Peering At Plant Cells

Question 1

The nucleus of an atom is composed of

Answer 1

Positively charged protons and uncharged neutrons

Question 2

Which of the following statements about water molecules is false?

Answer 2

They are attracted to hydrophobic molecules

Question 3

Which macromule is the chief structural polymer in plants cells that animals can’t digest?

Answer 3

Cellulose

Question 4

Atp is an example of

Answer 4

Nucleotide

Question 5

The different isotopes of an element have

Answer 5

The same number of protons

Question 6

The association between na and ci in a salt crystal is called an

Answer 6

Ionic bond

Question 7

The smallest portion of an element that retains the properties of the element is the

Answer 7

Atom

Question 8

Compounds that consist of carbon hydrogen and ch20 are

Answer 8

Carbohydrates

Question 9

Phospholipids form a bilayer in water because

Answer 9

The phosphate end is hydrophilic and the lipid end is hydrophobic

Question 10

Which of the following statements about amino acids is not correct

Answer 10

They have identical r groups

Question 11

Peptide bonds are found in

Answer 11

Proteins

Question 12

Starch is a polymer of

Answer 12

Glucose

Question 13

Classes of proteins called function as organic catylasts for chemical reactions in cells

Answer 13

Enzymes

Question 14

Cytoplasmic connections between adjacent cells are called

Answer 14

Plasmodesmata

Question 15

In cells protein synthesis is done by

Answer 15

Ribosomes

Question 16

All plastoids can perform photosynthesis true or false

Answer 16

False

Question 17

The organelle duo that packages cellular materials like cell wall building blocks for secretion is the

Answer 17

Golgi apparutus and er

Question 18

The process of cellular respiration occurs in the

Answer 18

Mitochondria

Question 19

Which structure is composed of phosophilids and proteins and regulates the movement of solutes into and out of cells

Answer 19

Plasma membrane