Questions Chapter 2 The Plant Cell and the Cell Cycle

2) Which of the following is not a statement of the Cell Theory? A) All cells arise from preexisting cells. B) All cells contain the hereditary material, DNA. C) All organisms are made up of cells. D) The cell is the basic unit of life. E) All of the above are correct statements about the Cell Theory.

All of the above are correct statements about the Cell Theory.

13) If the proptoplast of plant cell A is hypertonic to the protoplast of adjacent plant cell B. Which way will water flow? A) From A to B B) From B to A C) Equally from B to A and A to B D) There will be no flow of water whatsoever E) None of the above are correct.

From A to B

6) Which of the following statements about lignin is not correct? A) Lignin is indigestible by all organisms. B) In trees, lignin is more abundant in softwood species than hardwood species. C) Lignin protects the plant from pathogens. D) Lignin is found in secondary cell walls. E) Lignin is not found in primary cell walls.

Lignin is not found in primary cell walls.

*18) ________ is(are) necessary for diffusion to take place. A) A cell membrane B) Membrane proteins C) Energy D) A concentration gradient E) More than one of the above are required.

More than one of the above are required.

23) Which of the following is correct? A) Chromosomes are always duplicated during prophase. B) All cells must go through interphase after telophase. C) Cytokinesis is the division of duplicated chromosomes. D) Mitosis is the same as cell division. E) The Cell Cycle typically includes interphase, mitosis, and cytokinesis.

The Cell Cycle typically includes interphase, mitosis, and cytokinesis.

12) Which of the following statements is correct? A) The plasma membrane is selectively permeable (differentially permeable). B) The movement of water across the membrane is called facilitated diffusion. C) Osmosis is a form of dialysis. D) Diffusion and dialysis are usually the same process. E) None of the above are correct.

The plasma membrane is selectively permeable

16) Of these three items - concentration gradient, energy, membrane proteins - which two are needed for active transport to take place? A) only a concentration gradient B) all three are needed for active transport to take place C) a concentration gradient and energy D) a concentration gradient and membrane proteins E) energy and membrane proteins

a concentration gradient and energy

3) The Cell Theory is categorized as which of the following? A) an educated guess B) a hypothesis that is in need of testing C) a speculative idea D) untested but quite probable E) an explanation accepted as a major principle of biology

an explanation accepted as a major principle of biology

24) In which phase of mitosis do chromatids separate? A) metaphase B) prophase C) anaphase D) telophase E) interphase

anaphase

26) The phragmoplast eventually becomes the ________. A) nucleus B) cell wall C) plasma membrane D) middle lamella E) None of the above are correct.

cell wall

19) Which of the following pigments is most abundant in chloroplasts? A) carotene B) xanthophyll C) melanin D) chlorophyll E) tannins

chlorophyll

1) The biological term, "cell" came about through the study of ________ cells. A) tomato B) wood C) bone D) cork E) blood

cork

25) Phragmoplasts are most closely associated with which of the following? A) prophase B) metaphase C) anaphase D) telophase E) cytokinesis

cytokinesis

9) If you could travel from the inside of one plant cell into an adjacent plant cell, in what order would you find the following plant cell structures listed below? A) cytoplasm, plasma membrane, cell wall, middle lamella B) plasma membrane, cytoplasm, middle lamella, cell wall C) cytoplasm, plasma membrane, middle lamella, cell wall D) cytoplasm, middle lamella, plasma membrane, cell wall E) None of the above are correct.

cytoplasm, plasma membrane, middle lamella, cell wall

10) Microtubules and microfilaments comprise the structure of which of the following? A) cell wall B) plasmodesmata C) plasma membrane D) middle lamella E) cytoskeleton

cytoskeleton

5) Which of the following is found only in a plant cell? A) Nucleus B) Mitochondria C) Endoplasmic reticulum D) Chloroplasts E) Ribosomes

Chloroplasts

20) Which of the following statements is correct? A) Chloroplasts, leucoplasts, and chromoplasts are collectively called plastids. B) Amyloplasts are filled with plant oils. C) Mitochondria provides a location for photosynthesis to take place. D) Stroma holds adjacent plant cells together. E) Neither chloroplasts nor mitochondria are viewed as endosymbionts.

Chloroplasts, leucoplasts, and chromoplasts are collectively called plastids.

21) Plant pigments are specifically located within which of the following? A) thylakoid membranes. B) stroma C) plasma membranes D) nuclei E) golgi apparatus

thylakoid membranes

17) In drought conditions when soils are dry for long periods of time, plants cells become ________. A) hypertonic B) plasmolyzed C) turgid D) osmotic E) hydrated

plasmolyzed

14) When a plant cell is placed in a hypotonic solution, the cell becomes ________. A) hypertonic B) plasmolyzed C) turgid D) osmotic E) flaccid

hypertonic

4) The primary cell wall of a plant ________. A) consists of cellulose and lignin B) forms inside of the secondary cell wall C) consists primarily of cellulose D) gives wood its characteristic flexibility E) is described by more than one of these characteristics

is described by more than one of these characteristics

22) Ribosomes are the sites of the synthesis of ________. A) proteins B) lipids C) carbohydrates D) nucleic acids E) fats and oils

nucleic acids

15) The free movement of water across a membrane is called ________. A) active transport B) simple diffusion C) plasmolysis D) osmosis E) dialysis

osmosis

8) Which of the following serves as the "cement" that glues plant cells together? A) cytosol B) lignin C) cellulose D) the cytoskeleton E) pectin

pectin

11) A plant plasma membrane is made up of ________ and ________. A) cellulose; lignin B) phospholipids; carbohydrates C) phospholipids; proteins D) cellulose; cholesterol E) phospholipids; cholesterol

phospholipids; proteins

7) Movement of materials from one plant cell to another is accomplished through which of the following? A) the cytosol B) the middle lamella C) microtubules D) plasmodesmata E) the cytoskeleton

plasmodesmata