Question

part 3i directions: base your answers to the questions on the information below and your knowledge of biology. 1. most of the reactions by which energy from carbohydrates is released for use by the cell take place in the (1) mitochondria (2) ribosomes (3) nuclei (4) vacuoles 2. protein synthesis is accomplished primarily by the interaction of which two cell structures? (1) vacuoles and mitochondria (3) ribosomes and vacuoles (2) nuclei and ribosomes (4) nuclei and mitochondria 3. which statement best describes the organelles in a cell? (1) all organelles are directly involved with communication between cells. (2) organelles function only when there is a disruption in homeostasis. (3) each organelle must function independently of the other organelles. (4) organelles must work together to maintain homeostasis. 4. the diagram represents a cell that produces digestive enzyme proteins. which cellular structure would be the most likely location for the synthesis of these enzymes? (1) 1 (2) 2 (3) 3 (4) 4 5. some viruses attack cells by attaching to their outer covering, entering, and then taking over their genetic machinery. viruses are able to invade cells after first attaching to their (1) nucleus (2) genetic machinery (3) cell membrane (4) viral proteins

Explanation:

1. Cellular respiration, which releases energy from carbohydrates, mainly occurs in mitochondria.
2. Protein synthesis involves DNA in the nucleus providing genetic information and ribosomes using this information to make proteins.
3. Organelles collaborate to maintain the cell's stable internal environment (homeostasis).
4. Ribosomes are the site of protein synthesis, including digestive - enzyme proteins.
5. Viruses attach to the cell membrane first before entering the cell.

Answer:

1. (1) mitochondria
2. (2) nuclei and ribosomes
3. (4) Organelles must work together to maintain homeostasis.
4. (Assuming ribosomes are one of the numbered structures, if ribosomes are structure 1, then) (1) 1
5. (3) cell membrane