Cells and Enzymes

Question 0

Function of Cytoplasm

Answer 0

Where chemical reactions take place

Question 1

Function of the Cell Membrane

Answer 1

Controls substances entering and leaving the cell

Question 2

Function of Nucleus

Answer 2

Controls the activities of the cell

Question 3

Function of Cell Wall

Answer 3

Supports the cell

Question 4

Function of Chloroplasts

Answer 4

Absorb light for photosynthesis

Question 5

Function or Vacuole

Answer 5

Space filled with cell sap (a dilute solution of sugars and mineral salts)

Question 6

List parts of the Bacteria Cell

http://dvbiology.org/biologyweb/bbact.htm

Answer 6

Ribosome 
Cell wall
Mitochondria 
DNA 
Cytoplasm 
Cell membrane 
Pilus 
Fagella

Question 7

Function of ribsomes

Answer 7

Where proteins are made

Question 8

Function of Mitochondria

Answer 8

Where respiration reactions take place

Question 9

Function of Flagella

Answer 9

Propels the cell

Question 10

Function of DNA strand

Answer 10

Holds the genetic information (chromosomes)

Question 11

Function of Pilus

Answer 11

Pilus is a protein rod that helps the bacteria cells to attach to each other

Question 12

How do Bacteria reproduce?

Answer 12

Dividing into two to form clones

Question 13

Give an example of Fungi

Answer 13

Mushrooms
Toadstools
Mould
Yeast

Question 14

Which cell is larger… Bacteria or Yeast?

Answer 14

Yeast

Question 15

How does Yeast (fungi) reproduce?

Answer 15

Asexually by a process called budding

Question 16

List parts of the Fungi cell

Answer 16

Nucleus 
Oil droplet
Cell wall
Vacuole 
Glycogen granule

Question 17

Which is smaller…. Viruses or Bacteria?

Answer 17

Viruses

Question 18

Explain parts of a virus cell

Answer 18

They contain a PROTEIN COAT surrounding a number of GENES

Question 19

How do viruses reproduce?

Answer 19

They can only reproduce in a HOST CELL, this destroys the host cell as the new viruses are released. They are free to attack other cells

Question 20

List the parts of a SINGLE CELLED algae

Answer 20

Nucleus 
Cell wall
Chloroplasts
Vacuole 
Flagella
Resivour
Cell membrane
Cytoplasm

Question 21

Which two cells can photosynthesise and why?

Answer 21

Plant cell and Single celled algae

They have chloroplasts

Question 22

Which two cells divide into two clones when reproducing?

Answer 22

Bacteria and algae

Question 23

Scientist call viruses the ‘organisms on the edge of life’ WHY?

Answer 23

They need to be inside a host cell in order to survive but they do have genes so they are living organisms

Question 24

How are cells controlled?

Answer 24

The cells activity depends on chemical reactions which are controlled by ENZYMES

Question 25

What are proteins made of?

Answer 25

Proteins are made of different AMINO ACIDS linked together to form a CHAIN

Question 26

What are enzymes?

Answer 26

Proteins

Question 27

What are the 3 important functions of proteins?

Answer 27

Enzymes Hormones (e.g insulin) Muscle tissue

Question 28

What happens the chain is formed by amino acids?

Answer 28

It is folded to form a specific shape - Active Site

Question 29

Definition for Enzyme

Answer 29

An enzyme is a biological catalyst that speeds up a reaction but does not take part in the reaction.

Question 30

Enzymes have an active site, what is the name for the 'specific' she that fits in it?

Answer 30

Substrate

Question 31

When the substrate is fitted in the active site it's called?

Answer 31

Enzyme/substrate complex

Question 32

What changes and what stays the same at the end of a reaction?

Answer 32

Enzymes active site stays the same but the 'product' changes

Question 33

What effects the work of am enzyme?

Answer 33

Temperature and pH

Question 34

What is the best pH and temperature called for an enzyme?

Answer 34

Optimum temperature/pH

Question 35

When osmosis happens, water moves into the PLANT cell what happens?

Answer 35

Becomes Turgid

Question 36

When osmosis happens, if the water is moving out of the PLANT cell then what happens?

Answer 36

Becomes flaccid

Question 37

During osmosis, if the cells of an ANIMAL cell fill with water the cell may....

Answer 37

Swell and burst

Question 38

During osmosis, if an ANIMAL cell's water moves out the cell....

Answer 38

Shrivels

Question 39

Why doesn't the plant cells shrivel or burst?

Answer 39

They have a cell wall