Cells

Question 1

label this plant cell

Answer 1

Question 2

label this animal cell

Answer 2

Question 3

Nucleus

Answer 3

control centre of cell, contains genetic information

Question 4

Cytoplasm

Answer 4

liquid gel in which most of chemical reactions take place

Question 5

Cell membrane

Answer 5

selectively permeable, controls movement of material in and out of cell

Question 6

Cell Wall

Answer 6

support and protection of plant cell

Question 7

Mitochondrion

Answer 7

“Powerhouse” of cell (produces ATP by respiration)

Question 8

Ribosomes

Answer 8

production of proteins

Question 9

Chloroplasts

Answer 9

uses energy to make food by photosynthesis

Question 10

Permanent Vacuole

Answer 10

stores food, water and waste in plants

Question 11

Lysosome

Answer 11

special type of vacuole that breaks down old cell parts and large molecules

Question 12

ER (endoplasmic reticulum)

Answer 12

transport of chemicals and proteins within cells

Question 13

Golgi

Answer 13

modifies proteins to make them functional; and transports proteins within cells

Question 14

Cytoskeleton

Answer 14

support structure within cells (skeleton); made of proteins

Question 15

Organ

Answer 15

collection of tissues that perform a specific function within an organism

e.g. lungs

Question 16

Organism

Answer 16

a living being

e.g. a human

Question 17

Organelle

Answer 17

a functional structure within a cell

e.g. mitochondron

Question 18

Organ System

Answer 18

a collection of organs that peform a specific function within an organism

e.g. the body

Question 19

Tissue

Answer 19

a collection of connected cells that peforms a similar function within an organism

e.g. skin

Question 20

Cell

Answer 20

the structural unit of an organism may exist as independant life

e.g. blood cell

Question 21

List these in order of small to large: organism;organ system;tissue;organelle;cell;organ

Answer 21

organelle, cell, tissue, organ, organ system, organism

Question 22

How do you carry out a cheek cell experiment

Answer 22

You will need cotton buds, a clean microscope and cover slips, dilute methylene blue solution and a slide

Gently scrape the inside of your cheek with a sterile cotton bud and then smear the scrapings onto the middle of a slide. Pour a drop of dilute methylene blue solution on top of the smear. Then cover with a slip (gently press cover slip to spread out cells) and observe under the microscope.

Question 23

What does nutrition do?

Answer 23

supplies energy

Question 24

What does respiration do?

Answer 24

releases energy in cells

Question 25

Reproductive system

Answer 25

produces offspring

Question 26

What does Growth and Development do?

Answer 26

increases size into adulthood

Question 27

State two ways in which a typical plant cell differs from a typical animal cell

Answer 27

plant cells have a cell wall but animal cells don't animal cells don't have chloroplasts but plants cells do because they make their own food

Question 28

State two ways in which a bacterium differs from a virus

Answer 28

ribosomes are present in a bacterium but absent from a virus DNA in bacteria floats freely in cytoplasm and has a cell wall and cell membrane but DNA in viruses are enclosed inside a coat of protein

Question 29

Which type of living organism has cellulose cell walls? plants, animals, fungi, bacteria, viruses

Answer 29

plants

Question 30

Which type of these living organisms are all parasitic and have a protein coat? plants, animals, fungi, bacteria, viruses

Answer 30

viruses

Question 31

Which type of these living organisms are microscopic and contain circular DNA? plants, animals, fungi, bacteria, viruses

Answer 31

bacteria

Question 32

Which type of these living organisms have structures caled hyphae (some)? plants, animals, fungi, bacteria, viruses

Answer 32

fungi

Question 33

Which of these types of living organisms have cells which have a nucleus but no cell wall? plants, animals, fungi, bacteria, viruses

Answer 33

animals

Question 34

what structure is always present in plant cells but never in animal cells?

Answer 34

cell wall

Question 35

what sturctures are where respiration takes place?

Answer 35

mitochondrion (singular) mitochondria (plural)

Question 36

name the large structure in plant cells that helps to keep a plant rigid

Answer 36

permanent vacuole

Question 37

what is the liquid part of the cell where chemical reactions take place?

Answer 37

cytoplasm

Question 38

name the small structures in all cells where proteins are made

Answer 38

ribosomes

Question 39

name the structure that controls what goes in and out of cells

Answer 39

cell membrane