BIOLOGY GRADE 7 - CELL
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. Plant cells have all of the following except
A. Cell wall
B. Nucleus
C. Choloroplast
D. Centrioles
4. Rough ER has
A. Nucleoulus
B. Golgi apparatus
C. Ribosomes
D. Chromosomes
attached to it.
5. The thin, flexible barrier around a cell is called the
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. Which organelle would not be found in animals
cells?
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. Diffusion of water is
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
BIOLOGY GRADE 7 - CELL
17. Which of the following is not found in all cells?
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. Which of the following is not part of the cell
theory?
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