Cells

Question 1

What is meant by Cytology?

Answer 1

The study of cells

Question 2

Define a cell

Answer 2

It is the smallest unit of life.

Question 3

What are the three main parts of a cell?

Answer 3

The Cell Membrane
The Cytoplasm
The Nucleus

Question 4

Define Cell Membrane

Answer 4

The outer membrane of a cell.

Question 5

Give another name for Cell Membrane

Answer 5

Plasma Membrane

Question 6

State the functions of the cell membrane

Answer 6

1. It separates the material outside the cell from the material inside the cell.
2. It will decide what enters and exits the cell.
3. Gives it’s structure.

Question 7

What is found in the cell membrane?

Answer 7

Phospholipids
Steroids
Proteins
Carbohydrates

Question 8

What is the function of the proteins found in the cell membrane?

Answer 8

1. Provides structural support
2. Acts as receptor sites
3. Forms channels for the passage of materials.

Question 9

Define Nucleus

Answer 9

It is the control center of the cell and contains the genetic material of the cell.

Question 10

What is the function of the nucleus in a cell?

Answer 10

1. Control and regulate the activities of the cell.
2. Forms Ribosomes.

Question 11

Define Cytoplasm

Answer 11

The fluid inside a cell but outside the cell’s nucleus.

Question 12

What are the functions of the Cytoplasm?

Answer 12

1. It provides a platform upon which other organelles can operate within the cell.
2. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.

Question 13

Cytoplasmic Organelles are…

Answer 13

The little organs found in a cell’s cytoplasm.

Question 14

Give examples of cytoplasmic organelles.

Answer 14

Mitochondria
Ribosomes
Endoplasmic reticulum
Golgi apparatus
Lysosomes.

Question 15

What is the function of a Mitochondria?

Answer 15

Produces energy for the cell through cellular respiration.

Question 16

What is the function of a Ribosome?

Answer 16

This structure found inside cells is involved linking amino acids to make proteins.

Question 17

What is the function of an Endoplasmic Reticulum?

Answer 17

Proteins and other molecules move through the endoplasmic reticulum.

Question 18

There are two types of Endoplasmic Reticulum. What are they?

Answer 18

Rough Endoplasmic Reticulum
Smooth Endoplasmic Reticulum

Question 19

What is the function of a Rough Endoplasmic Reticulum?

Answer 19

The rough endoplasmic reticulum has many ribosomes on its outer surface and makes proteins the cell needs.

Question 20

What is the function of a Smooth Endoplasmic Reticulum?

Answer 20

The smooth endoplasmic reticulum makes other substances that the cell needs, such as lipids (fats) and carbohydrates (sugars).

Question 21

What is the function of a Golgi Apparatus?

Answer 21

The Golgi apparatus prepares proteins and lipid (fat) molecules for use in other places inside and outside the cell.

Question 22

What is the function of a Lysosome?

Answer 22

It has enzymes that can break down cellular components that need to be destroyed.