cell specialization

Question 1

ready yet

Answer 1

go!!

Question 2

What is the basic unit of life in plants and animals?

Answer 2

A cell

Cells are the building blocks of living matter.

Question 3

Name three examples of animal cells.

Answer 3

• Sperm cells
• Muscle cells
• Red blood cells
• White blood cells

Question 4

Name three examples of plant cells.

Answer 4

• Root hair cells
• Palisade cells
• Guard cells

Question 5

What are the two main types of cells?

Answer 5

Animal and plant cells

Question 6

What is the function of the cell wall?

Answer 6

Keeps the cell in a rigid shape and protects the cell from damage.

Question 7

What is the function of the cell membrane?

Answer 7

Controls what enters or leaves the cell and keeps its contents together.

Question 8

Where do all chemical reactions in the cell take place?

Answer 8

Cytoplasm

Question 9

What do chloroplasts store?

Answer 9

Chlorophyll needed for photosynthesis

Question 10

What is the role of the nucleus in a cell?

Answer 10

Controls activities of a cell and contains chromosomes.

Question 11

What does a vacuole store?

Answer 11

Dissolved substances such as cell sap, food, and waste material.

Question 12

What is the function of mitochondria?

Answer 12

Generates energy needed by the cells.

Question 13

What do ribosomes do?

Answer 13

Make proteins.

Question 14

True or False: Plant cells have a cell wall.

Answer 14

True

Question 15

True or False: Animal cells have chloroplasts.

Answer 15

False

Question 16

Fill in the blank: A cell that has developed certain features to help it carry out a specific function is called a _______.

Answer 16

specialized cell

Question 17

What is the function of red blood cells?

Answer 17

Transports oxygen around the body.

Question 18

How does the structure of a nerve cell relate to its function?

Answer 18

It is thin and long to carry signals quickly over long distances.

Question 19

What do root hair cells do?

Answer 19

Take up water and mineral salts from the soil.

Question 20

What is the structure of xylem cells?

Answer 20

Made of long cells joined end to end with thickened walls.

Question 21

What is the purpose of palisade cells?

Answer 21

Packed with chloroplasts for sunlight absorption.

Question 22

What happens to a plant cell in a dilute solution?

Answer 22

Water passes into the vacuole, and the cell becomes turgid.

Question 23

What is plasmolysis?

Answer 23

When plant cells lose water in a higher concentration solution.

Question 24

What are the two principal methods of obtaining food?

Answer 24

• Autotrophic
• Heterotrophic

Question 25

What do autotrophic organisms do?

Answer 25

Make their own food through photosynthesis.

Question 26

What is photosynthesis?

Answer 26

The process by which green plants make their own food.

Question 27

What are the main products of photosynthesis?

Answer 27

* Oxygen * Glucose

Question 28

What is the function of stomata?

Answer 28

Allow for gaseous exchange and minimize water loss.

Question 29

What is the role of the cuticle in leaves?

Answer 29

Reduces water loss by transpiration.

Question 30

What is the word equation for photosynthesis?

Answer 30

Carbon dioxide + Water → Glucose + Oxygen

Question 31

What does a blue-black color indicate in the starch test?

Answer 31

Presence of starch.

Question 32

What is the effect of sunlight on photosynthesis?

Answer 32

Sunlight is necessary for photosynthesis.

Question 33

What happens to red blood cells in concentrated salt solutions?

Answer 33

They shrink.

Question 34

What indicates that oxygen is produced during photosynthesis?

Answer 34

Gas relights a glowing splint.

Question 35

What indicates that photosynthesis took place when testing a leaf for starch?

Answer 35

A blue-black colour indicates photosynthesis took place. ## Footnote No colour change means photosynthesis did not take place.

Question 36

What is the purpose of destarching identical plants for 24 hours before an experiment?

Answer 36

To ensure that any starch detected is a result of photosynthesis during the experiment.

Question 37

What was the conclusion regarding the necessity of sunlight for photosynthesis?

Answer 37

Sunlight is necessary for photosynthesis.

Question 38

What type of leaf is used to investigate the necessity of chlorophyll for photosynthesis?

Answer 38

A variegated leaf.

Question 39

What was observed when testing the green areas of the variegated leaf for starch?

Answer 39

Areas with chlorophyll turned blue-black.

Question 40

What was the conclusion regarding the necessity of chlorophyll for photosynthesis?

Answer 40

Chlorophyll is necessary for photosynthesis.

Question 41

What materials were used to cover the two potted plants in the experiment investigating carbon dioxide?

Answer 41

One was covered with soda lime and the other with sodium hydrogen carbonate.

Question 42

What does soda lime do in the carbon dioxide experiment?

Answer 42

Soda lime absorbs or removes carbon dioxide.

Question 43

What was the conclusion regarding the necessity of carbon dioxide for photosynthesis?

Answer 43

Carbon dioxide is necessary for photosynthesis.

Question 44

What are mineral ions required for in plants?

Answer 44

To manufacture other important substances needed for growth.

Question 45

How are mineral ions absorbed by plants?

Answer 45

Through active transport.

Question 46

What role does nitrogen play in plants?

Answer 46

Nitrogen is used to make plant protein.

Question 47

What are the effects of nitrogen shortage in plants?

Answer 47

Leads to stunted growth and pale yellow leaves.

Question 48

What is the role of magnesium in plants?

Answer 48

It is used in the manufacturing of chlorophyll.

Question 49

What are the effects of magnesium deficiency in plants?

Answer 49

Results in yellowing of leaves and weak stems.