Question 1

Which leaf cells often resemble jigsaw puzzle pieces when viewed from the top?

Accepted Answer

A)  epidermal cells 
B)  palisade mesophyll cells 
C)  spongy mesophyll cells 
D)  vein phloem cells 
E)  none of these answers are correct. 
A)  epidermal cells 
B)  palisade mesophyll cells 
C)  spongy mesophyll cells 
D)  vein phloem cells 
E)  none of these answers are correct.

Question 2

Which of the following leaf pigments is/are red if the cell sap is slightly acid and blue if the cell sap is slightly alkaline?

Accepted Answer

A)  carotenes 
B)  xanthophylls 
C)  chlorophyll a 
D)  anthocyanins 
E)  chlorophyll b 
A)  carotenes 
B)  xanthophylls 
C)  chlorophyll a 
D)  anthocyanins 
E)  chlorophyll b

Question 3

A cluster of leaflets attached to the end of the petiole would be characteristic of a

Accepted Answer

A)  pinnately compound leaf. 
B)  palmately compound leaf. 
C)  twice pinnately compound leaf. 
D)  whorled leaf. 
E)  simple leaf. 
A)  pinnately compound leaf. 
B)  palmately compound leaf. 
C)  twice pinnately compound leaf. 
D)  whorled leaf. 
E)  simple leaf.

Question 4

The leaf pigments mostly responsible for gold to orange leaf colors in the fall are

Accepted Answer

A)  xanthophylls. 
B)  anthocyanins. 
C)  betacyanins. 
D)  carotenes. 
E)  chlorophylls. 
A)  xanthophylls. 
B)  anthocyanins. 
C)  betacyanins. 
D)  carotenes. 
E)  chlorophylls.

Question 5

Pinnately compound leaves have leaflets in pairs along a rachis.

Accepted Answer

A) True 
 B)False

Question 6

Few, if any, drugs are obtained from leaves.

Accepted Answer

A) True 
 B)False

Question 7

A __________ leaf has a single expanse of blade tissue.

Accepted Answer

A)  pinnately compound 
B)  palmately compound 
C)  simple 
D)  rachis 
E)  bipinnately compound 
A)  pinnately compound 
B)  palmately compound 
C)  simple 
D)  rachis 
E)  bipinnately compound

Question 8

Typical leaves function as _______________ in the plant.

Accepted Answer

A)  a heat source 
B)  solar panels 
C)  mineral absorption organs 
D)  storage organs 
E)  water absorption organs 
A)  a heat source 
B)  solar panels 
C)  mineral absorption organs 
D)  storage organs 
E)  water absorption organs

Question 9

Leaf venation patterns in _____________ leaves are usually netlike or reticulate.

Accepted Answer

A)  dicot 
B)  monocot 
C)  grass 
D)  very small 
E)  large leaves such as banana 
A)  dicot 
B)  monocot 
C)  grass 
D)  very small 
E)  large leaves such as banana

Question 10

Which of the following beverages is manufactured or brewed from leaves?

Accepted Answer

A)  tequila 
B)  absinthe 
C)  pulque 
D)  mate 
E)  all of these answers are correct. 
A)  tequila 
B)  absinthe 
C)  pulque 
D)  mate 
E)  all of these answers are correct.

Question 11

A leaf that lacks a petiole is termed

Accepted Answer

A)  clasping. 
B)  sheathing. 
C)  emergent. 
D)  dentate. 
E)  sessile. 
A)  clasping. 
B)  sheathing. 
C)  emergent. 
D)  dentate. 
E)  sessile.

Question 12

All leaves originate as primordia on the surface of the stem apical meristem.

Accepted Answer

A) True 
 B)False

Question 13

Most photosynthesis in a leaf takes place in the spongy mesophyll.

Accepted Answer

A) True 
 B)False

Question 14

Sugars produced in photosynthesis are "loaded" into the ______ of the leaf for transport throughout the plant.

Accepted Answer

A)  mesophyll 
B)  phloem 
C)  xylem 
D)  bundle fibers 
E)  cuticle 
A)  mesophyll 
B)  phloem 
C)  xylem 
D)  bundle fibers 
E)  cuticle

Question 15

In a leaf such as a sunflower, the average number of stomates on the lower surface is approximately ___________.

Accepted Answer

A)  2,000,000 
B)  18,000 
C)  5,000. 
D)  250. 
E)  25. 
A)  2,000,000 
B)  18,000 
C)  5,000. 
D)  250. 
E)  25.

Question 16

If you were looking for bundle sheath cells in a leaf, you would usually find them forming a layer next to the upper epidermis.

Accepted Answer

A) True 
 B)False

Question 17

The venation that forks repeatedly in leaves is termed

Accepted Answer

A)  pinnate. 
B)  palmate. 
C)  dichotomous. 
D)  bilateral. 
E)  parallel. 
A)  pinnate. 
B)  palmate. 
C)  dichotomous. 
D)  bilateral. 
E)  parallel.

Question 18

A leaf arrangement in which there are three or more leaves at a node is called

Accepted Answer

A)  alternate. 
B)  opposite. 
C)  palmate. 
D)  whorled. 
E)  pinnate. 
A)  alternate. 
B)  opposite. 
C)  palmate. 
D)  whorled. 
E)  pinnate.

Question 19

Anthocyanins are the principal pigments responsible for yellow and orange colors in fall leaves.

Accepted Answer

A) True 
 B)False

Question 20

A conspicuous organelle at the light microscope level in cells of the palisade mesophyll would be

Accepted Answer

A)  chloroplasts. 
B)  nucleoli. 
C)  mitochondria. 
D)  vacuoles. 
E)  ribosomes. 
A)  chloroplasts. 
B)  nucleoli. 
C)  mitochondria. 
D)  vacuoles. 
E)  ribosomes.

Exam 7: Leaves

Which leaf cells often resemble jigsaw puzzle pieces when viewed from the top?

Which of the following leaf pigments is/are red if the cell sap is slightly acid and blue if the cell sap is slightly alkaline?

A cluster of leaflets attached to the end of the petiole would be characteristic of a

The leaf pigments mostly responsible for gold to orange leaf colors in the fall are

Pinnately compound leaves have leaflets in pairs along a rachis.

Few, if any, drugs are obtained from leaves.

A __________ leaf has a single expanse of blade tissue.

Typical leaves function as _______________ in the plant.

Leaf venation patterns in _____________ leaves are usually netlike or reticulate.

Which of the following beverages is manufactured or brewed from leaves?

A leaf that lacks a petiole is termed

All leaves originate as primordia on the surface of the stem apical meristem.

Most photosynthesis in a leaf takes place in the spongy mesophyll.

Sugars produced in photosynthesis are "loaded" into the ______ of the leaf for transport throughout the plant.

In a leaf such as a sunflower, the average number of stomates on the lower surface is approximately ___________.

If you were looking for bundle sheath cells in a leaf, you would usually find them forming a layer next to the upper epidermis.

The venation that forks repeatedly in leaves is termed

A leaf arrangement in which there are three or more leaves at a node is called

Anthocyanins are the principal pigments responsible for yellow and orange colors in fall leaves.

A conspicuous organelle at the light microscope level in cells of the palisade mesophyll would be

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

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