Question 1

Ribosomes are composed of

Accepted Answer

A)  DNA and RNA. 
B)  DNA and protein. 
C)  only protein. 
D)  RNA and protein. 
E)  only DNA. 
A)  DNA and RNA. 
B)  DNA and protein. 
C)  only protein. 
D)  RNA and protein. 
E)  only DNA.

Question 2

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then

Accepted Answer

A)  vesicles must travel from the Golgi to the cell surface. 
B)  vesicles must travel from the rough ER and smooth ER to the Golgi apparatus. 
C)  the Golgi apparatus must be part of the endomembrane system. 
D)  the Golgi apparatus must consist of 3 to 20 slightly curved sacs. 
E)  the Golgi apparatus would contain proteins. 
A)  vesicles must travel from the Golgi to the cell surface. 
B)  vesicles must travel from the rough ER and smooth ER to the Golgi apparatus. 
C)  the Golgi apparatus must be part of the endomembrane system. 
D)  the Golgi apparatus must consist of 3 to 20 slightly curved sacs. 
E)  the Golgi apparatus would contain proteins.

Question 3

The primary plant cell wall and the bacterial cell wall are both composed of peptidoglycan.

Accepted Answer

A) True 
 B)False

Question 4

Explain why cells are considered the basic unit of life.

Accepted Answer

Answers will vary. All of the chemistry

Question 5

Centrioles

Accepted Answer

A)  consist of a 9 + 2 pattern. 
B)  are short cylinders of microtubules surrounding a hollow center. 
C)  carry on cellular respiration. 
D)  are found in plant cells. 
E)  are composed of actin. 
A)  consist of a 9 + 2 pattern. 
B)  are short cylinders of microtubules surrounding a hollow center. 
C)  carry on cellular respiration. 
D)  are found in plant cells. 
E)  are composed of actin.

Question 6

Which of the following is true concerning the cell theory?

Accepted Answer

A)  Matthias Schleiden stated that animals are composed of cells. 
B)  Anton van Leeuwenhoek is recognized for making some of the earliest microscopes. 
C)  Hooke researched animal tissues and discovered that they were all made of cells. 
D)  Theodor Schwann came to the conclusion that cells come from preexisting cells. 
E)  No one knows who first used the term "cells." 
A)  Matthias Schleiden stated that animals are composed of cells. 
B)  Anton van Leeuwenhoek is recognized for making some of the earliest microscopes. 
C)  Hooke researched animal tissues and discovered that they were all made of cells. 
D)  Theodor Schwann came to the conclusion that cells come from preexisting cells. 
E)  No one knows who first used the term "cells."

Question 7

Within eukaryotic cells, which organelle is surrounded by a double membrane and carries the coding that determines protein synthesis?

Accepted Answer

A)  smooth endoplasmic reticulum 
B)  lysosome 
C)  nucleolus 
D)  nucleus 
E)  rough endoplasmic reticulum 
A)  smooth endoplasmic reticulum 
B)  lysosome 
C)  nucleolus 
D)  nucleus 
E)  rough endoplasmic reticulum

Question 8

According to the endosymbiotic theory, early eukaryotic cells became the mitochondria and chloroplasts found in prokaryotic cells.

Accepted Answer

A) True 
 B)False

Question 9

Since all organisms carry on cellular respiration, all living cells must contain mitochondria.

Accepted Answer

A) True 
 B)False

Question 10

If an active cell produces an important protein for secretion, what is the correct sequence of organelles that are involved in the production of the protein?

Accepted Answer

A)  endoplasmic reticulum → ribosomes → Golgi apparatus 
B)  ribosomes → endoplasmic reticulum → Golgi apparatus 
C)  endoplasmic reticulum → Golgi apparatus → ribosomes 
D)  Golgi apparatus → endoplasmic reticulum → ribosomes 
E)  ribosomes → Golgi apparatus → endoplasmic reticulum 
A)  endoplasmic reticulum → ribosomes → Golgi apparatus 
B)  ribosomes → endoplasmic reticulum → Golgi apparatus 
C)  endoplasmic reticulum → Golgi apparatus → ribosomes 
D)  Golgi apparatus → endoplasmic reticulum → ribosomes 
E)  ribosomes → Golgi apparatus → endoplasmic reticulum

Question 11

The motor molecules associated with actin filaments in muscle cells are called

Accepted Answer

A)  centrosomes. 
B)  centrioles. 
C)  dynein. 
D)  myosin. 
E)  kinesin. 
A)  centrosomes. 
B)  centrioles. 
C)  dynein. 
D)  myosin. 
E)  kinesin.

Question 12

Which organelle will take in carbon dioxide and give off oxygen and water?

Accepted Answer

A)  lysosome 
B)  Golgi apparatus 
C)  mitochondrion 
D)  chloroplast 
E)  endoplasmic reticulum 
A)  lysosome 
B)  Golgi apparatus 
C)  mitochondrion 
D)  chloroplast 
E)  endoplasmic reticulum

Question 13

During photosynthesis, solar energy is converted to chemical energy by the chloroplasts. The process is represented by

Accepted Answer

A)  carbohydrate + oxygen → carbon dioxide + water + energy. 
B)  carbohydrate + carbon dioxide → oxygen + water + energy. 
C)  solar energy + oxygen + water → carbohydrate + oxygen. 
D)  solar energy + carbon dioxide + water → carbohydrate + oxygen. 
E)  solar energy → carbohydrate + oxygen. 
A)  carbohydrate + oxygen → carbon dioxide + water + energy. 
B)  carbohydrate + carbon dioxide → oxygen + water + energy. 
C)  solar energy + oxygen + water → carbohydrate + oxygen. 
D)  solar energy + carbon dioxide + water → carbohydrate + oxygen. 
E)  solar energy → carbohydrate + oxygen.

Question 14

According to the cell theory

Accepted Answer

A)  all organisms are composed of tissues. 
B)  the smallest unit of life is a nucleus. 
C)  animals but not plants are composed of cells. 
D)  a multicellular organism is composed of many cells. 
E)  new cells arise only from preexisting cells. 
A)  all organisms are composed of tissues. 
B)  the smallest unit of life is a nucleus. 
C)  animals but not plants are composed of cells. 
D)  a multicellular organism is composed of many cells. 
E)  new cells arise only from preexisting cells.

Question 15

Both plant and animal cells have mitochondria because they both

Accepted Answer

A)  carry on photosynthesis. 
B)  have a large central vacuole. 
C)  have endoplasmic reticulum. 
D)  need ATP for energy. 
E)  have lysosomal hydrolytic enzymes. 
A)  carry on photosynthesis. 
B)  have a large central vacuole. 
C)  have endoplasmic reticulum. 
D)  need ATP for energy. 
E)  have lysosomal hydrolytic enzymes.

Question 16

Which organelles have a 9 + 2 pattern of microtubules?

Accepted Answer

A)  cilia and centrioles 
B)  cilia and flagella 
C)  centrioles and flagella 
D)  chloroplasts and mitochondria 
E)  mitochondria and centrioles 
A)  cilia and centrioles 
B)  cilia and flagella 
C)  centrioles and flagella 
D)  chloroplasts and mitochondria 
E)  mitochondria and centrioles

Question 17

Surface-area-to-volume ratios indicate

Accepted Answer

A)  cells must exceed a certain minimum size. 
B)  as cells get larger, their surface area actually decreases. 
C)  that the largest cells have a less proportionate need for food intake and waste removal. 
D)  a chicken egg is one cell which demonstrates the upper limit for metabolizing cell size. 
E)  as cells get larger, their surface area gets larger but at a slower rate than the volume increases. 
A)  cells must exceed a certain minimum size. 
B)  as cells get larger, their surface area actually decreases. 
C)  that the largest cells have a less proportionate need for food intake and waste removal. 
D)  a chicken egg is one cell which demonstrates the upper limit for metabolizing cell size. 
E)  as cells get larger, their surface area gets larger but at a slower rate than the volume increases.

Question 18

You are investigating a cell under the microscope and you realize the cell is missing ribosomes. Based on what you know about ribsomes, the cell would

Accepted Answer

A)  be unable to form a spindle apparatus. 
B)  be unable to synthesize proteins. 
C)  be unable to respire. 
D)  would hydrolyze too much fat. 
E)  form extra lysosomes. 
A)  be unable to form a spindle apparatus. 
B)  be unable to synthesize proteins. 
C)  be unable to respire. 
D)  would hydrolyze too much fat. 
E)  form extra lysosomes.

Question 19

Which of the following cell organelles is a good target for antibacterial drugs?

Accepted Answer

A)  plasma membrane 
B)  DNA 
C)  ribosomes 
D)  cytoplasm 
E)  endoplasmic reticulum 
A)  plasma membrane 
B)  DNA 
C)  ribosomes 
D)  cytoplasm 
E)  endoplasmic reticulum

Question 20

Which of the following would be considered evidence that chloroplasts are involved in photosynthesis?

Accepted Answer

A)  Isolated chloroplasts give off oxygen when exposed to sunlight. 
B)  Plants that are green contain chloroplasts. 
C)  Both plants and algae have chloroplasts. 
D)  Plants have both chloroplasts and mitochondria. 
E)  Chloroplasts contain thylakoids which are stacked in structures called grana. 
A)  Isolated chloroplasts give off oxygen when exposed to sunlight. 
B)  Plants that are green contain chloroplasts. 
C)  Both plants and algae have chloroplasts. 
D)  Plants have both chloroplasts and mitochondria. 
E)  Chloroplasts contain thylakoids which are stacked in structures called grana.

Exam 3: Cell Structure and Function

Ribosomes are composed of

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then

The primary plant cell wall and the bacterial cell wall are both composed of peptidoglycan.

Explain why cells are considered the basic unit of life.

Centrioles

Which of the following is true concerning the cell theory?

Within eukaryotic cells, which organelle is surrounded by a double membrane and carries the coding that determines protein synthesis?

According to the endosymbiotic theory, early eukaryotic cells became the mitochondria and chloroplasts found in prokaryotic cells.

Since all organisms carry on cellular respiration, all living cells must contain mitochondria.

If an active cell produces an important protein for secretion, what is the correct sequence of organelles that are involved in the production of the protein?

The motor molecules associated with actin filaments in muscle cells are called

Which organelle will take in carbon dioxide and give off oxygen and water?

During photosynthesis, solar energy is converted to chemical energy by the chloroplasts. The process is represented by

According to the cell theory

Both plant and animal cells have mitochondria because they both

Which organelles have a 9 + 2 pattern of microtubules?

Surface-area-to-volume ratios indicate

You are investigating a cell under the microscope and you realize the cell is missing ribosomes. Based on what you know about ribsomes, the cell would

Which of the following cell organelles is a good target for antibacterial drugs?

Which of the following would be considered evidence that chloroplasts are involved in photosynthesis?

The Study of Life

The Molecules of Cells

Membrane Structure and Function

Cell Division

Metabolism: Energy and Enzymes

Cellular Respiration

Photosynthesis

Plant Organization and Function

Plant Reproduction and Responses

Human Organization

Cardiovascular System

Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System and Excretion

Nervous System

Senses

Musculoskeletal System

Endocrine System

Reproductive System

Development and Aging

Patterns of Gene Inheritance

Chromosomal Basis of Inheritance

Dna Structure and Gene Expression

Biotechnology and Genomics

Evolution of Life

Microbiology

Protists and Fungi

Plants

Animals: the Invertebrates

Animals: Chordates and Vertebrates

Behavioral Ecology

Population and Community Ecology

Nature of Ecosystems

Major Ecosystems of the Biosphere

Conservation Biology

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