Biology 2201 Midterm

Name:___________________________

Part A: Multiple Choice Questions

Transfer Answers to the answer sheet attached at the back.

1. Which supports the cell theory?

(A) abiogenesis

(B) biogenesis

(C) comparative DNA

(D) spontaneous generation

2. Which scientist supported biogenesis?

(A) Hooke

(B) Needham

(C) Redi

(D) Schwann

3. Which scientist is credited with the discovery of “cells”?

(A) Brown

(B) Hooke

(C) Leeuwenhoek

(D) Spallanzani

4. Which structure controls the amount of light that reaches the object being viewed?

(A) A

(B) B

(C) C

(D) D

5. If the field of view in the diagram below has a diameter of 200 µm, what is the

approximate size of the specimen shown?

(A) 100 µm

(B) 200 µm

(C) 400 µm

(D) 800 µm

6. Which type of microscope was used to obtain the image shown?

(A) compound light

(B) scanning electron

(C) simple light

(D) transmission electron

7. Which type of cell is shown?

Cell Type Organism

(A) eukaryotic animal

(B) eukaryotic plant

(C) prokaryotic animal

(D) prokaryotic plant

8. What is structure “X” in the diagram shown?

(A) cell membrane (B) golgi apparatus (C) lysosome (D) ribosome

9. Four representative plant cells are shown, each containing a nucleus. Which cell would

have the most difficulty maintaining homeostasis?

(A) A

(B) B

(C) C

(D) D

10. Which describes the movement of a substance in or out of a cell through a carrier

protein without the use of cellular energy?

(A) active transport (B) diffusion (C) facilitated diffusion (D) osmosis

11. Which type of transport is illustrated in the diagram shown?

General Transport Specific Transport

(A) Endocytosis Phagocytosis

(B) Endocytosis Pinocytosis

(C) Exocytosis Phagocytosis

(D) Exocytosis Pinocytosis

12. Which process requires the use of ATP?

(A) active transport (B) diffusion

(C) osmosis (D) passive transport

13. Which equation represents the process of photosynthesis?

(A) CO H O O6 2 + 6 2 + 6 2

(B) CO H O O TP6 2 + 6 2 + 6 2 + A

(C) H O O 6CO H O TPC6 12 6 + 6 2 2 + 6 2 + A

(D) H O O 6CO H OC6 12 6 + 6 2 2 + 6 2

14. Which cellular metabolic process occurs in the absence of oxygen?

(A) aerobic respiration (B) anaerobic respiration (C) diffusion (D) osmosis

15. A large piece of land is currently being cleared of trees to develop a golf course. How

will photosynthesis and cellular respiration be affected in the local ecosystem?

Photosynthesis Cellular Respiration

(A) decrease decrease

(B) decrease increase

(C) remain constant decrease

(D) remain constant increase

16. If two organisms are in the same class, which other category of the Linnean

classification system do they share?

(A) family (B) genus (C) order (D) phylum

17. Which two organisms are most closely related?

Organism

Taxon A B C D

Kingdom Animalia Animalia Animalia Animalia

Phylum Chordata Chordata Chordata Chordata

Class Mammalia Mammalia Mammalia Mammalia

Order Carnivora Diprotodontia Carnivora Diprotodontia

Family Canidae Macropodidae Canidae Macropodidae

Genus Canis Dendrolagus Canis Macropus

Species latrans ursinus rufus rufus

(A) A and B (B) A and C (C) B and D (D) C and D

18. Using the table shown, what is the correct binomial nomenclature for a horse?

Classification Name

Kingdom Animalia

Phylum Chordata

Class Mammalia

Order Perissodactyla

Family Equidae

Genus Equus

Species ferus

(A) Animalia ferus (B) Equus ferus (C) ferus Animalia (D) ferus Equus

19. Which Kingdom is mainly composed of multicellular organisms which are absorptive

heterotrophs?

(A) Animalia (B) Fungi (C) Plantae (D) Protista

20. Why is binomial nomenclature preferred over the use of common names?

(A) complexity (B) consistency (C) difficulty (D) simplicity

21. Why are viruses not classified into any Kingdom of living organisms?

(A) They are unable to reproduce by themselves. (B) They contain genetic material. (C) They do not adapt to their environment. (D) They have no water requirement.

22. How many Kingdoms are recognized in the current Linnean classification system?

(A) 4 (B) 5 (C) 6

(D) 7 23. Which is NOT an example of a modern technique used to identify an unknown species?

(A) DNA analysis (B) habitat analysis (C) protein comparison (D) radioactive dating

24. Which is a member of Kingdom Archaea?

(A) Bacteriophage (B) Methanogen (C) Protozoan (D) Yeast

25. Which plant relies on water for successful reproduction?

(A) Birch (B) Moss (C) Rose (D) Spruce

26. Which organism exhibits bilateral symmetry?

(A)

(B)

(C)

(D)

27. The following table describes the characteristics of four (4) unidentified invertebrates. Which organism should be most complex?

Organism Symmetry Digestion Body Cavity

(A) A radial two way, one opening none

(B) B bilateral two way, one opening none

(C) C radial one way, two opening present

(D) D bilateral one way, two opening present

28. Which class of organisms use gills, skin and lungs for respiration?

(A) Agnatha (B) Amphibia (C) Chondricthyes (D) Reptilia

29. Which correctly describes this organism?

Endoskeleton Circulatory System Reproduction

(A) cartilage only two chambered heart external fertilization and

external development

(B) cartilage only three chambered heart external fertilization and

internal development

(C) cartilage and bone

three chambered heart internal fertilization and

external development

(D) cartilage and bone four chambered heart internal fertilization and

internal development

30. A new organism has been found which has a four chambered heart, internal fertilization

and external development. What other characteristic should this organism display?

(A) air sacs (B) exoskeleton (C) gill slits (D) radial symmetry

31. Which phylum of animals is most successful?

(A) Annelida (B) Arthropoda (C) Cnidaria (D) Echinodermata

32. A viral host cell has a mutation that has altered its metabolism. Which stage of the virus

lifecycle will be affected?

(A) A (B) B (C) C (D) D

33. At which stage in the lifecycle of a fern does sexual reproduction occur?

(A) A (B) B (C) C (D) D

34. Which term describes the body’s ability to maintain a stable internal environment

despite changing external factors?

(A) digestion (B) homeostasis (C) immunity (D) respiration

Short Answer Questions

35 a) A macrophage has lost the ability to engulf and destroy foreign materials. Suggest

two (2) cellular structures that may have malfunctioned. Justify your choices. (2 marks)

35 b) Examine the diagram below.

(i) Explain how the plant cell will respond in this environment. (2 Points)

(ii) Explain how an animal cell will respond differently in this environment. (1 Point)

36 a) Create a dichotomous key to classify the four organisms shown. (2 Points)

b) Explain why an oak tree can grow to be much taller than a moss. (2 Points)

36 c) Why is the organism shown below so biologically successful? Justify your answer with

two (2) reasons. (2 Points)