B2

?
What cell has a nucleas? What does it do?
Animal and plant cells, it contains genetic material and controls the activites of the cell.
1 of 58
What cell has mitochondria? What does it do?
Both animal and plant cells, it is where most reactions for respiration happen.
2 of 58
What cell has ribosomes? What do they do?
Both plant and animal cell, it is where they make protein.
3 of 58
What cell has cell membrane's? What does it do?
Both plant and animal, it controls what goes in and out and holds the cell together.
4 of 58
What cell has cytoplasm? What does it do?
Both plant and animal, it is where most reaction happen and contains enzymes that control these chemical reactions.
5 of 58
What cell has a cell wall? What does it do?
In plant cells, it supports and strengthens the cell.
6 of 58
What cell has a permanent vacuole? What does it do?
In plant cells, it contains cell sap which is a solution of sugars and salts.
7 of 58
What cell has chloroplasts? What do these do?
In the plant cell, it is where photosynthesis occurs as it contains chlorophyll which absorbs sunlight.
8 of 58
Which single celled organism (microorgnism) has a nucleas, cytoplasm, cell membrane and a cell wall?
Yeast.
9 of 58
What cell has no nucleus?
Bacterial cell, they instead have a floating genetic material.
10 of 58
What is the definition of diffusion?
The spreading out or particles from an area of high concentration to a low concentration.
11 of 58
The bigger the difference in concentration, the ..... the diffusion rate.
faster
12 of 58
Which process makes cells specialised?
Differentiation
13 of 58
What is a tissue?
A group of similar cells that work together to carry out a particular function
14 of 58
What is the function of a muscular tissue?
it contracts to move whatever it's attatched to.
15 of 58
What is the function of a glandular tissue?
it makes and secretes chemicals like enzymes and hormones.
16 of 58
What is the function of the Epithelial tissue?
It covers some parts of the body.
17 of 58
What is an organ?
A group of tissues
18 of 58
What is the organ system?
A group of organs working together to perform a particular function.
19 of 58
Name three organs
Stomach, Liver, salivary glands, large intestine, small intestine
20 of 58
What is the mesophyll tissue in a plant?
It is where photosynthesis occurs
21 of 58
What is the function of the xylem and phloem?
They transport things around the plant
22 of 58
What does the Epiderman tissue do?
It covers the plant
23 of 58
What is the photosynthesis word equation?
Carbon dioxide+water--> glucose+oxygen
24 of 58
Name 3 Limiting Factors
Light, CO2 and tempreture
25 of 58
Name 3 ways plants use glucose?
For resiration, making cell walls, making proteins
26 of 58
Name 3 enviromental factors that affect where an organism is found
Tempreture, amount of water, amount of oxygen, amount of nutrients and amount of light.
27 of 58
How do you measure how common an organism is in two sample areas?
Using a quadrat
28 of 58
How do you calculate population size?
Mean number of organisms per m2 X Total area
29 of 58
When collecting data wha do you need to keep in mind?
Reliability and validity
30 of 58
What is an enzyme?
A biological catalyst, protein
31 of 58
What is a catalyst?
A substance that increases the rate of a reaction without being used up or changed in the reaction
32 of 58
What affects the rates of enzymes?
Tempreture (denatures at 45) and PH level (mostly PH 7)
33 of 58
What does amalayse convert? Where can it be found (3)?
Starch into sugars, salivary glands, pancreas and small intestine
34 of 58
What does protease convert? Where can it be found (3)?
Proteins into amino acids, stomach (pepsin), pancreas and small intestine
35 of 58
What does lipase convert? Where can it be found (2)?
Lipids into fatty acids and glycerol, pancreas and small intestine
36 of 58
What does bile do? Where does it go?
It emulsifies fats and neutralises the stomach acid (by being an alkaline) and its made in the liver, stored in the gall bladder and is released into the small intestine
37 of 58
What is the definiton of respiration?
The process of releasing energy from glucose
38 of 58
What is aerobic respiration?
Respiration using oxygen (in the mitochondria)
39 of 58
What is the word equation for Aerobic respiration?
Glucose + Oxygen--> Carbon dioxide + water + ENERGY
40 of 58
Name three ways energy from aerobic respiration is used?
To build large molecules from smaller ones, to allow muscles to contract, to keep body tempreture steady and to build nutrients into amino acids
41 of 58
What does excersize do to your body?
Increases breathing rate to meet the deman for extra oxygen and increases the speed of heart for the blood to flow faster.
42 of 58
What is anerobic respiration?
Respiration without oxygen
43 of 58
What is the word equation for this?
Glucose--> energy+lactic acid
44 of 58
What does anerobix respiration lead to?
Oxygen dept, you keep breathing heavily to regain the oxygen in your blood
45 of 58
Name two uses of enzymes in industry
Biological detergants, change foods
46 of 58
Name two disadvantages of using enzymes in industry
people can develop allergies to them, they need to be tightly controlled, they are expensive to produce and contamination of the enzyme with other substances can affect the reaction
47 of 58
Name two advantages of using enzymes in industry
They're specific, it saves energy, they can be used for a long time (they don't get used up) and they are biodegradible
48 of 58
Where is a gene?
In a setion of DNA which is in a chromosome which is in a nucleas
49 of 58
What is DNA fingerprinting used in?
Forensic science and paternity testing
50 of 58
What is mitosis?
When a cell reproduces itself by splitting to form two identical offspring(this may be for growth and repair)
51 of 58
What is meiosis?
A process which produces cells with half the normal number of chromosomes
52 of 58
How many chromosomes do gametes have?
Half the normal amount, 23 chromosomes each
53 of 58
What can Embryonic stem cells do?
They can turn into any type of cell
54 of 58
Who was Mendel?
He noted characteristics in plants and by using pea plants
55 of 58
What is an allele?
A different version of the same gene
56 of 58
What does a Homozygous organism have?
It has two alleles of the same genes
57 of 58
What does a Heterozygous organism have?
It has two alleles of different genes
58 of 58

Other cards in this set

Card 2

Front

What cell has mitochondria? What does it do?

Back

Both animal and plant cells, it is where most reactions for respiration happen.

Card 3

Front

What cell has ribosomes? What do they do?

Back

Preview of the front of card 3

Card 4

Front

What cell has cell membrane's? What does it do?

Back

Preview of the front of card 4

Card 5

Front

What cell has cytoplasm? What does it do?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

B3d-f
B3a-c
See all Biology resources »See all Biology 2 resources »