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Biology

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Teresa Hamill

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โˆ™ 2021-10-08 18:35:03
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Cards in this guide (23)
What is the function of the nucleolus

The nucleolus functions to produce ribosomes.
It controls what goes on in the cell. It also does cellular reproduction.
ribosomes
to store immature chromosomes and as a control center of the cell.
It's where ribosomes are made.

it is often refered to as the brain of the cell as it controlls what goes on. it is also used for cellular reproduction,the nucleolus is that they disappear during cell reproduction. This is probably because the need for ribosomes disappears during cell reproduction

Who gave cells their name

Robert Hooke dicovered and named cells. He named them cells because they reminded him of the small rooms monks live in.

What do chloroplasts and mitochondria have that other organelles lack

their own DNA

When does independent assortment occur

Metaphase I

What is the primary function of the Golgi apparatus

It sorts and packages products of the ER.

What cellular structure is responsible for manufacturing ribosomes

# Nucleolus.

Mutations in DNA often occur during replication During which phase of the cell cycle do such mutations occur

Interphase

What is produced during the light dependent reactions and used during the light independent reactions of photosynthesis

ATP and NADPH

What is the difference between meiosis II and mitosis

very little difference

When DNA has replicated the copied sister chromatids remain attached to what structure

centromere

Photosynthesis requires an input of energy to occur Which kind of reaction does this describe

an endothermic reaction

Sometimes mutations in DNA can cause control of the cell cycle to fail What might happen if such a mutation occurred in a person's DNA

they might get cancer

Which process occurs when an organism obtains and releases energy

In general terms I should think that for plants this is photosynthesis, and for animals digestion

A+ -- Respiration

What is the function of ribosomes

The primary function of Ribosomes is to read and translate the cell's genetic code, then reproduce (replicate) the proteins that the code represents.

Without the ribosomes this coded message could not be read or replicated. Without this replication, the cells would simply age and die, and the organism would die with them.

Related Information:

They do this by translating messenger RNA (mRNA) into proteins. Messenger RNA is simply a copy of the DNA from the nucleus that is allowed to enter the cytoplasm and be used to make proteins.

Ribosomes are the sites of protein synthesis, where RNA is translated into protein. When cells need large numbers of proteins, they must first build numerous ribosomes. Because protein synthesis is so important to cells, there are large numbers of ribosomes in all cells, often numbering in the hundreds or thousands. For example, pancreatic cells and those of other glands have many ribosomes because they produce secretions that contain proteins.

In eukaryote cells, three of the four ribosomal RNA strands are synthesized in the nucleolus, a structure within the nucleus. The fourth ribosomal RNA strand is synthesized outside of the nucleolus and then transported into the nucleolus for ribosome assembly.

Ribosomal proteins enter the nucleolus and combine with the four waiting ribosomal RNA strands to create the large and small subunits each composed of two ribosomal structures. The two subunits unite outside the nucleus. Then the newly formed single unit begins to manufacture proteins.

Prokaryotic cells lack a nucleus or nucleolus so, in these cells, ribosomal synthesis takes place in the cytoplasm..

Ribosomes are bead like structures, usually found on the surface of the Endoplasmic Reticulum in eukaryotic cells, and are dispersed freely in some prokaryotic cells. Ribosomes are used in the synthesis of proteins and enzymes required by the cells for various purposes. Most of our cellular chemical reactions are enhanced (catalyzed) by enzymes, in order for the cells to function properly.

Ribosomes make proteins for use in the cell and for export.

a ribosome is a part of the cell in the animal

They make the amount of protein needed for the cell.
Which letter correctly identies metaphase

B

What theory did the works of Virchow Schwann and Schleiden help to form

cell theory

Do plant cells and animal cells have vacuoles

they both have vacuoles. plant cells have bigger vacuoles then animal cells

Which these are the characteristic of mitosis and not meiosis

A mitosis divides cells containing the same number of chromosomes.

What is one organelle found in a plant cell that is not found in an animal cell

plant cell that is not in an animal cell

Which term describe reactants when they are associated with enzymes

which term describes reactants when they associated with enzymes

Which of these is an example of potential energy

a rock sitting on top of the hill.

Which of these is a reactant in photosynthesis

like i said: water

During which stage of complete cellular respiration is most of the ATP produced

electron transport chain reactions

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