Question

read the sentences below, filling in the blanks with items from this list. each item will be used once.

nucleus
unit
mitochondria
cytoskeleton
cytoplasm
organelles
smooth
golgi
enzymes
chloroplast
wall
membrane

the cell is often referred to as the basic ____ of life.

each cell contains specialized structures called ____ that perform specific functions.

the ____ is known as the cells control center and houses the dna.

the powerhouse of the cell, responsible for producing energy, is the ____.

proteins are synthesized in ribosomes, which are found in the ____ and the rough endoplasmic reticulum.

after proteins are made, they are sent to the ____ apparatus for modification and packaging.

the ____ captures sunlight in plant cells and turns it into usable energy through a process called photosynthesis.

for detoxification and lipid synthesis, cells rely on the ____ endoplasmic reticulum.

lysosomes contain ____ that help break down and digest unwanted cellular materials.

the cells structure and movement are supported by a network called the ____.

in eukaryotic cells, the cell ____ separates the cells internal environment from the external surroundings.

plant cells have an additional rigid layer called the cell ____ which provides added support and protection.

Explanation:

1. The cell is the basic unit of life.
2. Organelles are specialized cell - structures with specific functions.
3. The nucleus houses the cell's DNA and is the control center.
4. Mitochondria are the energy - producing powerhouses of the cell.
5. Ribosomes for protein synthesis are in the cytoplasm and rough endoplasmic reticulum.
6. The Golgi apparatus modifies and packages proteins.
7. Chloroplasts in plant cells perform photosynthesis.
8. The smooth endoplasmic reticulum is for detoxification and lipid synthesis.
9. Lysosomes contain enzymes for breaking down cellular waste.
10. The cytoskeleton supports cell structure and movement.
11. The cell membrane separates the cell's internal and external environments.
12. Plant cells have a cell wall for extra support and protection.

Answer:

1. unit
2. organelles
3. nucleus
4. mitochondria
5. cytoplasm
6. Golgi
7. chloroplast
8. smooth
9. enzymes
10. cytoskeleton
11. membrane
12. wall