Plant Cells And Tissues

Question 1

Vacuoles

Answer 1

Largest organelle in a mature plant cell, taking up 90% of cell volume ( purple color in water lily)

Question 2

Anthocyanins

Answer 2

Pigment and antioxidants in plants

Question 3

Plant cell consists of what

Answer 3

Cell wall and protoplast

Question 4

Protoplast (plasmalemma) is pressed tight against what due to internal TURGOR PRESSURE

Answer 4

cell wall

Question 5

Plastids

Answer 5

Double membrane structure and semi-autonomous

Question 6

3 types of plastids

Answer 6

Chloroplast:contain chlorophylls and carotenoids

Chromoplasta: contain only carotenoids, appearing yellow, orange, or red, no internal membrane system

Leucoplasts: lack pigments appearing colorless, for synthesis of starch ( amyloplasts, lipids , and proteins)

Question 7

Function of pectin

Answer 7

In matrix, flexibility and “glue”

Question 8

Function of lignin

Answer 8

For strength (as in wood)

Question 9

Function for cutin

Answer 9

Repelling water from surface

Question 10

Function of suberin

Answer 10

For “corky” protection from water loss

Question 11

Woody plants have a lignified what

Answer 11

Secondary cell walls

Question 12

Parenchyma tissues & cells

Answer 12

Most common, for new growth and wound healing, thin walled, able to divide,

Question 13

Sclerenchyma tissues & cells

Answer 13

For strength and support, dead at maturity, lignified seconda walls, slender fibers, short

Question 14

Collenchyma tissues and cells

Answer 14

Found in strands and cylinders in stems and petioles, for support and flexibility, elongated, corners thickened with pectin

Question 15

If cell takes in lignin what happens ?

Answer 15

Death

Question 16

Phloem takes in what

Answer 16

Sugar water