7th Grade Science Common Exam Review Question Preview (ID: 19494)


Part 4. TEACHERS: click here for quick copy question ID numbers.

Which statement best describes how endoplasmic reticulum and ribosomes work together?
a) endoplasmic reticulum produce ribosomes which then produce the pigment that makes plants green
b) endoplasmic reticulum controls what enters and leaves the cell, while ribosomes destroy foreign invaders
c) ribosomes produce proteins in the endoplasmic reticulum and then the proteins are transported throughout the cell
d) they work together to break down food and to fight off infectious diseases

This membrane bound space is used for storage, especially in plants
a) cytoplasm
b) vacuole
c) ribosome
d) cell membrane

Which organelles are found in plant cells but not in animal cells
a) cell membrane and centriole
b) chloroplast and cell wall
c) endoplasmic reticulum and golgi bodies
d) ribosomes and lysosomes

What is the role of lysosomes within a cell?
a) they control what enters and leaves the cell
b) they produce proteins
c) they use digestive enzymes to break down food waste and worn out cell parts
d) they fight off infectious diseases

Which is the term given to a group of similar cells that work together?
a) organelles
b) ribosomes
c) cellulose
d) tissues

How do the lungs function within the excretory system?
a) the lungs exchange oxygen and carbon monoxide
b) the lungs absorb carbon dioxide from the air
c) the lungs help to release carbon dioxide while absorbing nutrients
d) the lungs exchange oxygen and carbon dioxide and release waste products in cells

Which systems work together to deliver oxygen to the cells of the body?
a) muscular and circulatory
b) skeletal and digestive
c) respiratory and circulatory
d) digestive and respiratory

What is the primary purpose of the excretory system?
a) it removes wastes
b) it collects oxygen
c) it attacks diseases
d) it delivers nutrients

How do the respiratory and circulatory systems work together?
a) the respiratory system takes in carbon dioxide, while the circulatory system delivers carbon dioxide to the cells
b) The circulatory system takes in carbon dioxide while the respiratory system delivers carbon dioxide to the cells.
c) The respiratory system takes in oxygen, while the circulatory system delivers oxygen to the cells.
d) The circulatory system takes in oxygen, while the respiratory system delivers oxygen to the cells.

How does smoking cigarettes affect the body?
a) it causes damage to various cells
b) it improves the function of the lungs
c) it lowers carbon dioxide amounts
d) it reduces the chance of cancer

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