cells ig- Flashcards
cambridge learners book 7 science chapter 1 - cells (27 cards)
What is the basic unit of life?
The cell.
True or False: All living organisms are made up of cells.
True.
Fill in the blank: Cells are surrounded by a _______.
cell membrane.
What are the two main types of cells?
Prokaryotic and eukaryotic cells.
Which type of cell lacks a nucleus?
Prokaryotic cell.
What is the function of the nucleus in a cell?
It controls the cell’s activities and contains genetic material.
Multiple Choice: Which of the following is a function of the cell membrane? A) Energy production B) Protection C) Protein synthesis
B) Protection.
Name one organelle found in eukaryotic cells.
Mitochondria.
What is the role of mitochondria in a cell?
They produce energy through respiration.
True or False: Plant cells have chloroplasts.
True.
Fill in the blank: The jelly-like substance inside a cell is called _______.
cytoplasm.
What structure provides support and shape to plant cells?
Cell wall.
Multiple Choice: Which of the following is NOT found in animal cells? A) Cell wall B) Lysosome C) Ribosome
A) Cell wall.
What is the function of ribosomes?
They are responsible for protein synthesis.
True or False: All cells have DNA.
True.
What is the primary component of the cell membrane?
Phospholipids.
Fill in the blank: The _____ is responsible for packaging proteins.
Golgi apparatus.
What are lysosomes often referred to as?
The ‘digestive system’ of the cell.
Multiple Choice: Which organelle is known as the powerhouse of the cell? A) Nucleus B) Mitochondria C) Endoplasmic reticulum
B) Mitochondria.
What is the main difference between prokaryotic and eukaryotic cells?
Prokaryotic cells do not have a nucleus; eukaryotic cells do.
True or False: The endoplasmic reticulum is involved in lipid and protein synthesis.
True.
Fill in the blank: The _____ helps in the movement of materials within the cell.
cytoskeleton.
What is the function of chloroplasts?
They conduct photosynthesis in plant cells.
Multiple Choice: Which organelle is involved in detoxifying harmful substances? A) Lysosome B) Peroxisome C) Ribosome
B) Peroxisome.