Chapter 1 Biology

Question 1

Characteristics of living things

Answer 1

1. Growth
2. Movement
3. sensitivity
4. excretion
5. reproduction
6. Nutrition
7. respiration

Question 2

Things that all characteristics of living things have in common

Answer 2

.Cytoplasm
.cell membrane
.DNA
.Ribosomes 
.enzymes

Question 3

DNA?

Answer 3

It is a chemical form which our chromosomes are made of

The DNA molecule is made out of strings of smaller molecule, containing four different bases they are called A,C,G,T

Question 4

Characteristics of the animal cell

Answer 4

Multicellular

Have a nucleus but no cell wall or chloroplast

Feed on organic substances made by other living organisms

Question 5

Characteristics of plant cell

Answer 5

Multicellular

Cells have a nucleus,cell walls made out of cellulose and often contain chloroplast

Feed on photosynthesis

May have roots,stems and leaves

Question 6

Characteristics of fungi

Answer 6

Usually multicellular

Have a nuclei

Have cell walls not made of cellulose

Do not have chlorophyll

Feed on parasite nutrition

Question 7

Charasteristics of protoctista

Answer 7

Multicellular or unicellular,cells have a nucleus, may or may not have a cell wall and chloroplasts, some feed by photosynthesis and some feed on organic substances

Question 8

Characteristics of prokaryotes

Answer 8

Often unicellular, no nucleus, have cell walls that are not made of cellulose, have no mitochondria

Question 9

Characteristics of ferns

Answer 9

Plants with roots stems and leaves, have leaves called fronds, do not produce flowers,reproduce by spores