Midterm revision for preig

Match the following terms with the correct definitions

• pathogen

• Biological catalyst that speed up metabolic reactions

• cell differentiation

• Organisms that does not contain a nucleus.

• eukaryotes

• An organism that causes disease.

• prokaryotes

• Organisms that contain a nucleus.

• enzymes

• The process in which the cells become

  specialized

Match the following levels of organisations with their definition

• A group of organs work

  together

• tissue

• The basic unit of function and
  structure

• organ

• A group of cells work
  together

• cell

• A group of tissues work

  together

• organ system

Reorder the following levels of organisations start from the smallest one

• organ

• organ system

• Tissue

• Cell

List the eight characteristics of living organism hint: Mrs C GREN

Label the plant cell

a

b

c

d

e

f

g

h

mitochondria

vacuole

cell wall

chloroplast

cell membrane

ribosome

nucleus

cytoplasm

Reorder the following steps of an enzyme catalyzing the breaking down of a substrate.

• 
• 
• 
• 

Match the following organelles with their functions

• cytoplasm

• protein synthesis

• nucleus

• contains genetic information.

• ribosome

• watery jelly like liquid which contains all of the organelles and enzymes.

• chloroplast

• contains chlorophyll, carry out photosynthesis

• cell membrane

•  forms a boundary between the cytoplasm and the outside of the cell; partially permeable.

Match the following functions with the correct organelle

• cell wall

• made of cellulose, protects and keeps the cell’s shape.

• cytoplasm

• watery jelly like liquid which contains all of the organelles and enzymes.

• mitochondria

• carry out the reactions of aerobic respiration, release energy.

Organize these organisms into the right categories of cell wall components.

Groups:

(a) cellulose

,

(b) peptidoglycan

,

(c) chitin

,

(d) no cell wall

• bacteria

• animals

• fungi

• plant

Organize these organisms into the right categories of carbohydrate storage

Groups:

(a) glycogen

,

(b) starch

• fungi

• bacteria

• animals

• plants