: JacobCa
  • Created on: 07-06-16 20:28
What does an animal cell have in?
Cell Membrane, Nucleus, Cytoplasm, Mitochondria, Ribosomes
1 of 54
What does a plant cell have in?
Cell Membrane, Nucleus, Cytoplasm, Mitochondria, Ribosomes, Cell Wall, Permament Vacuole, Chloroplasts
2 of 54
What is different about a Bacteria cell?
They have no nucleus and are also single celled - therefore the genetic material floats in the cytoplasm
3 of 54
What happens in the chloroplasts?
Photosynthesis occurs
4 of 54
What happens in the ribosomes?
Proteins are made in the cell
5 of 54
What is diffusion?
The spreading out of particles from an area of high concentration to area of low concentration
6 of 54
What is clever about cell membranes?
They hold the cell together, but can also let stuff in and out too.
7 of 54
What is a palisade leaf cell?
They are adapted for photosynthesis, and are packed with chloroplasts
8 of 54
What are gaurd cells adpated for?
Adapted to close and open pores to conserve water
9 of 54
What are red blood cells adpated for?
To carry oxygen
10 of 54
What are sperm and egg cells adapted for?
For reproduction
11 of 54
What can embryonic stem cells do?
They can turn into any type of cell
12 of 54
Where are stem cells usually found?
In early human embryos
13 of 54
Why are people against stem cell use?
They think it is unfair to use babies for reasearch. In some countries it is illegal to do so.
14 of 54
How many chromosones are there in every body cell?
23 pairs
15 of 54
What is different about the 23rd pair?
Either labelled XX (if it is a women) or XY (if it is a man)
16 of 54
What is an allele?
A different version of the same gene
17 of 54
What is a chromosone?
A long strand of DNA
18 of 54
What does a chromosone contain?
All the instructions to put an organism together and make it work
19 of 54
What is a gene?
A section of DNA
20 of 54
How do cells make proteins?
Cells make proteins by stringing amino acids together in a particular order
21 of 54
What is DNA fingerprinting used for?
For forensic science and Paternity testing
22 of 54
Why are biological detergents called so?
Because they contain enzymes
23 of 54
Why are biological detergents better for the enviroment?
The detergent works better at a lower tempreture (around 30 degrees)
24 of 54
Why are enzymes used in Baby foods?
So the proteins are pre - digested and work easier
25 of 54
Advantages of using enzymes in industry
Using lower temprature saves money. Enzymes can work for a long time, so they can be continually used. They are biodegradable and cause less pollution
26 of 54
Disadvantages of using enzymes in industry
Some people develop allergies to them. Enzymes denature in a small change of temprature. Enzymes can be expensive to produce.
27 of 54
What does an increase in muscle activity mean?
Means that more glucose and oxygen needs to be supplied to the muscle cells. Extra Co2 needs to be removed from the muscle cells - the blood has to flow faster
28 of 54
What is used during excercise?
Glycogen
29 of 54
What sometimes happens to glucose?
Sometimes glucose from food is stored as Glycogen
30 of 54
What does each muscle have?
Its own store of Glycogen
31 of 54
What happens to the glycogen in vigorous activty?
Glycogen has to be converted back to glucose quickly
32 of 54
When is Anerobic respiration used?
When there isnt enough oxygen available
33 of 54
Word equation for Anerobic respiration?
Glucose ------> Energy + Lactic Acid
34 of 54
What is respiration?
The Process of releasing energy from the breakdown of glucose. It happens in every cell of your body.
35 of 54
Where do most of the reactions in aerobic respiration take place?
In the mitochondria
36 of 54
Word eqaution for aerobic respiraton?
Glucose + Oxygen --------> Carbon Dioxide + Water + Energy
37 of 54
What is energy released by respiration used for?
To build up larger molecules from smaller ones. In animals, to allow the muscles to contract, In mammals and birds the energy is used to keep body temp steady. In plants to build sugars, nitrates and other nutrients to amino acids.
38 of 54
What do digestive enzymes do?
Break big molecules into smaller ones
39 of 54
What does amylase do?
Converts starch into sugars. Starch --Amylase--> Sugars
40 of 54
What does protease do?
Converts Proteins to amino acids. Proteins --Protease--> Amino Acids
41 of 54
What does Lipase do?
Converts Lipids to Gylcerol and fatty acids. -- Lipids --Lipase--> Gycerol and Fatty acids
42 of 54
What does bile do?
Neutralises stomach acid and emulsifes fats.
43 of 54
What is an enzyme?
Catalysts produced by living things
44 of 54
What is a catalyst?
A substance which increases the speed of a reaction without being used up or being changed in the reaction.
45 of 54
What are all Enzymes?
They are all proteins
46 of 54
What temprature do enzymes work best at?
37 degrees
47 of 54
What is a habitat?
A place where an organism lives
48 of 54
What is the distribution of a organism?
The place where an organism is found
49 of 54
What enviormental factors change why a organism may be found?
Temprature, Availability of water, Availability of CO2 and O2, Availability of Nutrients, Availability of light
50 of 54
What did Mendel find?
How charecteristics in plants were passed on through generations
51 of 54
What is cystic fibrosis caused by?
A recessive allele
52 of 54
Why does extinction happen?
Because a species cannot evolve quickly enough
53 of 54
What is speciation?
A development of a new species
54 of 54

Other cards in this set

Card 2

Front

What does a plant cell have in?

Back

Cell Membrane, Nucleus, Cytoplasm, Mitochondria, Ribosomes, Cell Wall, Permament Vacuole, Chloroplasts

Card 3

Front

What is different about a Bacteria cell?

Back

Preview of the front of card 3

Card 4

Front

What happens in the chloroplasts?

Back

Preview of the front of card 4

Card 5

Front

What happens in the ribosomes?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Biology resources »