cell structure

Question 1

what is the cell membrane?

Answer 1

A semi permeable protective layer which holds the cell together, it also recognizes signals from other cells and allows for communication between cells

Question 2

what is the cell wall?

Answer 2

Made of a tough substance called cellulose, surrounds the plant cell and gives it its shape

Question 3

centrioles

Answer 3

found near the nucleus, they help the cell during cell division and are only found in animal cells

Question 4

chloroplast

Answer 4

organelles which contain a green chemical called chlorophyll. These give plants their colour and is the site of photosynthesis

Question 5

cytoplasm

Answer 5

a jelly like substance which holds the organelles in place

Question 6

Endoplasmic reticulum( smooth)

Answer 6

synthesises fats or lipids to create membranes

Question 7

Endoplasmic reticulum(rough)

Answer 7

has ribosomes attached and is responsible for completing the synthesis of proteins

Question 8

Golgi body

Answer 8

Is the post office of the cell. It packages, modifies, and transports materials to different locations inside and outside of the cell

Question 9

Lysosomes

Answer 9

Break down food into particles, the rest of the cell can use and to digest waste

Question 10

Mitochondria

Answer 10

The powerhouse of the cell. It uses cellular respiration to convert simple substances into energy( ATP)

Question 11

Nuclear membrane

Answer 11

surrounds the nucleus and is covered with nuclear pores

Question 12

Nucleolus

Answer 12

where the DNA is found and produces ribosomes

Question 13

Nucleolus

Answer 13

where the DNA is found and produces ribosomes

Question 14

nucleus

Answer 14

control center of the cell and contains DNA

Question 15

ribosomes

Answer 15

Read DNA instructions to synthesise and package proteins. Some of the proteins may be used by the cell, others are sent out of the cell

Question 16

Vacuole

Answer 16

Used to store material in the cell. in plants, is also responsible for turgor. Bigger in plant cells

Question 17

Vesticles

Answer 17

Used to move material around the cell

Question 18

what organelles are found only in the plant cell

Answer 18

chloroplasts, cell wall and vacuole

Question 19

what is diffusion

Answer 19

The movement of individual molecules of a substance through a semi permeable barrier
It occurs from high concentration area to a low concentration area

Question 20

What is osmosis

Answer 20

The movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules
Through a cells semipermeable barrier