Cell Structure Test
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Biology exam
- 1.All cells contain which of the following:
- A.
Endoplasmic reticulum
- B.
Plasma membrane
- C.
Nucleus
- D.
Mitochondria
- 2.The control center or brain of the cell is the
- A.
Nucleus
- B.
Mitochondria
- C.
Cell membrane
- D.
Endoplasmic reticulum
- 3.
- A.
Cell wall
- B.
Nucleus
- C.
Choloroplast
- D.
Centrioles
- 4.Rough ER has attached to it.
- A.
Nucleoulus
- B.
Golgi apparatus
- C.
Ribosomes
- D.
Chromosomes
- 5.
- A.
Plasma membrane
- B.
Cell wall
- C.
Nuclear envelope
- D.
Cytoplasm
- 6.The main function of the cell wall is to
- A.
Support and protect the cell
- B.
Store DNA
- C.
Help the cell move
- D.
Direct the activities of the cell
- 7.Which of the following is the function of the cytoskeleton?
- A.
Helps a cell keep its shape
- B.
Contains DNA
- C.
Surrounds the cell
- D.
Helps make proteins
- 8.Prokaryotes lack
- A.
DNA or genetir material
- B.
A cell membrane
- C.
A nucleus
- D.
Cytoplasm
- 9.
- A.
Smooth ER
- B.
Chloroplast
- C.
Mitochondria
- D.
Ribosome
- 10.Diffusion is the movement of particles from
- A.
An area of equilibrium to an area of high concentration
- B.
An area of high concentration to an ara of low concentration
- C.
An ara of low concentration to an area of high concentraion
- D.
All of the above
- 11.A eukaryotic cell contains
- A.
Only ribosomes
- B.
Membrane bound organelles
- C.
DNA floating in cytoplasm
- D.
Just cytoplasm
- 12.
- A.
Facilitated diffusion
- B.
Active transport
- C.
Osmosis
- D.
Exocytosis
- 13.Whichi organelle is the "packing center" for the cell?
- A.
Endoplasmic reticulum
- B.
Nucleus
- C.
Lysosome
- D.
Golgi apparatus
- 14.Which of the following is a saclike structure that stores water?
- A.
Golgi apparatus
- B.
Nucleus
- C.
Vacuole
- D.
Endoplasmic reticulum
- 15.Which of the following is the "powerhouse" of the cell that breaks down food into energy that the cell needs?
- A.
Mitochondria
- B.
Vacuole
- C.
Endoplasmic reticulum
- D.
Chloroplast
- 16.Who discovered "cells" and named them?
- A.
Anton van leewenhoek
- B.
Robert hooke
- C.
Lynn margulis
- D.
Rudolph
- 17.
- A.
Genetic material
- B.
Cell membrane
- C.
Vacuoles
- D.
Cytoplasm
- 18.Which of the following is the site for protein synthesis?
- A.
Cell membrane
- B.
Nucleus
- C.
Ribosomes
- D.
Lysosomes
- 19.
- A.
All living things are made of cells
- B.
Cells come from existing cells
- C.
Cells are the basic units of structure and function in all living things
- D.
All cells contain the same organelles
- 20.Who proposed that some cell organelles were once a type of bacteria that were free-living?
- A.
Schwann
- B.
Leewenhoek
- C.
Schleiden
- D.
Margulis
- 21.What is the small dark structure in the nucleus that produces ribosomes?
- A.
Rough ER
- B.
Nucleolus
- C.
Smooth ER
- D.
Chromatin
- 22.This is the jelly-like substance found in all cells:
- A.
Centrioles
- B.
Cytoskeleton
- C.
Chromosomes
- D.
Cytoplasm
- 23.These are the folds found inside the mitochondria that give more surface area for energy-releasing processes to take place:
- A.
Chromosomes
- B.
Cilia
- C.
Cristae
- D.
Cytoskeleton
- 24.This is a sac-like structure that contains digestive enzymes. it may digest waste materials or even dead cells.
- A.
ER
- B.
Lysosome
- C.
Vacuole
- D.
Vesicle
- 25.This is a series of sac-like tunnels that have ribosomes attached. the main function of this or organelle is to make and process proteins.
- A.
Nucleus
- B.
Rough ER
- C.
Smooth ER
- D.
Golgi apparatus
- 26.This is a series of sac-like tunnels without ribosomes. the main function of this organelles is to make and process lipids.
- A.
Smooth ER
- B.
Nucleus
- C.
Rough ER
- D.
Golgi apparatus
- 27.This type of diffusion requires the help of protein channels. it allowas for diffusion of large molecules like glucose through the plasma membrane.
- A.
Osmosis
- B.
Diffusion
- C.
Active transport
- D.
Facilitated diffusion
- 28.This is considered to be the opposite of diffusion because it moves molecules from an area of low concentration to high concentration. the cell must use energy to make this happen.
- A.
Diffusion
- B.
Osmosis
- C.
Active transport
- D.
Facilitated diffusion
- 29.
- A.
Osmosis
- B.
Endocytosis
- C.
Exocytosis
- D.
Facilitated diffusion
- 30.This is an active transport process where a vesicle inside the cell fuses with the plasma membrane to release contents to the outside of the cell:
- A.
Exocytoses
- B.
Pinocytosis
- C.
Phagocytoses
- D.
Endocytoses
- 31.The smallest unit of structure and function that maintains all the charateristics of life:
- A.
Nucleus
- B.
Tissue
- C.
Organism
- D.
Cells
- 32.These organic compounds are found floating around in a sea of phospholipids. they sometimes for channels or pumps for moving substances in and out of the cell:
- A.
Carbohydrates
- B.
Proteins
- C.
Nucleic acids
- D.
Lipids
- 33.Which of the following term is not similar to the other three:
- A.
Endocytoses
- B.
Phagocytosis
- C.
Exocytosis
- D.
Pinocytosis
- 34.
- A.
Phospholipieds in single layer with heads facing outside the cell
- B.
Phospholipids in double layer with heads of both layers meeting in middle
- C.
Phospholipids in single layer with heads facing inside the cell
- D.
Phospholipids in double layer with tails facing each other and heads on both the inside and outside of the cell
- 35.Which of the following is not supporting evidence of the endosymbiont theory?
- A.
Mitochondria and chloroplasts have their own DNA
- B.
Mitochondria and chloroplasts are only found in eukaryotic cells
- C.
Mitochondria and chloroplasts may reproduce
- D.
Mitochondria and chloroplasts are similar in size to prokaryotic cells
- 36.
- A.
Proteins float among the phospholipids
- B.
Carbohydrate chains may extend off of the plasma membrane
- C.
Cholesterol damages the plasma membrane
- D.
Phopholipids may move around
- 37.Which of the following describes a cell that has an equal amount of solute as its environment?
- A.
Hypotonic
- B.
Hypertonic
- C.
Isotonic
- D.
Osmotic
- 38.Which of the following is not found in all cells?
- A.
DNA
- B.
Plasma membrane
- C.
Cytoplasm
- D.
Lysosome
- 39.Which of the following is the site of photosynthesis?
- A.
Smooth ER
- B.
Chloroplast
- C.
Mitochondria
- D.
Cytoplasm
- 40.Which of the following scientists discovered that all animals have cells?
- A.
Leewenhoek
- B.
Virchow
- C.
Schwann
- D.
Schleiden
- 41.Which of the following is instrumental in helping a cell maintain homeostasis?
- A.
Cytoskeleton
- B.
Cell wall
- C.
Nucleus
- D.
Plasma membrane
- 42.Which of th efollowing contains instructoins for making a protein?
- A.
Golgi apparatus
- B.
Rough ER
- C.
Nucleus
- D.
Ribosome
- 43.Which of the following is located on the very most outside of a plant cell?
- A.
Centrioles
- B.
Cell wall
- C.
Plasma membrane
- D.
Vacuole
- 44.
- A.
Large central vacuole
- B.
Cell wall
- C.
Chloroplast
- D.
Chlorophyll
- 45.
- A.
Chloroplasts
- B.
Nucleus
- C.
Cytoplasm
- D.
DNA strands
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